Apollo Model SL30 NAV/COMM Installation Manual November 1999 560-0404-00
1999 by UPS Aviation Technologies Inc. All rights reserved. Printed in the USA No part of this document may be transmitted, reproduced, or copied in any form or by any means without the prior written consent of UPS Aviation Technologies Inc. Due to UPS Aviation Technologies’s commitment to constantly improve the quality and performance of our products, information contained in this document is subject to change without notice.
HISTORY OF REVISIONS Revision -- Date 11/16/99 Description Initial release (EN6278). IMPORTANT NOTE “The conditions and tests required for TSO approval of this article are minimum performance standards. It is the responsibility of those desiring to install this article on or within a specific type or class of aircraft to determine that the aircraft operating conditions are within TSO standards.
NOTES
Table of Contents TABLE OF CONTENTS SECTION 1 - INTRODUCTION .............................................................................................1 ABOUT THIS MANUAL..................................................................................................................1 APOLLO SL30 DESCRIPTION .........................................................................................................1 FEATURES ..................................................................................
Table of Contents SECTION 3 - SPECIFICATIONS......................................................................................... 37 ELECTRICAL.............................................................................................................................. 37 PHYSICAL ................................................................................................................................. 37 ENVIRONMENTAL................................................................................
Table of Contents SET ACTIVE VOR/LOC FREQUENCY AND RECEIVER FUNCTION .......................................................................... 62 SET STANDBY VOR/LOC FREQUENCY AND RECEIVER FUNCTION ....................................................................... 62 SET STANDBY COMM FREQUENCY ................................................................................................................... 63 SET NAV AUDIO MODE .........................................................................
Table of Contents LIST OF TABLES TABLE 1 - PACKAGE CONTENTS................................................................................................... 5 TABLE 2 - COMM INTERFACE CONNECTOR PINOUT .................................................................... 43 TABLE 3 - REAR PANEL CONNECTOR PINOUT ............................................................................ 44 TABLE 4 - TROUBLESHOOTING GUIDE.......................................................................................
Introduction SECTION 1 - INTRODUCTION ABOUT THIS MANUAL This manual describes the installation of the Apollo SL30 Nav/Comm units. It is intended for use by persons certified by the Federal Aviation Administration (FAA) to install aircraft navigation devices. It includes installation and checkout procedures for the SL30 unit to standards described in FAA advisory circulars AC 20-67B (for Comm). Section 1 Provides an introduction to the Apollo SL30 unit.
Introduction Figure 1 - SL30 Front Panel FEATURES GENERAL FEATURES • • • • • • 32 character high-intensity alphanumeric LED display Sunlight readable full alphanumeric display Automatic display intensity Back-lit buttons 200 channel memory (stored alphabetically) Remote frequency flip-flop input pin NAVIGATION RADIO FEATURES • • • • • • • • • • • • 2 200 channel Nav with solid state DSP technology VOR/Localizer and Glideslope receivers Built-in VOR/Localizer converter Frequency range: VOR 108.00 – 117.
Introduction • • • Internal RF diplexor Active and standby flip/flop frequencies DME tuning an data display COMM RADIO FEATURES • • • • • • • • • • • • 760 communications channels Frequency range 118 to 136.
Introduction SYSTEM INTERFACES NAVIGATION RECEIVER The SL30 can be installed in several configurations based upon individual requirements. This includes with or without an external course deviation indicator. The CDI may be discrete, serial, or composite.
Introduction UNPACKING THE EQUIPMENT Carefully unpack the equipment. Visually inspect the package contents for any evidence of shipping damage. Retain all shipping containers and packaging material in case reshipment is necessary. PACKAGE CONTENTS As shipped from the UPS Aviation Technologies factory, the Apollo SL30 package includes most items necessary for installation other than supplies normally available at the installation shop, such as wire and cable ties, and required input and output equipment.
Introduction OTHER REQUIRED MATERIALS The SL30 is intended for use with standard aviation accessories. External devices required for various installations are listed below.
Introduction LICENSE REQUIREMENTS An aircraft radio station license may be required for operation of the SL30 Comm transmitter once installed in the aircraft. An application must be submitted on FCC Form 404, Form 605 or later revised application, which may be obtained from the FCC in Washington, DC, or any of its field offices. Procedures for applications are in CFR 47, Part 87, Aviation Services, Subpart B, Applications and Licenses.
Introduction NOTES 8 Apollo SL30 Installation Manual
Installation SECTION 2 - INSTALLATION This section describes the installation of the SL30 including mounting, wiring, and connections. A post installation check-out procedure is included at the end of this section. PRE-INSTALLATION INFORMATION Always follow good avionics installation practices per FAA Advisory Circulars (AC) 43.131B, 43.13-2A, and AC 20-67B, or later FAA approved revisions of these documents.
Installation 3. The valid flag sensitivity shall be 125 mV ± 10% for the flag to leave the stop and 260 mV ± 10% maximum for flag to be fully concealed. 4. The To/From flag shall have an input impedance of 200 ohms ± 10% and a sensitivity of ± 40 mV ± 15% at 25oC with flag fully in view. 5. The OBS resolver should be compatible with a standard 6-wire OBS interface: H........... Reference output high C ........... Reference output low D........... S1 COS input high E ........... S3 COS input low F ..........
Installation Figure 2 - Mounting Frame Assembly Figure 3 - Cable Routing Apollo SL30 Installation Manual 11
Installation ELECTRICAL CONNECTIONS The SL30 installation kit includes 15- and 37-pin d-sub shells and crimp contacts. The crimp contacts are specified for 20 to 24 awg wire. Make the crimp connections with a crimp tool as specified on page 6. All wires should be 20 to 24 AWG unless otherwise specified. Wiring diagrams are included in this section. POWER The SL30 requires two power connections, one for the Nav side of the unit, the other for the Comm.
Installation MICROPHONE INPUTS Microphone input connections should be made using a twisted pair shielded cable. Attach the signal ground to the mic ground pin on the rear connector and connect the shield to the rear connector plate. TRANSMIT KEY INPUT The TxKey input on the rear connector must be pulled low to ground to enable the transmitter. This input should be connected to a microphone or yoke mounted momentary push button switch.
Installation Clamp Nut Slit 1/4" (2X) Step 1. 0.031 - Slide clamp nut over coax. - Strip coax as illustrated. - Cut two 1/4" slits in jacket 180 degrees apart. 0.125 0.375 Step 2. Braid Clamp - Slide braid clamp over end of coax and under the braid. Cap Step 3. - Insert coax with braid clamp into connector and tighten clamp nut securely. - Solder the center conductor of the coax to the contact as illustrated. - Attach the cap and secure tightly.
Installation Dual Antennas and Dual SL30s If dual SL30s and separate VOR and glideslope antennas are installed in the aircraft, a combiner and a splitter must be used. VOR/LOC Antenna GS Antenna 1 Splitter/ S Combiner 2 S Splitter/ 1 Combiner 2 SL30 #1 SL30 #2 Installations should use an appropriate splitter/combiner, such as the Mini-Circuits ZFSC-2-1B BNC, available as an option under the UPS Aviation Technologies part number 115-0007.
Installation Figure 5 - SL30 Comm Wiring Diagram 16 Apollo SL30 Installation Manual
Installation Figure 6 - SL30 Comm Typical Audio Panel Connections Apollo SL30 Installation Manual 17
Installation SL30 37-Pin Connector 2 amp fuse or breaker Power + 1 + Ground 2 - NAV Audio Audio Gnd 23 20 SL10/15 Audio Panel Avionics Power NAV 1 NAV 2 NAV Audio 12 13 Audio Gnd 1 1 Coax cable to Nav anntena capable of receiving both VOR/LOC & GS NAV Antenna NOTES: 1. 2. 3. 4. Connect cable shields to the mounting frame; pigtails < 1.25 inches. Connect shields chassis ground at both ends of each shielded cable. Avionics power leads should use 20 awg wire.
Installation SL30 Mid Cont MD200-306/307 Rslvr{H} 24 1 Rslvr{H} Rslvr{C} 25 2 Rslvr{C} Rslvr{D} 7 3 Rslvr{D} Rslvr{E} Rslvr{F} 26 16 5 4 Rslvr{E} Rslvr{F} Rslvr{G} 34 6 Rslvr{G} +NAV Flag 10 7 +NAV Flag -NAV Flag +GS Flag 29 28 8 15 -NAV Flag +Vert (GS) Flag -GS Flag 32 16 -Vert (GS) Flag +TO Flag +FR Flag 12 11 9 10 +TO Flag +FR Flag GSI Up GSI Down 30 31 13 +Up 14 +Down CDI Left CDI Right 14 13 11 12 +CDI Left +CDI Right 17 GPS Ann.
Installation Mid Cont MD200-302/303 SL30 Rslvr{H} 24 1 Rslvr{H} Rslvr{C} 25 2 Rslvr{C} Rslvr{D} 7 3 Rslvr{D} Rslvr{E} Rslvr{F} 26 16 5 4 Rslvr{E} Rslvr{F} Rslvr{G} 34 6 Rslvr{G} +NAV Flag 10 7 +NAV Flag -NAV Flag 29 8 -NAV Flag +TO Flag +FR Flag 12 11 9 10 +TO Flag +FR Flag CDI Left 14 11 CDI Left CDI Right 13 12 CDI Right 24 Nav Ann. Back Crse 15 ILS Enbl 33 18 To Auto-Pilot High Sense N/C +13.
Apollo SL30 Installation Manual 30 31 14 13 33 19 37 GSI Up GSI Down CDI Left CDI Right ILS Enbl Composite Comp Gnd GPS NOTES: Spare (Comm) ILS Energize ACU 60 62 61 Spare (Nav) Spare (GPS) 26 27 32 33 39 15 14 21 38 20 CDI Left CDI Right 57 HI Sense 58 28 29 GSI Down GSI Up -GS Flag +TO Flag +FR Flag +GS Flag +NAV Flag -NAV Flag 1. Use shielded cable for Resolver signals 2. Connect cable shields to the mounting frame: pigtails < 1.25 inches 3.
Installation SL30 STEC: IND-351A Rslvr{H} 24 1 Rslvr{H} Rslvr{C} Rslvr{D} 25 7 2 3 Rslvr{C} Rslvr{D} Rslvr{E} Rslvr{F} Rslvr{G} 26 16 34 5 4 6 Rslvr{E} Rslvr{F} Rslvr{G} +NAV Flag 10 7 +NAV Flag -NAV Flag +GS Flag 29 28 8 15 -NAV Flag +GS Flag -GS Flag +TO Flag 32 12 16 9 -GS Flag +TO Flag +FR Flag 11 10 +FR Flag CDI Left 14 11 CDI Left CDI Right GSI Up 13 30 12 13 CDI Right GSI Up GSI Down 31 14 GSI Down 24 BC Ann. 25 23 Ann. Dim 13.8 Dim 22 21 27.
Installation Bendix King Nav Converter and Nav Indicator with Converter Apollo SL30 Nav/Comm Bendix/King KN 72 Bendix/King Bendix/King KN 203 KN 204 Bendix/King Bendix/King KN 208 KN 208A Bendix/King Bendix/King KN 209 KN 209A GSI Up 30 k 3 29 Glideslope Deviation +Up GSI Down 31 m 6 28 Glideslope Deviation +Down +GS Flag 28 H 9 25 Glideslope Deviation +Flag -GS Flag 32 J 12 24 Glideslope Deviation -Flag ILS Enbl 33 S 8 8 4 10 4 10 ILS Energize Composite 19 6 Y Y
Installation Bendix King Indicator with OBS Resolver without Converter Apollo SL30 Nav/Comm Back Course 15 GSI Up Amber BC Light Lamp Voltage From Dimmer Circuit Bendix/King Bendix/King KI 202 KI 206 P2021 30 P2061 Bendix/King Bendix/King KI 525A KPI 552 P1 P2 P101 k E JJ Glideslope Deviation +Up m B H H Glideslope Deviation +Down J GSI Down 31 +GS Flag 28 H -GS Flag 32 J CDI Right 13 j CDI Left 14 n NAV Flag + 10 N N 29 F F + From 11 S + To 12 e Rslvr{H} 24
Installation SL30 Sandel SN3308 Rslvr{H} 24 13 OBS In Rslvr{C} Rslvr{D} 25 7 32 COS Rslvr{E} Rslvr{F} Rslvr{G} 26 16 34 28 14 VREF SIN +NAV Flag 10 18 +NAV Flag -NAV Flag +GS Flag -GS Flag 29 28 32 36 15 33 -NAV Flag +GS Flag -GS Flag +TO Flag +FR Flag 12 11 17 35 +TO Flag +FR Flag GSI Up 16 34 GSI Up GSI Down 30 31 CDI Left 14 37 CDI Left CDI Right 13 19 CDI Right Back Crse ILS Enbl 15 33 Amber BC Light GSI Down Lamp Voltage From Dimmer Circuit.
Installation SL30 Sandel SN3308 +GS Flag -GS Flag 28 32 15 33 +GS Flag -GS Flag GSI Up 30 31 16 34 GSI Up GSI Down ILS Enbl 33 NAV 1 27 Composite 19 29 GSI Down NAV 2 8 ILS Enrgze 10 Composite Gnd 37 37-Pin Connector NOTES: 1. Use shieled cable for resolver signals 2. Connect cable shields to the mounting frame: pigtails < 1.25 inches 3. Connect shields chassis ground at both ends of each shielded cable 4.
Installation Apollo SL30 Nav/Comm Back Course 15 GSI Up Amber BC Light Lamp Voltage From Dimmer Circuit 30 Collins 331A-6P P1 Collins 331A-9G Sperry RD 550A P1 P1 P2 P2 Sperry RD 650 P1 Navigation Indicator P2 33 5 C 5 +Up 6 D 6 +Down GSI Down 31 34 +GS Flag 28 35 Glideslope +Flag -GS Flag 32 36 Glideslope -Flag GS Superflag 9 7 U 38 Glideslope Superflag W 8 Glideslope Superflag Lo CDI Right 13 28 3 E 3 + Right CDI Left 14 29 4 F 4 + Left NAV Flag
Installation LIMITATIONS ON USING A COMPOSITE SIGNAL If an external converter is driven from the composite output in conjunction with a full function CDI/HSI with resolver, the indicator head type, when selected from the Setup Mode during the post installation checkout, should be RESOLVER. In this installation, the composite output will be disabled whenever the VOR monitor mode is active or back course localizer mode is enabled. This will cause the external converter to flag.
Installation • NONE: No external resolver is supported. OBS mode allows the user to edit the OBS with concentric knobs. • RESOLVER: Auto-decodes resolver setting via six-wire resolver interface. Uses internal DSP to compute course information. • CONVERTER: Disables all internal OBS functions. Disables VOR monitor and BC selection. It allows use of conventional external converter via the composite output pin.
Installation Flags Test The Flags test in Setup Mode sends an active signal for each selected flag so you can test the interface to the connected devices directly from the front panel while you are on the ground. The Flag tests include LOC (Localizer), BC (Back Course), FR (From), TO (TO), NAV (NAV), and GS (Glideslope). When a selection is in large text, an active signal is sent from the SL30. 1. In the Setup Mode, turn the large knob to the FLAGS TEST page. 2. Press SEL.
Installation VHF NAV Checkout On the Ground Check the VOR reception with ground equipment, operating VOT or VOR, and verify audio and Morse code ID functions (if possible). Tune a Localizer frequency and verify the CDI needle and NAV flag, and GSI needle GS flag. Comm Setup and Checkout Com RF Squelch This valued is used by the Comm function to control its squelch level. It is usually not necessary to adjust this value from its factory setting. 1.
Installation Antenna Check The antenna Vswr can be checked using an inline wattmeter in the antenna coax using frequencies near both ends of the band. The Vswr should be < 2:1, and is not to exceed 3:1. A Vswr of 2:1 will cause a drop in output power of approximately 12%, and 3:1 causes approximately a 26% drop. Sidetone Level Adjustment The sidetone volume was preset at the factory to a typical audio level. The level can be adjusted using one of the built-in system functions.
Installation Comm Flight Test Check A flight test is recommended as a final installation verification. The performance may be verified by contacting a ground station at a range of at least 50nm while maintaining an appropriate altitude and over all normal flight attitudes. Performance should be checked using low, high, and mid band frequencies. Check the VOR 1. Tune a local VOR station within 50 miles. 2. Verify the audio ident/voice quality. 3.
Installation APOLLO SL30 POST-INSTALLATION CHECKOUT LOG Date: ___/___/___ By: _____________ CONFIGURATION INFORMATION: SL30 NAV/COMM 430-6040-3_____ Mod ____ Serial # ___________ TEST MODE CHECKOUT AND SETUP: Avionics Outputs: [ ] Resolver [ ] Converter [ ] Serial [ ] None [ ] Calibration (if Resolver) [ ] Control Test [ ] Display Test [ ] NAV Valid flag [ ] GS Valid flag [ ] TO/FROM flag (OFF, TO, FROM) [ ] External annunciator (BC) [ ] CDI (left, mid, right) [ ] GS (up, mid, down) [ ] Enable Weather Fr
Installation INSTRUCTIONS FOR CONTINUED AIRWORTHINESS Modification of an aircraft for the installation of the SL30 obligates the aircraft operator to include the maintenance information provided by this section in the operator’s Aircraft Maintenance Manual and the operator’s Aircraft Scheduled Maintenance Program. 1. Maintenance manual information (system description, operation, location, removal, testing, etc.
Installation NOTES 36 Apollo SL30 Installation Manual
Specifications SECTION 3 - SPECIFICATIONS This section includes detailed electrical, physical, environmental and performance specifications for the Apollo SL30. ELECTRICAL Input voltage............................................10 VDC to 40 VDC, reverse polarity protected Input current (VHF navigation input).......325 mA typical, 500 mA max at 13.75 VDC 170 mA typical, 350 mA max at 27.5 VDC Input current (Comm input) .....................270 mA typical, 2 A max at 13.
Specifications Figure 18 - Unit Dimensions AVIONICS OUTPUTS CDI L/R deviation....................................±150 mV full scale, will drive up to 200-ohm load TO/OFF/FROM flag ................................±250 mV, TO/FROM indication, will drive up to 200-ohm load Nav valid flag...........................................+300 mV for valid indication, will drive up to 200ohm load Nav superflag...........................................
Specifications NAV RECEIVER PERFORMANCE VOR TSO compliance ......................................TSO-C40c (DO-196) Applicable documents ..............................RTCA DO-196 Operational class......................................N/A Accuracy category ...................................B {-46oC to + 55o C } Frequency range.......................................108.00 to 117.95 MHz in 50 kHz increments Frequency tolerance .................................0.0008% Cross modulation products.................
Specifications GLIDESLOPE TSO compliance.......................................TSO-C34e (DO-192) Applicable documents ..............................RTCA DO-192 Operational class ......................................N/A Accuracy category ...................................B {-46oC to + 55oC } Frequency range.......................................329.150 to 335.00 MHz Frequency tolerance .................................0.0008% Cross modulation products.......................
Specifications Output signal voltage ...............................0.390 VRMS (0.275 VRMS @ 90 Hz, 0.275 VRMS @ 150 Hz) Output loading.........................................1,000 ohms (max) ILS energize signal...................................Sinks up to 400 mA (max) COMM RECEIVER PERFORMANCE Class........................................................D Frequency range.......................................118.000 to 136.975 MHz, 760 channels Sensitivity................................................
Specifications Duty cycle................................................100% Stuck mic time-out...................................35-second time-out, reverts to receive INTERCOM PERFORMANCE Microphone input.....................................Two inputs, standard carbon or dynamic mic with integrated preamp providing minimum 70 mv rms into 1000 Ω load Headphone audio output level ..................280 mW into 100 Ω, 120 mW into 500 Ω AGC characteristics .................................
Specifications SERIAL INTERFACE RS-232 ....................................................Defined in Appendix E - Serial Interface Specifications REAR CONNECTOR PINOUT The SL30 includes two rear panel connectors, a 15-pin for the Comm interface connections and a 37-pin for the rear panel connections. The pinout for the connectors is listed in the following tables.
Specifications Table 3 - Rear Panel Connector Pinout Pin # I/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 I I O I O I I I O O O O O O O O --O O O O O O O I O O O O O O O O -O O Connection Function Power + Power ground Serial ground RxD1 TxD1 Test Input OBS_D {S1} Flip/Flop GSI superflag Nav + valid + FROM + TO CDI + Right CDI + Left Back course OBS_F {S4} Reserved Reserved Composite Output Audio ground Reserved Reserved NAV Audio Output OBS_H
Limitations SECTION 4 - LIMITATIONS INSTALLATION For minimum equipment and connections required for VFR or IFR installations, refer to the Minimum System Configuration section on page 9. Installations of the SL30 Nav/Comm functions are to be made in accordance with AC 20-67B, TSO-C37d, TSO-C38d, TSO-C128, TSO-C34e, TSO-C36e, TSO-C40c, TSO-C66c, FAR Part 21-Subpart O, FAR Part 21-Subpart K, or other appropriate FAA approved guidelines.
Limitations NOTES 46 Apollo SL30 Installation Manual
Troubleshooting APPENDIX A - TROUBLESHOOTING This appendix provides information to assist troubleshooting if problems occur after completing the installation. Use Table 4 to assist in troubleshooting. Table 4 - Troubleshooting Guide Problem Cause Solution The SL30 does not power on. The unit is not getting power. No NAV audio Output disabled or set to a low level. NAV audio in Comm Mixed with Comm feature. The SL30 does not transmit. The TxKey input is not being pulled low.
Troubleshooting • • • • 48 Software versions Description of problem Efforts made to isolate the problem other installed avionics Apollo SL30 Installation Manual
Periodic Maintenance APPENDIX B - PERIODIC MAINTENANCE The SL30 unit is designed to not require any regular general maintenance except as included in this section. VOR CHECKS Even though the SL30 is designed to utilize the most state-of-the-art DSP technology and maintain a very high accuracy and repeatability record, it still must undergo the VOR accuracy checks required for IFR flight. Refer to CFR 14 paragraph 91.171. Every 30 days verify the limits of the permissible indicated bearing error.
Periodic Maintenance NOTES 50 Apollo SL30 Installation Manual
Environmental Qualifications APPENDIX C - ENVIRONMENTAL QUALIFICATIONS The Apollo SL30 has been tested to the following environmental categories per procedures defined in RTCA/DO-160C. Model: Part No: TSO No: Environmental Qualification Form Manufacturer: UPS Aviation Technologies Inc.
Environmental Qualifications The Apollo SL30 has been tested to the following environmental categories per procedures defined in RTCA/DO-160D. Model: Part No: TSO No: Conditions Environmental Qualification Form SL30 NAV portion Manufacturer: 430-6040-3XX UPS Aviation Technologies Inc. TSO-C34e, TSO-C36e, TSO-C40c, & 2345 Turner Road SE TSO-C66c Salem, Oregon 97302 Section Description of Conducted Tests Temperature and Altitude 4.0 Vibration 8.
Accessories APPENDIX D - ACCESSORIES This appendix includes information on accessory items available for the Apollo SL30. Refer to the information that is provided with those items for complete specifications and installation instructions. FROM UPS AVIATION TECHNOLOGIES Splitter/Combiner UPS Aviation Technologies Part #:.....115-0007 Manufacturer......................................Mini-Circuits Manufacturer Part #: ..........................
Accessories NOTES 54 Apollo SL30 Installation Manual
Serial Interface Specifications APPENDIX E - SERIAL INTERFACE SPECIFICATIONS This appendix includes the interface specifications for the RS-232 serial port. The RS-232 port can be used to input active and standby frequencies, and is used to input frequencies from a remote source, such as the SL50/60 and 2001 GPS. The interface format conforms to NMEA 0183 message format specifications.
Serial Interface Specifications DATA FORMAT The data format for the serial communication is: • Baud rate 9600 • Data bits 8 • Stop bits 1 • Parity none MESSAGE FORMATS All messages will conform to the NMEA 0183 proprietary message format as follows. All characters will be standard ASCII characters. No binary data characters will be used. “$” .......................... Start of message character, ASCII “$” (024h). “P” ........................... Proprietary message identifier. “MRR” ....................
Serial Interface Specifications MESSAGE DEFINITIONS INPUT MESSAGES Remote COMM Frequency Lists The following two commands work together in allowing remotely connected devices to provide COMM frequency lists associated with an airport to the SL30. The host device should first send the Remote Airport Identifier Name command (message identifier 04), followed by a sequence of Remote Frequency Input commands (message identifier 05). The list type field is used to tie the two commands together.
Serial Interface Specifications 3 = Air Traffic Frequency (ATF) 4 = Approach (APP) 5 = Arrival (ARR) 6 = Automatic Weather Observing Station (AWS) 7 = Clearance/Delivery (CLR) 8 = Common Traffic Advisory Frequency (CTF) 9 = Departure (DEP) : = Flight Service Station (FSS) ; = Remote Flight Service Station (RFS) < = Unicom (UNI) = = Mandatory Frequency (MF) > = No type specified ? = undefined mk .................
Serial Interface Specifications Message format: “V”................ Message Class. This is a VHF NAV message. “20”............... Message Identifier. vvvv............... VOR station identifier. Note that if the station identifier is less than four characters, then the trailing characters will be filled with spaces. Station Identifiers are restricted to using ASCII characters 0-9 and A-Z. mk .................
Serial Interface Specifications Message format: “V” ................ Message Class. This is a VHF NAV message. “22” ............... Message Identifier. aaaa ............... Airport identifier. Note that if the airport identifier is less than four characters, then the trailing characters will be filled with spaces. Airport Identifiers are restricted to using ASCII characters 0-9 and A-Z.
Serial Interface Specifications REQUEST DATA OUTPUT This input is used to request an output message to be sent by the SL30. Message format: “V”................ Message class. This is a VHF NAV message. “24”............... Message identifier. ii .................... Output identifier of requested message, two ASCII characters. dd .................. Message data, two encoded hex3 characters (30h-3Fh), used for specific output request. Set to “00” if not needed.
Serial Interface Specifications SET ACTIVE VOR/LOC FREQUENCY AND RECEIVER FUNCTION This message is used to set the active VOR or Localizer frequency as well as the receiver operating function. The SL30 can detect if the supplied frequency corresponds to a VOR or a Localizer channel, so this command will work for both types of NAV aids. Message format: “V” ................ Message class. This is a VHF NAV message. “27” ............... Message identifier. mk .................
Serial Interface Specifications Example message: $PMRRV28?PM This example command would set the standby VOR frequency to 111.800 MHz. This is interpreted by noting that the ASCII ‘?’ corresponds with 3Fh, +30h = 7Bh, converted to decimal equals 111 for the MHz portion. The kHz portion converts ASCII ‘P’ to 50h, -30h yields 20h, x25 kHz steps = 800 kHz.
Serial Interface Specifications SET NAV AUDIO MODE This message is used to change the current NAV audio mode. There are three possible settings for this mode. The first is “OFF”, which suppresses all of the NAV audio. The second is “IDENT”, which will suppress the voice portion of the NAV audio signal and emphasize the Morse Code station identifier. The third choice is “VOICE”, which will emphasize voice signal and suppress the Morse Code station identifier. Message format: “V” ................
Serial Interface Specifications Message format: “V”................ Message class. This is a VHF NAV message. “41”............... Message identifier. rrrr................. Range from DME station in 1/10th of a nautical mile units. The first two digits are the 10s and 1s place of the range, and the last digit is the 1/10ths place. This field may range in value from 0.0 NM (“0000”) to 999.9 NM (“9999”). If the distance from the DME station is greater than 999.9NM, the value should be encoded as “----”. sss...
Serial Interface Specifications Message format: “V” ................ Message class. This is a VHF NAV message. “21” ............... Message identifier. cc................... CDI deflection. An eight-bit value indicating the amount of deflection of the CDI needle, represented as two encoded hex4 digits. The CDI deflection is a twos complement signed integer in the range of –100 to 100. –100 indicates full left deflection, 0 indicates no deflection, and 100 indicates full right deflection. gg ................
Serial Interface Specifications Message format: “V”................ Message class. This is a VHF NAV message. “22”............... Message identifier. v .................... Valid flag. “0” = OBS invalid/not present, “V” = OBS setting is valid. ddd ................ Three digit OBS setting, in degrees. Values are in the range of “000” to “359”. Example message: $PMRRV22V170 A valid OBS setting of 170 degrees.
Serial Interface Specifications Example message: $PMRRV24V1654 A valid bearing of 165.4 degrees FROM the standby VOR station. DECODED STATION IDENTIFIER This message outputs the decoded station identifier received on the NAV voice channel. This message will be output even if the station identifier has not been decoded yet. In this case, the message will be flagged as invalid. Note that the validity of this message does not depend on the current NAV audio mode.
Serial Interface Specifications NAV RECEIVER STATUS This message is used to output the current status of the NAV receiver. It will be output upon request or whenever the status changes. Message format: “V”................ Message class. This is a VHF NAV message. “28”............... Message identifier. mk ................. Active NAV frequency: m = MHz, where m + 30h = desired MHz frequency in the range of 108 to 117 MHz.
Serial Interface Specifications Message format: “V” ................ Message class. This is a VHF NAV message. “30” ............... Message identifier. vvvv............... Software version in ASCII e..................... Engineering version flag: “R” = Released version. “E” = Engineering version. Example message: $PMRRV300103E NAV Microcontroller software is version 1.03. It is an engineering version.
Serial Interface Specifications T = Transmit enabled S = Stuck mic F = Comm failure s..................... Squelch test setting: (ASCII) 0 = automatic; 1 = test Example message: $PMRRV35G4LFR0 Active frequency is 119.100 MHz, the standby frequency is 124.550 MHz, receive function, squelch is automatic. COMM SOFTWARE VERSION This message is used to output the version string for the VHF Comm receiver software. Message format: “V”................ Message class. This is a VHF NAV message. “36”..
Serial Interface Specifications NOTES 72 Apollo SL30 Installation Manual
