300xl manual 1/25/99 2:34 PM Page i G N C P i l o t ’ s G u i d e 3 0 0 X L a n d R e f e r e n c e
300xl manual 1/25/99 2:34 PM Page ii
00xl manual 1/25/99 2:34 PM Page i INTRODUCTION This manual is written for software version 2.04 or above, and is not suitable for earlier software versions. Foreword © 1999 GARMIN Corporation, 1200 East 151st Street, Olathe, Kansas 66062 USA Tel: 913-397-8200 Fax: 913-397-8282 GARMIN (Europe) LTD, Unit 5, The Quadrangle, Abbey Park, Romsey, Hampshire S051 9AQ, UK Tel: 011-44-1794-519944 Fax: 011-44-1794-519222 GARMIN (Asia) Corp., 4th Fl., No. 1, Lane 45, Pao-Hsing Road, Hsin Tien, Taiwan R.O. C.
300xl manual 1/25/99 2:35 PM Page ii INTRODUCTION Cautions NOTE: This device complies with Part 15 of the FCC limits for Class B digital devices. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. Furthermore, there is no guarantee that interference will not occur in a particular installation.
300xl manual 1/25/99 2:35 PM Page iii Accessories & Packing List Congratulations on choosing the finest, most advanced panel mount IFR GPSCOM available. The GNC 300XL represents GARMIN’s commitment to provide an accurate, easy-to-use GPS for all of your aviation needs. INTRODUCTION Accessories and Packing List Before installing and getting started with your unit, please check to see that your package includes the following items.
300xl manual 1/25/99 2:35 PM Page iv INTRODUCTION Warranty To obtain warranty service, see your local dealer or call the GARMIN Customer Service department for a returned merchandise tracking number. The unit should be securely packaged with the tracking number clearly marked on the outside of the package, and sent freight prepaid and insured to a GARMIN authorized warranty service facility. GARMIN is fully committed to your satisfaction as a customer.
300xl manual 1/25/99 2:35 PM Page v PART ONE: INTRODUCTION Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii Accessories/Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300xl manual 1/25/99 2:35 PM Page vi Section 7: Messages and Unit Settings ( M key) . . . . . . . . . . . . . . . . . . . . .100 INTRODUCTION Table of Contents Appendix A: NavData® and User Data Card Use . . . . . . . . . . . . . . . . . . . . . .112 Appendix B: Installation and Maintenance of the GNC 300XL . . . . . . . . . . . .114 Appendix C: Simulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Appendix D: GNC 300XL Messages and Abbreviations . . . . . . . .
300xl manual 1/25/99 2:35 PM Page vii Key and Knob Functions B Q D T The power/volume knob controls unit power and radio volume. INTRODUCTION Key and Knob Functions The squelch button activates automatic squelch control. The direct-to key performs an instant direct-to, allows you to enter a waypoint, and sets a direct course to the destination. See Section 5.
300xl manual 1/25/99 2:35 PM Page viii INTRODUCTION Key and Knob Functions This manual will describe entering data using the K and O knobs. Experiment with them and become efficient in entering data with the concentric knobs. This will greatly reduce the amount of time required to navigate with the GNC 300XL.
300xl manual 1/25/99 2:35 PM Page 1 The GARMIN GNC 300XL is a powerful navigational tool that provides pilots with accurate navigational data and communication capability, along with along with non-precision approach certification in the IFR environment. The Takeoff Tour is designed to familiarize you with the operation of the GNC 300XL, including powering up the unit, changing frequencies, entering data and performing a simple direct-to, and provide a limited introduction to the ‘Nearest’ functions.
300xl manual 1/25/99 2:35 PM Page 2 TAKEOFF TOUR Acquiring Satellites Once the database has been acknowledged, the satellite status page will appear, and the GNC 300XL will begin to collect satellite information. An ‘Acquiring’ status will be displayed on the satellite status page, and the signal values on the bottom line of the page will begin displaying numeric values. This is a good indication that you are receiving signals and satellite lock will occur.
300xl manual 1/25/99 2:35 PM Page 3 While the GNC 300XL is acquiring a position, let’s take a minute to dial in the active and standby frequencies you’ll be using for the first phase of your flight. The GNC 300XL’s display can be broken down into two separate ‘windows’ (or screen areas), the comm window (the top line of the display) and the GPS window (the bottom three lines of the display).
1/25/99 2:35 PM Page 4 TAKEOFF TOUR Position Page After the GNC 300XL acquires satellites and computes a position, the position page will appear automatically, and you’ll be informed with ‘Ready for navigation’ on the message page. Altitude, MSA or ESA Position (lat/lon) { 300xl manual Reference Waypoint Field The map page combines a moving map display and navigation data for complete situational awareness.
300xl manual 1/25/99 2:35 PM Page 5 The GNC 300XL uses direct point-to-point navigation to guide you from takeoff to touchdown in the IFR environment. Once a destination is selected, the unit will provide speed, course and distance data based upon a direct course from your present position to your destination. A destination can be selected from any page with the D (direct-to) key. TAKEOFF TOUR Direct-To Navigation To select a direct-to destination: 1. Press the D key.
300xl manual 1/25/99 2:35 PM Page 6 TAKEOFF TOUR CDI & Map Pages In addition to the destination field and graphical CDI, the GNC 300XL CDI page features four selectable fields for various navigation data so that the page may be configured to your own preferences (see Section 1 for more information).
300xl manual 1/25/99 2:35 PM Page 7 Airspace Boundaries TAKEOFF TOUR Airport Waypoint Map Page Present Position The map display occupies the right side of the display. Your present position is indicated by a plane symbol (in track up mode) or a position diamond (in other orientation modes), with your route displayed as a solid line. Nearby airports, navaids and user waypoints may be depicted on the map; with unique identifying symbols for each waypoint type.
300xl manual 1/25/99 2:35 PM Page 8 TAKEOFF TOUR Map Scales NAVCOM Page The map display has 14 available ranges from 0.5 to 300 (nautical miles, statute miles or kilometers) representing the vertical height of the map. The map scale is controlled by the inner knob (K), with the current scale displayed in the lower right corner of the page. To select a map scale: 1. Rotate the K knob clockwise to increase the map scale and show a larger area. 2.
300xl manual 1/25/99 2:35 PM Page 9 Once a direct-to is activated, the CDI page will provide navigation to the destination until the direct-to is cancelled or another direct-to destination is activated. To cancel a direct-to from the CDI page: 1. Press the C key twice to activate the cursor in the destination field. TAKEOFF TOUR Cancelling a Direct-To Nearest Waypoints 2. Press \. 3. Press E.
300xl manual 1/25/99 2:35 PM Page 10 TAKEOFF TOUR Nearest Airports Shutting Down Once the nearest airport (or any other nearest waypoint) page is displayed, the selected waypoint can be quickly reviewed or selected as a direct-to destination. To review the selected waypoint from the nearest waypoint list: 1. Press C twice to activate the waypoint field. 2. Press E to display the waypoint identification page. 3. Rotate O to view any additional waypoint information available. 4.
300xl manual 1/25/99 2:35 PM Page 11 Section 1 Navigation Key NAV KEY The GNC 300XL features seven navigation pages to provide various position, course, speed, status and planning information. The pages may be viewed by pressing the N key and rotating the outer knob, or by pressing the N key repeatedly.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 12 NAV KEY CDI Page The GNC 300XL’s CDI page provides you with the important information needed to navigate directly to your destination. The destination field, located at the bottom left of the page, displays the current destination waypoint or active route leg being navigated. If no direct-to destination, route or approach is being navigated, the destination field will remain blank.
1/25/99 2:35 PM Page 13 The following functions may be displayed in the ground speed field: NAV KEY • gs— Your present speed over the ground. • str— Steer direction and distance, or digital crosstrack error. An ‘L’ or ‘R’ indicates which direction to steer, while the distance value indicates how far you are off course. SECTION 1 Configuring the CDI Page The following functions may be displayed in the distance field: • dis— Distance from present position to the ‘active to’ waypoint.
300xl manual 1/25/99 2:35 PM Page 14 To change any of the selectable fields on the CDI page: NAV KEY SECTION 1 1. Press C twice to activate the cursor in the GPS window. CDI & Course Select 2. Rotate O to highlight the field you would like to change. 3. Rotate K to change the field to display the desired information. 4. Rotate O to highlight another field, or C to finish.
300xl manual 1/25/99 2:35 PM Page 15 Map Display { Data Fields Present Position NAV KEY Map Page SECTION 1 Map Scale The next page available from the GNC 300XL’s N key is the map page. The map page displays your present position, using an airplane symbol (in track up mode) or a position diamond (in other orientation modes), along with nearby airports, VORs, NDBs, intersections, user waypoints and airspace boundaries.
300xl manual 1/25/99 2:35 PM Page 16 To select a map scale: SECTION 1 NAV KEY Map Page On the map page the active and standby communication frequencies are in the upper left corner of the page. The active frequency is on top. 1. Rotate the K knob clockwise to increase the map scale and show a larger area. 2. Rotate the K knob counterclockwise to decrease the map scale and show a smaller area.
300xl manual 1/25/99 2:35 PM Page 17 NAV KEY NAVCOM Page SECTION 1 The next page available from the GNC 300XL’s N key is the navigation communications (NAVCOM) page. The NAVCOM page provides a list of the airport frequencies at your departure and arrival airports, allowing convenient selection of frequencies you’ll need along your flight path. To scroll through the list of frequencies, rotate the inner knob (K) in the direction of the arrow prompts at the bottom left of the page.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 18 NAV KEY NAVCOM & Position Pages Once you begin viewing restrictions, you can view any additional frequencies for the selected airport by rotating K. (Note: An arrow prompt displayed next to the airport identifier indicates additional frequencies are available.) You can also view the other airport information pages by rotating O. Information contained on these pages is covered in Section 3. To return to the NAVCOM page, press N.
300xl manual 1/25/99 2:35 PM Page 19 The altitude field can display either the present altitude, minimum safe altitude (MSA) or en route safe altitude (ESA). MSA is the recommended minimum altitude within a ten mile radius of your present position. ESA is the recommended minimum altitude within a ten mile radius of your course on an active route or direct-to.
0xl manual 1/25/99 2:35 PM SECTION 1 Page 20 NAV KEY Reference Waypoints & Satellite Status 3. Use K to choose which waypoint type you would like displayed. (Choose ‘wpt’ if you would like range and bearing from a specific waypoint to be displayed.) 4. Press C to remove the cursor, or: If you have selected ‘wpt’: 5. Rotate O to advance the cursor to highlight the identifier field. 6. Use the K and O knobs to enter the identifier name.
300xl manual 1/25/99 2:35 PM Page 21 The top lines of the status page display active and standby frequencies, followed by the receiver status and the current position accuracy in DOP or EPE. The default setting is DOP. The following functions may be displayed in the DOP/EPE field: • dop— Dilution of Precision, a measure of the satellite geometry quality and relative accuracy of your position, with 1 indicating good geometry and 10 indicating poor.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 22 NAV KEY Receiver Status & Satellite Data Poor Cvrge- The GNC 300XL cannot acquire sufficient satellites for navigation. Need Alt - The GNC 300XL needs altitude in order to start/continue navigation. Press N to display the position page and enter the altitude. Not Usable - The GNC 300XL is unusable due to incorrect initialization or abnormal satellite conditions. Turn the unit off and on again.
300xl manual 1/25/99 2:35 PM Page 23 In addition to the other five pages, the GNC 300XL features two menu pages to perform a host of planning and navigation functions. NAV Menu 1 provides access to the following functions: • Trip Planning • Density altitude/true airspeed calc. • Fuel Planning • Winds aloft calculations • VNAV Planning • Checklists NAV KEY NAV Menu 1 Trip Planning SECTION 1 To display NAV Menu 1: 1. Press N. 2. Rotate O until NAV Menu 1 is displayed.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 24 NAV KEY Density Altitude & True Airspeed The density altitude/true airspeed function is also accessed from NAV Menu 1. Density altitude is the theoretical altitude at which your aircraft will perform depending on several environmental conditions, including air pressure and total air temperature (the temperature including the heating effect of speed, read on a standard outside temperature gauge on most aircraft). True airspeed considers the same factors.
300xl manual 1/25/99 2:35 PM Page 25 To perform fuel planning operations: 1. Press N and rotate O until NAV Menu 1 is displayed. 2. Press C twice and rotate O until ‘Fuel Plan?’ is highlighted. Press E. 3. Rotate K to select either ‘wpt’ for direct navigation or the desired route number. Press E. NAV KEY SECTION NAV Menu 1 Fuel Planning 1 4. For waypoint-waypoint navigation, use K and O to enter the ‘to’ and ‘from’ waypoints. Press E to accept the waypoints.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 26 NAV KEY Winds Aloft & VNAV Functions The GNC 300XL’s winds aloft function is used to calculate the true direction and speed of any winds, and indicates whether you are flying with a head wind or tail wind, and the wind speed. To calculate winds aloft: 1. Press N and rotate O until NAV Menu 1 is displayed. 2. Press C twice and rotate O until ‘Winds?’ is highlighted. Press E. 3. Use K and O to enter your present heading in the ‘hdg:’ field.
300xl manual 1/25/99 2:35 PM Page 27 You will now notice that the vertical speed has been calculated, based on your present speed. If you desire a more rapid climb or descent rate: 8. Use K and O to enter the new desired vertical speed, or press E to accept the calculated value. NAV KEY NAV Menu 1 VNAV & Checklists 9. Press E to activate the vertical navigation function.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 28 NAV KEY Checklists Approach Timer To execute a checklist: 1. Press N and rotate O until NAV Menu 1 is displayed. 2. Press C twice and rotate O until ‘Chklist?’ is highlighted. Press E. 3. Use O to highlight the checklist you would like to see. Press E. 4. Press E to check off list items. To delete a checklist item or an entire checklist: 1. To delete a checklist item, highlight the desired item and press \, followed by E. 2.
300xl manual 1/25/99 2:35 PM Page 29 When the count down timer reaches zero, you will be informed with a ‘Timer expired’ message. The timer will then begin to count up, displaying the time since it expired. The timer runs, if not altered, whenever the GNC 300XL is turned on. The GNC 300XL clock function keeps track of both UTC time (Greenwich Mean Time or Zulu Time calculated from the satellites) and local time, allowing you to designate which format to use for all time displays.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 30 NAV KEY RAIM Prediction The RAIM Prediction function allows you to confirm that GPS coverage is available for your current location or at a specified waypoint any day of the year. Receiver Autonomous Integrity Monitoring performs checks to ensure that the GNC 300XL will have adequate satellite geometry to work with during your flight. RAIM availability will be near 100% in Oceanic, En route and Terminal phases of flight.
300xl manual 1/25/99 2:35 PM Page 31 The scheduler function will display reminder messages (such as ‘Change oil’, ‘Switch fuel tanks’, ‘Overhaul’, etc) after a specified time has elapsed. For example, if you enter ‘Change oil’ to be displayed in 30 hours, the message ‘Change oil’ will be displayed after the GNC 300XL has been running in Normal mode for 30 hours. After appearing, the message will be displayed each time the GNC 300XL is turned on until it is changed or deleted.
300xl manual 1/25/99 2:35 PM SECTION 1 Page 32 NAV KEY Sunrise/Sunset Calculations The GNC 300XL’s sunrise/sunset planning function allows you to calculate the time of sunrise or sunset at any waypoint or your present position for a specified date. To calculate sunrise and sunset times at a waypoint or at your present location: 1. Press N and rotate O until NAV Menu 2 is displayed. 2. Press C twice and rotate O to highlight ‘Sunrise?’. Press E. 3.
300xl manual 1/25/99 2:35 PM Page 33 Section 2 Communicating with the GNC 300XL COMM FEATURES Overview The GNC 300XL features a digital VHF radio that provides a seamless transition from communication to navigation, bringing the two most important functions in flying together in one panel-mount unit. The GNC 300XL operates in the aviation voice band, from 118.000 to 136.975 MHz, in 25 kHz steps.
300xl manual 1/25/99 2:35 PM SECTION 2 Page 34 COMM FEATURES Overview Auto-Tuning During the course of navigating with the GNC 300XL, there may be times when you need to quickly select a comm frequency while you are entering data in the GPS window. Whenever data entry in the GPS window is interrupted by activating the standby frequency field, the GPS field in use will become ‘splatted’, or blocked out. Once the standby frequency has been entered, you may return to data entry by pressing the C key.
300xl manual 1/25/99 2:35 PM Page 35 The GNC 300XL’s automatic squelch and volume controls are located at the bottom left of the unit, near the NavData card slot. To adjust the radio volume: 1. Rotate the B knob. COMM FEATURES SECTION Squelch & Volume Emergency Channel 2 Whenever the GNC 300XL is powered up, the automatic squelch will be in the ‘on’ position, allowing only transmissions which are powerful enough for clear broadcast to be received. Manual squelch control is not available.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 36 WPT KEY Overview The GNC 300XL uses a Jeppesen NavData® card to provide position and facility information for thousands of airports, VORs, NDBs and intersections. Each facility in the database is stored as a waypoint with its own latitude/longitude, identifier (up to five letters and/or numbers), and other pertinent information. Up to 1,000 user waypoints may also be created and stored in the GNC 300XL’s internal memory.
300xl manual 1/25/99 2:35 PM Page 37 The GNC 300XL organizes waypoints into one of five waypoint categories for your convenience. Each waypoint category provides different types of detailed information for a selected facility: • Airports - Identifier, city/state, country, facility name, position (lat/lon), elevation, fuel services, control and approach information, IFR procedures, runways and communication frequencies.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 38 WPT KEY Entering Waypoints After a waypoint category is selected, information for a waypoint may be viewed by entering the identifier or name of the desired waypoint. Airports, VORs and NDBs may be entered by either the identifier, name or the location (city) of the facility. Intersections and user waypoints must be entered by the identifier. To enter a waypoint identifier: 1.
300xl manual 1/25/99 2:35 PM Page 39 Once a waypoint category and identifier have been selected, the GNC 300XL will provide extensive information through a set of waypoint pages for the selected category. The pages available for each waypoint category are presented here in the order they appear on the waypoint menu page: airports, VORs, NDBs, intersections and user waypoints.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 40 WPT KEY Airport Pages Airport communication page. The down arrow next to the identifier indicates additional frequencies may be displayed by rotating the K knob. The GNC 300XL features six airport pages: airport identification— allows entry of desired airport by identifier, facility name or city; displays region and/or country of facility.
300xl manual 1/25/99 2:35 PM Page 41 The airport position page displays the latitude, longitude and elevation of the selected airport, as well as usage or fuel availability, available approaches and airport control/radar capability. The following descriptions and abbreviations are used on the airport position page: Elevation— In feet or meters Usage/Fuel— If the airport is for military use, it will display ‘military’. If it is private, the GNC 300XL will display ‘private’.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 42 WPT KEY Airport Procedures Page The airport procedures page displays all the available approaches, SIDs and STARs at any selected airport in the database, without placing a specific approach, SID or STAR in the active route. This allows the pilot to quickly scan the procedures of any nearby airport in case of an emergency or help plan future flights.
300xl manual 1/25/99 2:35 PM Page 43 The airport communication page displays the radio frequencies and usage for the selected airport, as well as sector and altitude restrictions. To view the communication page from any of the airport information pages: 1. Rotate O with the cursor removed to display the communication page. WPT KEY SECTION Airport Communication Page 3 2. Rotate K in the direction of the arrow prompt to view additional frequencies.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 44 WPT KEY Airport Runway Page The airport runway page displays runway designations, length, surface and lighting for the selected airport, as well as ILS/localizer and/or pilot-controlled lighting frequencies. To view the runway page from any of the airport information pages: 1. Rotate O with the cursor removed to display the runway page. 2. To view additional runway information, rotate K with the cursor removed.
300xl manual 1/25/99 2:35 PM Page 45 VOR Information The GNC 300XL features three VOR waypoint pages: VOR identification— allows entry of desired VOR by identifier, facility name or city; displays region and/or country of facility. WPT KEY VOR Information SECTION 3 VOR position— allows entry of desired VOR by identifier; displays latitude, longitude and frequency; provides magnetic variation, weather broadcasts and DME/TACAN information.
300xl manual 1/25/99 2:35 PM Page 46 NDB Information SECTION 3 WPT KEY NDB Information NDB Position Page The GNC 300XL also uses identification, position and comments pages for NDB information. The NDB waypoint pages are used in the same manner as VOR pages: NDB information is accessed by entering the desired facility’s identifier, city or name (see page 38) on the NDB identification page. NDB identification page To scroll through the NDB pages: 1. Make sure the cursor is not present.
300xl manual 1/25/99 2:35 PM Page 47 Intersection Information WPT KEY Intersection Information SECTION 3 Intersection Position Page The last database waypoint category available is intersections. Two intersection pages are available: intersection position and intersection comments. Intersections may be entered by identifier only (not city or name) on either intersection page. To scroll through the intersection pages: Intersection comments page 1. Make sure the cursor is not present.
300xl manual 1/25/99 2:35 PM Page 48 User Waypoint Information SECTION 3 WPT KEY User Waypoints In addition to the airport, VOR, NDB and intersection waypoints contained in your NavData® card, the GNC 300XL allows you to store up to 1,000 user-defined waypoints.
300xl manual 1/25/99 2:35 PM Page 49 If the waypoint identifier entered does not exist, you will be prompted to select a method to enter the new waypoint’s position into memory. If the waypoint exists (i.e., you’re just reviewing or editing a user waypoint), skip step 4 and move on to the next set of instructions. 4. Select the desired waypoint entry method using O and press E.
300xl manual 1/25/99 2:35 PM Page 50 To enter/edit a user waypoint position from a reference waypoint: SECTION 3 WPT KEY Reference Waypoints 1. Use K and O to enter the reference waypoint’s identifier. 2. Press E. The waypoint’s position will appear. 3. Use K and O to enter the bearing from the reference waypoint. 4. Press E. 5. Use K and O to enter the distance from the reference waypoint. 6. Press E. The latitude and longitude will be calculated for the waypoint. 7.
300xl manual 1/25/99 2:35 PM Page 51 The GNC 300XL’s AutoStoreTM function provides another method of creating user waypoints. AutoStore is used to instantly capture your present position as a user waypoint with a touch of a button and add the new waypoint to the end of a specified route, if desired. WPT KEY Creating Waypoints with AutoStore SECTION 3 To perform an AutoStore: 1. Press N and rotate O to display the position page or map page. 2. Press E.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 52 WPT KEY Proximity Waypoints The second page available from the GNC 300XL’s W key is the proximity waypoints page. This page allows you to define an alarm circle around a selected waypoint and is useful in defining alarm circles around towers or obstructions. Up to nine proximity waypoints can be entered, each with an alarm radius of up to 99.9 nm. To create or edit a proximity waypoint: 1. Press W and use O to display the ‘Proximity waypoints’ page. 2.
300xl manual 1/25/99 2:35 PM Page 53 The third page available from the GNC 300XL’s W key is the user waypoint list, which can be used to quickly scan, review, rename or delete user waypoints. To display the user waypoint list: 1. Press W and use O to display the user waypoint list. WPT KEY User Waypoint List SECTION 3 2. To scroll through the list, rotate K.
300xl manual 1/25/99 2:35 PM SECTION WPT KEY 3 Waypoint Comments Page 54 The last page available through the GNC 300XL’s W key is the waypoints with comments page, which lists all waypoints that have a user comment. User comments may be added to 250 waypoints stored in the user or NavData® database, and allow you to note two lines of special information concerning a particular waypoint. To enter user comments: 1.
300xl manual 1/25/99 2:35 PM Page 55 The GNC 300XL’s extensive waypoint database makes it possible for several waypoints to share the same identifier. To ensure that you are selecting the waypoint desired, the GNC 300XL will always offer the waypoint confirmation page (which shows the waypoint’s position) when an identifier is entered for a particular function. WPT KEY Waypoint Confirmation Duplicate Waypoints SECTION 3 To accept the waypoint position: 1.
300xl manual 1/25/99 2:35 PM SECTION 3 Page 56 WPT KEY Locked Waypoints Waypoint Scanning Possible messages for locked waypoints. Because the GNC 300XL relies on a NavData card for most waypoint information, there may be instances when waypoint information is not available for use. Locked waypoints exist when a waypoint contained in a route, used as a proximity waypoint or with a comment is not contained on the NavData card, or no card is inserted in the unit.
300xl manual 1/25/99 2:35 PM Page 57 Section 4 Nearest Waypoints The GNC 300XL’s T key provides detailed information on the nine nearest airports, VORs, NDBs, intersections and user waypoints within 200 nm of your current position. In addition, it will display the two nearest Flight Service Station (FSS) and center (ARTCC/ FIR) points of communication, plus alert you to any Special Use Airspace (SUA) you may be in or near.
300xl manual 1/25/99 2:35 PM SECTION 4 Page 58 NRST KEY Special Use Airspace The nearest waypoints for other categories (VORs, NDBs, etc.) may be viewed by rotating O. Rotating O continuously to the left will stop page selection on the nearest airport category. The next page available under the GNC 300XL’s T key is the SUA (special-use airspace) alert page.
300xl manual 1/25/99 2:35 PM Page 59 To view the SUA alert page: NRST KEY 1. Press the T key. Special Use Airspace 2. Rotate O one stop to the right to view the SUA alert page. The SUA alert page contains the following information: Alert type SUA number SUA Name or controlling agency Controlling airport identifier SECTION 4 ETE (if applicable) SUA type SUA Ceiling altitude SUA Floor altitude The ‘SUA number’ field displays which SUA you are viewing (you may be alerted to up to nine SUAs).
300xl manual 1/25/99 2:35 PM Page 60 The following SUA types can appear in the SUA type field: SECTION 4 NRST KEY SUA Messages SUA alert page Message alrt caut cl B cl C cta dngr moa proh rstc tma trng trsa unsp warn Airspace Type - Alert - Caution - Class B - Class C - ICAO Control Area - Danger - Military Operations Area - Prohibited - Restricted - ICAO Terminal Control Area - Training - Terminal Radar Service Area - Unspecified - Warning The last line on the SUA alert page displays the SUA’s co
300xl manual 1/25/99 2:35 PM Page 61 NRST KEY Special Use Airspace SECTION 4 SUA Settings Page All SUA alert messages except for prohibited areas may be turned on or off through the GNC 300XL’s unit settings options, found under the M key (see page 108). Alerts for prohibited areas will always be displayed, regardless of unit settings or operating mode. SUA alerts may be turned off so the pilot can avoid continuous alerts in areas with extensive special use airspace.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 62 DIRECT-TO & ROUTE NAV Section 5 Direct-to & Route Navigation One of the many benefits of GPS navigation is the ability to fly directly to a waypoint or fly a chain of waypoints without using ground-based navigation aids. To take advantage of the convenience and efficiency provided by point-to-point GPS navigation, the GNC 300XL provides two basic methods of selecting a destination for your flight: direct-to and route navigation.
300xl manual 1/25/99 2:35 PM Page 63 The GNC 300XL’s direct-to function provides a quick method of setting a course to a destination waypoint. Once a direct-to destination is activated, the GNC 300XL will establish a point-to-point route line along the great circle from your present position to the destination and provide steering guidance and navigation data to the waypoint until it is cancelled.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 64 DIRECT-TO Manually Selecting A Course Whenever you perform a direct-to, the GNC 300XL will set a point-to-point great circle course to your destination. You can also manually define the course to your destination with the GNC 300XL’s course select feature. The course select feature is available from the bottom line of the direct-to confirmation page and works like selecting an OBS course on a VOR indicator.
300xl manual 1/25/99 2:35 PM Page 65 The GNC 300XL lets you create up to 20 routes (numbered 0 through 19), with up to 31 waypoints each. Routes are created, copied and edited through the R key, which features five route pages selectable from the GNC 300XL’s outer knob. ROUTE NAV Active Route Page Route Pages Route Catalog Page SID Select Page SECTION 5 Approach Select Page STAR Select Page The five route pages can be divided into two types: active route pages and a route catalog page.
300xl manual 1/25/99 2:35 PM SECTION Page 66 The GNC 300XL’s route catalog page is used to create, edit, delete or copy routes, and serves as the main page for a host of functions. These include route activation, determining the closest point of approach and search-and-rescue operations. It also displays a summary of routes currently stored in memory, with the departure and arrival route waypoints and total distance for the selected route number. To scroll through the available routes, rotate K.
300xl manual 1/25/99 2:35 PM Page 67 The route editing function allows you to create new routes and edit existing routes. Creating routes before takeoff can help make route operations faster and easier during your flight. To create or edit a route from the route catalog page: ROUTE NAV Creating & Editing Routes 1. Use K to display the route number you would like to edit. SECTION 5 2. Press C twice. 3. Use K to select ‘edit?’. Press E. The route review page will appear. To add a waypoint: 4.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 68 ROUTE NAV Deleting & Activating Routes Once a route is defined through the route catalog page, it may be activated from the route catalog page. Activating or reversing a route places the selected route into route 0 and overwrites the existing active route. To activate a route: 1. Press R and use O to display the route catalog page. 2. Rotate K to display the route you would like to activate. 3. Press C twice and use K to display ‘activate?’. Press E.
300xl manual 1/25/99 2:35 PM Page 69 To copy a route: 1. Press R and use O to display the route catalog page. 2. Use K to display the route to which you would like to copy to. The route must be empty. 3. Press C twice and rotate K to select ‘copy?’. Press E. ROUTE NAV SECTION Copying Routes CPA Function 5 4. Use K to enter the route you would like to copy. The departure/arrival identifiers will be displayed for your reference. Press E to copy the route.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 70 ROUTE NAV Search & Rescue Operations The GNC 300XL’s search-and-rescue function provides navigation guidance for search-and-rescue operations, navigating in a ladder pattern to maximize coverage and efficiency. This is done in reference to two waypoints called ‘anchor waypoints’. The first leg will be a specified distance from the line connecting the anchor waypoints. This is called the ‘offset distance’.
300xl manual 1/25/99 2:35 PM Page 71 The GNC 300XL’s Route RAIM Prediction Function evaluates enroute RAIM availability over the entire route that the pilot intends to fly. Route RAIM Prediction ensures that satellite coverage will be sufficient to meet the protection limits defined by BRNAV/RNP-5 (FAA Advisory Circular 90-96). ROUTE NAV Route RAIM Prediction SECTION 5 To use the Route RAIM Prediction Function: 1.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 72 ROUTE NAV Route RAIM Prediction The time required for RAIM prediction computation depends on the route distance (i.e., 1000 nautical miles = approximately 2 minutes) and the enroute speed. The longer the route distance and the slower the enroute speed, the longer the time. If RAIM unavailability is detected based on the associated requirement, the prediction process will stop immediately and display ‘NO RAIM’ as shown in Figure 4.
300xl manual 1/25/99 2:35 PM Page 73 During route navigation, it is sometimes desirable to navigate a specified distance away from the ‘active leg’ to help avoid certain airspaces or regions. The GNC 300XL’s parallel track feature will automatically guide you along a selected offset from the active leg. Bearing and distance information will be to the waypoints along the original course, with the CDI (on the CDI page) centered on the offset course.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 74 ROUTE NAV Active Route Page USING THE ACTIVE ROUTE PAGE The GNC 300XL’s active route page provides a working list of all waypoints for the route you are navigating, along with distance, timing or desired track information. The scrolling arrow prompt to the left of the route waypoint list indicates which way to scroll to view additional route waypoints.
300xl manual 1/25/99 2:35 PM Page 75 The distance field can be selected to display cumulative (‘cum’) distance or the distance for each route leg (‘leg’). If cumulative is selected, the first leg’s distance will be displayed. The second leg will represent the first leg’s distance plus the second leg, and so on. The time field may be configured to display the estimated time en route (ete), estimated time of arrival (eta) or desired track (dtk) for each leg.
300xl manual 1/25/99 2:35 PM SECTION 5 Page 76 ROUTE NAV On-Route Direct-To You can hold on a destination waypoint by setting the GPS SEQ switch to the ‘HOLD’ position. The GNC 300XL will hold on the current ‘active to’ waypoint as your navigation reference and prevents the unit from sequencing to the next waypoint in the route. A user-defined course may also be selected on the external HSI (OBS). To delete a waypoint from the active route: 1. Press C twice, if necessary, to activate the cursor. 2.
300xl manual 1/25/99 2:35 PM Page 77 During route operations, the CDI page is used to provide turn anticipation, next desired track and waypoint arrival information to the pilot. The GNC 300XL’s turn anticipation feature will smooth out the transition between adjacent route legs by providing CDI guidance along a curved path segment. This leg transition is based on the aircraft’s actual ground speed and the difference between the course angle of the two legs.
300xl manual 1/25/99 2:35 PM SECTION 6 Page 78 APPROACH NAV Overview Once an approach is selected, the GNC 300XL will replace the destination airport with the appropriate approach waypoints. The initial approach fix, final approach fix and missed approach point waypoints are indicated by an ‘if’, ‘ff’ and ‘mp’ designation to the immediate left of the waypoints. In many instances, there may be approach waypoints in the GPS approach that are not shown on the approach plate.
300xl manual 1/25/99 2:35 PM Page 79 The GNC 300XL works in conjunction with a set of external switches and your HSI (OBS) to fly GPS approaches. The external switches are used to control GPS functions, and contain illuminated annunciators to indicate when functions are active. Your installation must also have annunciators for waypoint arrival and GPS messages.
300xl manual 1/25/99 2:35 PM SECTION APPROACH NAV 6 GPS SEQ Switch N W E 24 GPS SEQ AUTO ACTV 15 S 21 OBS 12 FR Always set the desired course on the HSI (OBS) BEFORE returning the GPS SEQ switch to the ‘AUTO’ position. 80 GPS SEQ AUTO ACTV AUTOHOLD The GPS SEQ switch is used to select manual or automatic waypoint sequencing of waypoints.
300xl manual 1/25/99 2:35 PM Page 81 Basic Rules of GPS Approaches The GNC 300XL is the first GPS/COM certified to meet the requirements of TSO C-129a Category A1. When using the GNC 300XL for non-precision approaches, you’ll encounter two types of approaches: overlay approaches (based on existing procedures) and GPS approaches (new approaches designed specifically for GPS).
300xl manual 1/25/99 2:35 PM SECTION 6 Page 82 • If you cross the same waypoint twice in succession during an approach (e.g., the IAF and FAF at the same waypoint, or radar vectors to the FAF), you must set the GPS SEQ switch to the HOLD position prior to crossing the fix the first time to prevent the GPS from sequencing to the next waypoint.
300xl manual 1/25/99 2:35 PM Page 83 Flying A Typical Approach The non-precision approaches available from the GNC 300XL will all follow the same general flow of events described below. Specific details and instructions relating to each step, along with several approach examples are provided later in this chapter. APPROACH NAV Typical Approach Procedures SECTION 6 1.
300xl manual 1/25/99 2:35 PM SECTION 6 Page 84 APPROACH NAV Typical Approach Procedures GPS approaches must be in the current aviation database to be approved. 5. Transition to Active Approach Phase The approach will automatically transition to the active approach stage and the GPS APR annunciator will indicate an ‘ACTV’ status if the following conditions are met: a. The approach is armed b. The aircraft is 2 nm from the FAF on an inbound course c. The GPS SEQ switch is set to the ‘AUTO’ position d.
300xl manual 1/25/99 2:35 PM Page 85 Selecting and Loading an Approach When an arrival airport is selected with the direct-to key (or created and activated in a route to the arrival airport), the approaches for your arrival airport become available through the approach select page, which can be viewed by pressing R and rotating the outer knob. Remember that an airport must be the last waypoint in a route to select an approach. APPROACH NAV Selecting Approaches SECTION 6 To select an approach: 1.
300xl manual 1/25/99 2:35 PM SECTION 6 Page 86 APPROACH NAV Flying the Approach When the aircraft is within 30 nautical miles of the destination airport, the GNC 300XL will automatically arm the approach, and the GPS APR switch will indicate an ‘ARM’ status. To fly the GPS approach (without radar vectors): 1. Confirm that the GPS APR switch indicates an ‘ARM’ status. The CDI scale will begin a steady transition from the 5.0 nm to the 1.0 nm scale as you make your way to the FAF.
300xl manual 1/25/99 2:35 PM Page 87 e. Set the GPS SEQ switch to the AUTO position. The GNC 300XL will resume automatic waypoint sequencing for the remaining approach waypoints. 4. Once the aircraft is within 2 nm of the FAF (and the approach is armed), the ‘ACTV’ annunciator will illuminate and the CDI scale will ramp down to 0.3 nm. NOTE: If the ACTV annunciator does not illuminate, do not descend after crossing the FAF and fly all published missed approach procedures.
300xl manual 1/25/99 2:35 PM Page 88 If you’re not authorized to fly direct-to the missed approach holding point: SECTION 6 APPROACH NAV Missed Approach 1. After the MAP has been crossed, press the D key. The GNC 300XL will automatically display the first waypoint of the missed approach procedure as the next approach waypoint. 2. Press E to confirm the destination. 3. Stop automatic waypoint sequencing by setting the GPS SEQ switch to the HOLD position. 4. Fly the missed approach procedure.
300xl manual 1/25/99 2:35 PM Page 89 The GNC 300XL’s approach select page allows you to review the available approach procedures at the destination airport. From the procedures list, you may select and activate a new procedure on the fly. The active approach is indicated by an on-screen asterisk, and the scrolling arrow prompt indicates which direction to scroll to view additional procedures.
300xl manual 1/25/99 2:35 PM Page 90 APPROACH NAV SECTION 6 GPS Approach Examples GPS APPROACH EXAMPLES In the examples that follow, the GPS waypoints are shown along the approach path. In some cases, intermediate database waypoints have been added to approaches. These waypoints are named using lower case letters using the following convention (the most common database waypoints are defined below). Note that these waypoints are not charted on NOS approach plates.
1/25/99 2:36 PM Page 91 EXAMPLE 1— GPS ONLY APPROACH Example 1 uses the GPS approach into Frederick Municipal Airport (KFDK) and illustrates the basic sequence of selecting and flying a GPS approach, and flying directly to a missed approach holding point. Please refer to the previous sections of this chapter for expanded keystroke instructions. APPROACH NAV SECTION GPS Only Approach Example 6 4. Fly the approach.
300xl manual 1/25/99 2:36 PM Page 92 EXAMPLE 2 – VOR/GPS OVERLAY APPROACH APPROACH NAV SECTION 6 Example 2 uses the VOR/GPS RWY 19 approach into Kansas City Downtown Airport (KMKC) from the south and illustrates an approach with a procedure turn, which requires the pilot to set the GPS SEQ switch to the HOLD position prior to crossing the IAF the first time. This example also illustrates the procedures required when direct navigation to the missed approach holding point is not available.
Page 93 EXAMPLE 3 – VOR/DME ARC OVERLAY APPROACH APPROACH NAV SECTION 6 VOR/DME Arc Example VOR/DME RWY 21 TOPEKA/ FORBES FIELD (FOE) 3000 TOP IAF TOPEKA (IAF) 2. Fly towards the IAF (D094G). The GPS WPT annunciator will flash 15 seconds before you reach the waypoint. PT 0 No 300 Arc P 7 TO 1. Select the VOR RW21 approach and select the D094G initial approach fix to fly the left hand arc from the 094° radial.
1/25/99 2:36 PM SECTION 6 Page 94 6. Monitor your distance and bearing from the DME navaid along the arc. APPROACH NAV 7. The external CDI course deviation needle will begin to center as you approach the inbound course. The GPS WPT annunciator will flash 15 seconds before reaching the course fix, and the desired track for the final approach will appear in place of the graphic CDI.
Page 95 EXAMPLE 4— RADAR VECTORS TO FINAL APPROACH COURSE APPROACH NAV SECTION 6 Radar Vector Example VOR/DME RWY 21 TOPEKA/ FORBES FIELD (FOE) 3000 TOP IAF TOPEKA 2. When you are advised by the controller that you will be receiving radar vectors to the final approach course: (IAF) PT 0 No 300 Arc P 7 TO 1. Select the desired approach and initial approach fix. Thirty nautical miles from the airport, confirm that the GPS APR switch indicates an ‘ARM’ status.
300xl manual 1/25/99 2:36 PM SECTION 6 Page 96 APPROACH NAV Selecting & Activating SIDs The Jeppesen database used in the GNC 300XL features standard terminal arrival routes (STARs) and standard instrument departures (SIDs) that may be placed into any active or stored route. Available SIDs may be selected for the departure airport at any time in the active route as long as the departure airport is the first route waypoint and the route contains more than one waypoint.
300xl manual 1/25/99 2:36 PM Page 97 The SID select page also allows you to review all the available SIDs for the departure airport and select, delete or change the active SID. To replace/delete the active SID: 1. Press R and rotate O until the SID select page appears. APPROACH NAV SECTION Selecting & Deleting SIDs 6 2. Press C twice. The active SID (denoted by an asterisk) is highlighted. 3. To replace the active SID with another available SID, rotate O to highlight the desired SID.
300xl manual 1/25/99 2:36 PM SECTION 6 Page 98 APPROACH NAV Selecting & Activating STARs Standard Terminal Arrival Routes (STARs) used in the GNC 300XL are selected and activated with the same procedures as SIDs. Available STARs may be selected for the destination airport at any time in the active route as long as the destination airport is the last waypoint in the active route or the direct-to waypoint. Activating a STAR will modify the sequence of waypoints in Route 0.
300xl manual 1/25/99 2:36 PM Page 99 The STAR select page also allows you to review all available STARs for the destination airport and select, delete or change the active STAR. To replace/delete a STAR: 1. Press R and rotate O until the STAR select page appears. APPROACH NAV Selecting & Deleting STARs SECTION 6 2. Press C twice. The active STAR (denoted by an asterisk) is highlighted. 3. To replace the active STAR with another available STAR, rotate O to highlight the desired STAR.
300xl manual 1/25/99 2:36 PM SECTION 7 Page 100 Section 7 Messages and Unit Settings UNIT SETTINGS Messages Settings Submenus The GNC 300XL’s M key provides access to system messages and allows you to customize the unit to your own preferences through a settings submenu. Whenever the GNC 300XL needs to alert you to a navigation, communication or system message, the annunciator light (U) next to the M key will flash. Some messages are advisory in nature (e.g.
300xl manual 1/25/99 2:36 PM Page 101 The GNC 300XL’s map page is designed to be a flexible tool that can be customtailored to your navigation needs. The map setup page provides access to many of the features and functions that will help you configure the map page to your own preferences. From the map setup page you can set the map orientation, automatic zoom, and specify which waypoints and airspace boundaries you wish to display.
300xl manual 1/25/99 2:36 PM SECTION 7 Page 102 UNIT SETTINGS Map Page Setup The map setup page also allows you to control whether or not the various waypoint types and the identifiers for these waypoints are displayed. Settings for each waypoint type allow you to select the maximum scale at which that feature should be displayed, or you may turn that waypoint type off for all scales.
300xl manual 1/25/99 2:36 PM Page 103 To enable/disable airspace boundaries on the map: 1. Press and hold M, then rotate O to select the ‘MAP Setup’ page. UNIT SETTINGS 2. Press C twice and rotate O to highlight ‘class B/cta’, ‘class C/tma’, ‘moa’, ‘restricted’ or ‘other sua’. Map Page Setup CDI Settings SECTION 7 3. Rotate K to select the maximum map scale for the designated airspace type, or select ‘off’ to never display.
300xl manual 1/25/99 2:36 PM SECTION 7 Page 104 UNIT SETTINGS Magnetic Variation Arrival Alarm The GNC 300XL has three magnetic variation options: true, auto, or user-defined. To set the magnetic variation: 1. Press and hold M, and use O to display the ‘Mag Var/Arvl Alarm’ page. 2. Press C twice and use K to select ‘auto mag’, ‘true hdg’ or ‘user mag’. 3. If user is selected, use O to highlight the magnetic variation value, and use K and O to enter the value and ‘E’ or ‘W’. Press C to finish.
300xl manual 1/25/99 2:36 PM Page 105 To set the minimum runway length and runway surface: 1. Press and hold M and use O to display the ‘Nearest apt search’ page. 2. Press C twice and use K and O to enter the minimum runway length upon which your aircraft can land (up to 9999 units). Press E to accept the distance. UNIT SETTINGS Nearest Airports Battery Saver SECTION 7 3. Rotate K to display the surface selection you desire.
300xl manual 1/25/99 2:36 PM Page 106 To change the display contrast settings: SECTION 7 UNIT SETTINGS 1. Press and hold M and rotate O to show the ‘Display’ settings page. Display Settings 2. Press C twice and use K to select ‘auto’ or ‘manual’ control. 3. Press E. 4. If ‘manual’ is selected, use K to set the display contrast level. (If ‘auto’ is selected you may also change the offset level to your preference.) 5. Press C to complete.
300xl manual 1/25/99 2:36 PM Page 107 The backlight intensity settings control the backlighting level and allow for automatic adjustment using the built-in photocell or manual adjustment. To change the backlighting intensity: UNIT SETTINGS Backlighting Trip Timer SECTION 7 1. Press and hold M, and rotate O to display the ‘Backlight intensity’ page. 2. Press C twice to highlight the ‘mode’ field. 3. Rotate K to select ‘auto’ or ‘manual’. 4.
300xl manual 1/25/99 2:36 PM SECTION 7 Page 108 UNIT SETTINGS The GNC 300XL can be configured to display data in standard or metric units of measure. These apply to: distance, position, speed, altitude, fuel, pressure and temperature. Units of Measure To change the units of measure: 1. Press and hold M and rotate O to display the nav units page. 2. Press C twice and rotate O to highlight the field you would like to change. 3. Use K to change the unit of measure. 4.
300xl manual 1/25/99 2:36 PM Page 109 The Special Use Airspace settings page will allow you to turn the controlled/ restricted airspace message alerts on or off. This will not affect the alerts listed on the nearest page. It will simply turn off the warning when you are approaching or near an SUA.
300xl manual 1/25/99 2:36 PM SECTION 7 Page 110 UNIT SETTINGS Map Datums The NavData card contains over 100 map datums for you to use when navigating. By default, your unit calculates positions using the WGS 84 map datum. If you are using charts based on another datum, you must set the GNC 300XL to use the same datum. Using a map datum that does not match the charts you are using can result in significant differences in position information.
300xl manual 1/25/99 2:36 PM Page 111 The last page available under the GNC 300XL’s setup menu is the I/O setup page. The I/O setup page lets you configure the GNC 300XL to input RTCM SC-104 correction data, output to a RS-232 mapping device or a PC (with the optional GARMIN PC Kit or other mapping software) and select the appropriate baud rate. The I/O setup page only provides access to I/O channel 2 input/output. For information on using I/O channel 1, please see your GNC 300XL installation manual.
300xl manual 1/25/99 2:36 PM APPENDIX A Page 112 NAVDATA CARD Saving User Data Appendix A NavData and User Data Installation/Operation ® The NavData card supplied with your GNC 300XL can be installed or removed when the GNC 300XL is on or off. Insert the card with the thumb tab at the top, and the beveled corner at the bottom.
300xl manual 1/25/99 2:36 PM Page 113 To restore user data from a user data card to the GNC 300XL: 1. Install the user data card. 2. Rotate O to highlight ‘Restore user data?’. NAVDATA CARD Saving User Data 3. Press E. APPENDIX A The GNC 300XL will ask you which type of data to replace. You may choose checklists, scheduler messages, user waypoints, proximity waypoints, routes, waypoint comments, or all data. 4. Rotate K to select the type of data to replace.
300xl manual 1/25/99 2:36 PM APPENDIX B Page 114 INSTALLATION & MAINTENANCE Appendix B Installation, Removal and Maintenance of the GNC 300XL The aviation rack is designed to allow easy removal of the GNC 300XL. This enables you to use the unit at home to create routes, interface to a PC, etc. using an optional AC adapter. To install the GNC 300XL into the aviation rack: The GNC 300XL is built to exacting standards and does not require user maintenance.
300xl manual 1/25/99 2:36 PM Page 115 Appendix C The GNC 300XL’s simulator mode allows you to plan and practice flights in your home and office using an optional remote battery pack or AC adapter. The simulator is not accessible when the GNC 300XL is running off the master avionics switch. All waypoint and route planning done in simulator mode will be saved in the unit’s internal memory. APPENDIX SIMULATOR C To operate the GNC 300XL in simulator mode: 1.
300xl manual 1/25/99 2:36 PM Page 116 To enter an initial position reference by waypoint identifier: APPENDIX C SIMULATOR 1. Rotate O to highlight the waypoint identifier field. 2. Use K and O to spell out the identifier of the desired airport, navaid or user waypoint. 3. Press E to confirm the identifier. The waypoint confirmation page will appear, displaying the waypoint’s position. 4. Press E to confirm the ‘ok?’ prompt.
300xl manual 1/25/99 2:36 PM Page 117 Appendix D GNC 300XL Messages and Abbreviations The GNC 300XL uses the message page to communicate important information to you. Some messages are advisory in nature, others are warnings that may require your intervention. This appendix provides a complete list of GNC 300XL messages and their meanings. Altitude input fail - The altitude serializer input is not available for the GNC 300XL. Check the I/O settings and/or the serializer installation.
300xl manual 1/25/99 2:36 PM APPENDIX D Page 118 MESSAGES & ABBREVIATIONS Data card failed Data card write fail Degraded accuracy 118 Cannot ofst goto rte - An attempt has been made to engage offset navigation feature while the GNC 300XL is navigating using a single waypoint route. The GNC 300XL will not allow offset navigation in this situation. Checklist is full - The selected checklist is full. No new items can be added until existing items are deleted.
300xl manual 1/25/99 2:36 PM Invald CPA wpt _____ Invalid copy route Invalid CPA route Invalid SAR route Leg not smoothed Memory battery low Near SUA < 2 nm Need alt - press NAV Page 119 - The closest point of approach cannot be created from the waypoint entered on the CPA Page. This occurs when the computed point does not fall on one of the route legs, or when a unique waypoint name for the closest point of approach cannot be found. - A non-empty route was selected for a copy operation.
300xl manual 1/25/99 2:36 PM APPENDIX D Page 120 MESSAGES & ABBREVIATIONS Proximity wpt moved Proximty wpt deleted Pwr down and re-init Offset nav cancelled Offset nav in effect Ofst too big for rte Osc needs adjustment Poor GPS coverage Prox alarm-press NAV Proximity overlap Proximity wpt locked 120 - Offset navigation has been cancelled due to a direct-to operation or modification of the active route. - Offset navigation mode is in effect.
300xl manual 1/25/99 2:36 PM Page 121 Remote ENT key stuck - The remote ENT key is stuck in the ‘pressed’ state. Check the installation. Remote XFR key stuck - The remote XFR key is stuck in the ‘pressed’ state. Check the installation. ROM failed - The GNC 300XL has detected a failure in its permanent memory. If this message occurs, the unit is unusable and should be taken to an authorized GARMIN service center. Route is empty - An attempt has been made to activate an empty route.
300xl manual 1/25/99 2:36 PM APPENDIX D MESSAGES & ABBREVIATIONS SUA ahead < 10 min 122 Page 122 - The projected course and current speed will take you inside an SUA within the next 10 minutes. SUA near & ahead - Your position is within two nautical miles of an SUA and your current course will take you inside. Timer expired - The approach timer has expired. User data RX started - Data receive operations have started. Usr data TX complete - Data transmit operations are complete.
300xl manual 1/25/99 2:36 PM Page 123 This section of Appendix D provides a complete list of GNC 300XL abbreviations and their meanings.
300xl manual 1/25/99 2:36 PM APPENDIX D 124 Page 124 MESSAGES & ABBREVIATIONS ILSInstrument Landing System IGImperial Gallons INTIntersection Waypoint JET A- Jet Fuel - Type A JET B- Jet Fuel - Type B KHKilometers Per Hour KMKilometers KTKnots LBPounds LCLLocal LENLength LFLOW- Left Fuel Flow LFOB- Leftover Fuel On Board LOCLocalizer LTLiters MAG VAR-Magnetic Variation MBMillibars Of Pressure MFMandatory Frequency MHStatute Miles Per Hour MIStatute Miles MICMicrophone MINMinimum MIN - Minutes MOA- Mi
300xl manual 1/25/99 2:36 PM RNWYRSTCDRSVRTERXSARSECSEQSGLSID- Page 125 Runway Restricted Reserves Route Receive Only Search And Rescue Seconds Sequence Signal Standard Instrument Departure SLCT- Select SRFC- Surface STAR- Standard Terminal Arrival Route STRSteer To TACAN- TACtical Air Navigational Aid TASTrue Airspeed TAT Total Air Temperature TEMP- Temperature TMAICAO Terminal Control Area TRKTrack Angle TRNTurn Angle TRSA- Terminal Radar Service Area TWR- Tower TXTransmit Only UUTC Time UNIURAUSER-
300xl manual 1/25/99 2:36 PM APPENDIX E Page 126 SPECIFICATIONS Appendix E Specifications PHYSICAL Size: Weight: Rack Size: Rack Weight: 6.25”W x 5.8”D x 2”H (159mm x 147mm x 51mm) 39 ounces (1.11kg) 6.32”W x 5.64”D x 2”H (161mm x 143mm x 51mm) 11 ounces (0.31kg) POWER ** Subject to accuracy degradation to 100m 2DRMS under the US DOD-imposed Selective Availability Program.
300xl manual 1/25/99 2:36 PM Page 127 Appendix F Map Datums ADINDAN Ethiopia, Mali, Senegal, Sudan AFGOOYE Somalia AIN EL ABD 1970 Bahrain Island, Saudi Arabia ANNA 1 ASTRO 1965 Cocos Islands ARC 1950 Botswana, Lesotho, Malawi, Swaziland, Zaire, Zambia, Zimbabwe ARC 1960 Kenya, Tanzania ASCENSION IS 1958 Ascension Island ASTRO B4 SOROL ATOLL Tern Island ASTRO BEACON “E” Iwo Jima Island ASTRO DOS 71/4 St.
300xl manual 1/25/99 2:36 PM Page 128 LUZON PHILIPPINES APPENDIX F MAP DATUMS MAHE 1971 MARCO ASTRO MASSAWA MERCHICH MIDWAY ASTRO 1961 MINNA NAD27 ALASKA NAD27 BAHAMAS NAD27 CANADA NAD27 CANAL ZONE NAD27 CARIBBEAN NAD27 CENTRL AMERICA NAD27 CONUS NAD27 CUBA NAD27 GREENLAND NAD27 MEXICO NAD27 SAN SALVADR IS NAD83 NAHRWAN MASIRAH IS NAHRWAN SAUDI ARABIA NAHRWAN UNITD ARAB E NAPARIMA BWI NETHERLAND TRIAG ‘21 NOU TRIAG FRANCE NOU TRIAG LUXEMBOURG OBSERVATORIO 1966 128 OLD EGYPTIAN OLD HAWAIIAN KAUAI
300xl manual 1/25/99 2:36 PM Page 129 Appendix G Troubleshooting Q & A The GNC 300XL is a precision navigation instrument that offers a wide array of performance navigation features. The ‘Q & A’ section is designed to answer some of the common questions regarding the GNC 300XL’s capabilities and operation. If you have a problem operating your unit, go through the troubleshooting section and refer to the reference section noted.
300xl manual 1/25/99 2:36 PM APPENDIX G Page 130 TROUBLESHOOTING Q&A Why aren’t there any approaches available for my route? Approaches are only available when the final route waypoint or direct-to destination is an airport (some VOR/VORTAC identifiers are similar to airport identifiers). If a destination airport does not have a GPS approach, the GNC 300XL will display a ‘no procedures in database’ message. For more on selecting an approach, see page 89.
300xl manual 1/25/99 2:36 PM Page 131 What does the GPS APR switch do? What is ‘arming’ an approach? The GPS APR switch must be set to the ARM position for an approach to enter the active phase. It may be left in the ARM position to simplify approach operation. Its main function is to provide the pilot with a quick method of deactivating the approach and returning the CDI scale to the 1 nm scale in the event of a missed approach. For more on the GPS APR switch and arming approaches, see pages 78-79.
300xl manual 1/25/99 2:36 PM APPENDIX G Page 132 TROUBLESHOOTING Q&A When should I switch from HOLD to AUTO, and what happens when I do? Once you are ready to resume automatic waypoint sequencing, you must set the desired course on your HSI two seconds before changing the GPS SEQ switch to the AUTO position. This allows the the desired course to ‘settle’ prior to the GNC 300XL using it.
300xl manual 1/25/99 2:36 PM Page 133 When does turn anticipation begin, and what bank angle is expected? The GNC 300XL will smooth adjacent leg transitions based upon a nominal 15º bank angle (with the ability to roll up to 25º) and provide three pilot cues for turn anticipation: 1) The waypoint annunciator will flash 15 seconds before the turn point and glow steadily 2 seconds prior to the turn anticipation point. Begin the turn when the annunciator goes steady.
300xl manual 1/25/99 2:36 PM APPENDIX G 134 Page 134 TROUBLESHOOTING Q&A What is the correct missed approach procedure? How do I select the missed approach holding point? To comply with TSO specifications, the GNC 300XL will not automatically sequence to the missed approach holding point. The first waypoint in the missed approach procedure will be displayed as the next approach waypoint when the pilot performs a direct-to AFTER crossing the MAP, which the pilot may activate when authorized.
300xl manual 1/25/99 2:36 PM Page 135 Appendix H Index A Abbreviations . . . . . . . . . . . . . . . . . 123-125 Accessory list . . . . . . . . . . . . . . . . . . . . . . iii Activating a route . . . . . . . . . . . . . . . . . . 68 Activating a route in reverse . . . . . . . . . . . 68 Active frequency . . . . . . . . . . . . . . . . . 3, 33 Active to & from waypoints . . . . . . . . 62, 74 Active route page. . . . . . . . . . . . . . . . . . . 74 Adding waypoints to a route . . . . . . .
300xl manual 1/25/99 2:36 PM APPENDIX H INDEX Page 136 Direct-to key . . . . . . . . . . . . . . . . . vii, 5, 63 Direct-to navigation . . . . . . . . . . . . 5, 62-64 Display contrast. . . . . . . . . . . . . . . . . . . 106 Display mode . . . . . . . . . . . . . . . . . . . . 106 Displaying airports. . . . . . . . . . . . . . . . . 102 Displaying identifiers . . . . . . . . . . . . . . . 102 Displaying airspace boundaries. . . . . . . . 103 DOP . . . . . . . . . . . . . . . . . . . . . . . . .
300xl manual 1/25/99 2:36 PM Page 137 NAV menu 2 . . . . . . . . . . . . . . 4, 11, 28-32 NAVCOM page . . . . . . . . . . . 4, 8, 11, 17-18 NavData cards . . . . . . . . . . . . . 36, 112-113 Navigation terms . . . . . . . . . . . . . . . . . . . 13 NDBs . . . . . . . . . . . . . . . . . . . . . . . . 37, 46 NRST key . . . . . . . . . . . . . . . . . . . vii, 9, 57 Nearest airport. . . . . . . . . . . . . . . 9, 57, 104 Nearest SUA. . . . . . . . . . . . . . . . . . . . 58-61 Nearest waypoints . . . . .
300xl manual 1/25/99 2:36 PM APPENDIX H INDEX Page 138 T Table of contents . . . . . . . . . . . . . . . . . . v-vi Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Transfer key . . . . . . . . . . . . . . . . . viii, 3, 33 Trip planning . . . . . . . . . . . . . . . . . . . . . 23 Trip timer . . . . . . . . . . . . . . . . . . . . 29, 107 Trip timer settings . . . . . . . . . . . . . . . . . 107 True air speed . . . . . . . . . . . . . . . . . . . . . 24 Turn anticipation . . . . . . . .
300xl manual 1/25/99 2:36 PM Page 139 139
300xl manual 1/25/99 2:36 PM Page 140 © 1999 GARMIN Corporation GARMIN International, Inc., 1200 East 151st Street Olathe, KS 66062 GARMIN (Europe) LTD, Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9AQ, UK GARMIN (Asia) Corp., 4th Fl., No. 1, Lane 45, Pao-Hsing Road, Hsin Tien, Taiwan R.O.C. Web Site Address: www.garmin.com Part No. 190-00067-30 Rev.
