User Manual 2/27/2012
GPX Pro Manual © 2012 XT Racing All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of the publisher. Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners. The publisher and the author make no claim to these trademarks.
Contents I Table of Contents Part I GPX Pro 1 1 Quick Start ................................................................................................................................... 2 2 Circuit Racing ................................................................................................................................... Mode 3 Basic Operation ..............................................................................................................................................
II GPX Pro Manual Norm al / Reverse .......................................................................................................................................................... LCD Display 52 Backlight .......................................................................................................................................................... 53 Mounting ................................................................................................................................
Contents III 6 Windows ...................................................................................................................................
1 1 GPX Pro Manual GPX Pro The GPX is a GPS-based timer and data acquisition component that operates in one of four modes: Circuit Racing, Point-to-Point Racing, Drag Racing, and Instrument Cluster. Circuit Racing mode is for tracks on which you run multiple laps – circle tracks, oval tracks, road racing tracks, etc. There is a start/finish line which you cross multiple times, and detailed lap information is stored for each lap. Up to 5 split points may be defined.
GPX Pro 1.
3 GPX Pro Manual 1) Before using your GPX for the first time, it needs to be charged overnight. The supplied USB cable can be used to charge it from your PC as well as any wall or cigarette lighter charger designed to connect to a standard mini-USB device. If you connect it to a PC, you may cancel out the installation if you'd like and the device will still charge. 2) To turn on your GPX, press the Menu button. To reboot the GPX, press all 4 buttons simultaneously.
GPX Pro 4 GPX by pressing the Menu button and you should see the main Circuit Racing screen: NOTE: if the GPX does not power up by pressing any button, try pressing all four buttons simultaneously. If this does not power up the GPX, then the internal rechargeable battery is probably discharged and will need to be charged. The GPX needs to acquire a good signal from at least 4 GPS satellites, and an EHPE (estimated horizontal position error) of less than 5.00.
5 GPX Pro Manual This screen will be the screen shown during the entire race. If this is the first tim e you ha ve ra ced a t this tra ck, the device will automatically determine that you have completed a circuit and will start timing once it has determined the geometry of the track. If you have ra ced a t this tra ck before, as soon as you cross the start/finish line, the GPX will recognize the track and start timing laps immediately.
GPX Pro 6 You move from session to session by pressing Left and Right as desired. You can at this point also press Menu to return to the main screen. To review the laps for a session, press Select from that summary screen and you will see the lap detail: Press the Left and Right arrow button to cycle through the laps for that session. Press Menu to return to the summary screen for that session.
7 GPX Pro Manual To return to the lap detail, press Menu. 1.2.2 More Details Lap Counter operation The lap counter, if used, can count either up or down. Initially, before any laps have started, it displays “-”. If set for counting up, then at the beginning of the first lap it will display “1”, and “1” will continue to be displayed during the hold time. It will keep counting up, no matter what the setting for “number of laps”.
GPX Pro 8 finish line to be, and set the start/finish line via the GPX’s menu system (Track options, Set start/ finish line of a new track). This point will now form the basis for the start/finish line when you start racing the track. Please note that you should be no more than about 50 feet of where your vehicle will cross the start/finish line in order for the GPX to recognize it while you are racing. At any time, you may move the start/finish line for a track via the menu system.
9 GPX Pro Manual TRACK 2” and you can then change it to “MYTRACK CCW”. As far as GPX is concerned, these are two different tracks. Each time you race from now on, it will determine which direction you are racing, and pick the correct track accordingly. If you create the start/finish point manually via the menu system before racing for the first time, it works identically – the first time you race, after the session is over, name the track appropriately (e.g., “CW” or “CCW”).
GPX Pro 1.2.
11 GPX Pro Manual physically going to the start/finish line to register the GPS coordinate Change start/finish (select a track) - allows you to move the start/finish line Maintain splits (select a track) Add split – adds a new split for this track. There is a limit of 5 splits.
GPX Pro 12 Tach RPM white (shift light) – the “redline” Shift light style - what happens when you exceed the "redline" White LEDs blink White LEDs solid All LEDs blink Tach Display Minimum RPM – this is the minimum RPM on the Tach that displays on the LCD bar graph Tach Display Maximum RPM – this is the maximum RPM on the Tach that displays on the LCD bar graph LCD Display Options Backlight on/off control – control over the LCD panel backlight Off – no backlight On Activity – turns on for about 10 seconds
13 GPX Pro Manual Delete last viewed session (for deleting the last session you viewed in the GPX) (confirmation required) Delete a track and its sessions - see section on File Maintenance (confirmation required) Delete all sessions for a track - see section on File Maintenance (confirmation required) Delete all sessions - see section on File Maintenance (confirmation required) Delete all tracks and sessions -- see section on File Maintenance (confirmation required) Delete everyting (factory reset) – retu
GPX Pro 14 Fahrenheit or Celsius -- specify the temperature scale Fahrenheit Celsius Latitude/longitude format - display and data entry method for coordinates N34 13.7326 -- degrees, minutes, fractional minutes N34.
15 GPX Pro Manual section on Profiles) 1.3 Point-to-Point Racing Mode Point-to-Point Racing mode is for races that start at a starting point and end at a finishing point – rally races, for example. Up to 5 split points may be defined. 1.3.1 Basic Operation Unlike Circuit Mode, in Point-to-Point mode, the GPX cannot determine the start and finish for the race. You must “create” a new track, then define the start and finish point. (And optionally define split points.
GPX Pro 16 To start the race, go into the menu system, go to Select a track to start race, and select the track. There are two methods to start a point-to-point race --Standing start and Running start. Use standing start when a race starter starts you. (For standing start, the "start point" of the race is not actually used -- it assumes you are starting from the correct spot.
17 1.3.2 GPX Pro Manual More Details Direct entry of start/finish/split coordinates There is another method of entering the points for a point-to-point track -- direct entry of GPS coordinates. To do this, you must obtain the latitude and longitude of the points. For example, the website http://itouchmap.com/latlong.html is one such source. Another possibility is on maps.google.com, you can right-click and select "What's here?" to determine the GPS coordinates.
GPX Pro 18 Distance to next split and finish The default spinner screen for point-to-point shows the distance to the next split, and the distance to the finish. These are straight-line distances "as the crow flies". Accelerometer sensitivity Depending on the mounting of the GPX and the amount of vehicle vibration, you may need to adjust the acceleration sensitivity when doing a standing start. The menu item Acceleration sensitivity allows you to change it.
19 1.3.3 GPX Pro Manual Menus Select a track to start a race (select from list of tracks) - when you select the track, the race is ready to start Race start method Running start - you start behind the starting line and "fly by" the start line Standing start - a race "starter" starts you.
GPX Pro 20 Set finish point Set split # 1 point ...
21 GPX Pro Manual Tach Display Maximum RPM – this is the maximum RPM on the Tach that displays on the LCD graph LCD Display Options Backlight on/off control – control over the LCD panel backlight Off – no backlight On Activity – turns on for about 10 seconds after every keypress, and lap or split completed Always ON – always on (consumes more battery power) Backlight brightness – a value from 1-10 controlling the brightness (higher values use more battery power!) LCD contrast – adjusts the contrast of the
GPX Pro Delete all session -- see section on File Maintenance (confirmation required) Delete all tracks and sessions -- see section on File Maintenance (confirmation required) Delete everyting (factory reset) – returns GPX to "out-of-the-box" state (confirmation required) Display Formats and Units Time Format – specifies how times will be displayed 16:26 style 4:26 PM style Date format – specifies how dates will be displayed 4/23/2008 – month/day/year 2008/04/23 – year/month dayt RPM format – specifies how
23 GPX Pro Manual Miscellaneous Odometer/hour meters Show distance/time meters -- displays their current values Clear distance/time meter 1 Clear distance/time meter 2 Set local time – sets the local time as a variation from UTC (Greenwhich Mean Time) Personalization -- owner information Set personalization line 1 Set personalization line 2 Clear personalization line 1 Clear personalization line 2 Show versions and info – displays diagnostic information about the GPX Device mode and profiles Device mode -
GPX Pro 1.4.1 24 Basic Operation In Drag Racing mode, you can select from the following types of drag race via the menu item Type of drag race: Distance: 1/8 mile; ¼ mile; 1 mile; 1000 feet Top speed: 0-30 mph; 0-60 mph; 0-100 mph; 0-60 km/h; 0-80 km/h; 0-100 km/h; 0-120 km/ h; 0-160 km/h; 0-200 km/h; 0-300 km/h To top speed and stop: 0-30-0 mph; 0-60-0 mph; 0-100-0 mph; 0-60-0 km/h; 0-80-0 km/h; 0100-0 km/h; 0-120-0 km/h “Roll-on” (e.g.
25 GPX Pro Manual g., 60 if the setting is for a 60-100 roll-on), and will revert back to normal when you hit the top speed. When the drag is completed, its summary screen is shown: To review your drag races, from the main screen press the Left and Right arrows to cycle through the races. Press Menu to return to the main screen. When you start a drag session, if you change your mind, press any button to terminate it.
GPX Pro 1.4.
27 GPX Pro Manual 0-160 km/h 0-200 km/h 0-300 km/h 0-60-0 km/h 0-100-0 km/h 0-120-0 km/h Drag race starting method Standing start - start whenever you're ready Tree lights -- start when the LEDs go green (measures reaction time or foul) (not applicable for roll-on) Roll-on start speed This will be in either miles/hour or kilometers/hour depending on the speed setting in Display formats and units Roll-on stop speed This will be in either miles/hour or kilometers/hour depending on the speed setting in Displ
GPX Pro 28 Off – lights will not be used for anything 1 LED at a time – only one LED lights up at a time All LEDs – more LEDs light up at increasing RPMs (consumes more battery power!) Thumbs up/down (previous lap) – lights will not come on in drag mode Thumbs up/down (best lap) - lights will not come on in drag mode Tach brightness – a setting from 1-10 of increasing brightness of the tach lights Tach RPM Green – the minimum RPM that the green LEDs come on Tach Yellow – the RPM at which the yellow LEDs s
29 GPX Pro Manual Normal or reverse display Normal display – Black characters on a white background Reverse display – White characters on a black background Power-Off Options Power off now -- selecting this immediately turns off the GPX Power-off timeout (battery powered) – when running on internal battery, after this many minutes of no activity, the GPX will turn off Power-off timeout (12V powered) - when connected to a 12V source, GPX will turn off after this many minutes of no activity File Maintenance
GPX Pro Date format – specifies how dates will be displayed 4/23/2008 – month/day/year 2008/04/23 – year/month dayt RPM format – specifies how RPMs will be displayed 11200 – full value 11.2K – in K Miles per hour or kilometers per hour MPH – distances and speeds based on miles KPH – distances and speeds based on kilometers Fahrenheit or Celsius -- specify the temperature scale Fahrenheit Celsius Latitude/longitude format - display and data entry method for coordinates N34 13.
31 GPX Pro Manual Clear personalization line 2 Show versions and info – displays diagnostic information about the GPX Device mode and profiles Device mode - changes the basic racing mode of the GPX Circuit Racing – races that occur repetitively over the same course (circle, oval, road racing) Point-to-Point Racing – racing from a start point to a finish point (rally) Drag racing – 0-60, 0-60-0, ¼ mile, etc.
GPX Pro 32 highlighted: Select “selects” that option. It either records a menu setting, or goes to another menu. When you are several levels deep in the menus, the previous selections show on the top of the screen, and the current choices are indented the furthest: Menu “backs up”. If you are at the top level of the menu system, it returns to the main screen.
33 1.7 GPX Pro Manual Switching Racing Modes To switch racing modes (for example, you are in Circuit Racing and you want to go to Drag Racing), from the main screen, press Menu to go into the menu system. Use the arrows to highlight the last menu item (Device mode and profiles), and press Select. Press Select again on Device mode. Use the Left and Right arrows until the mode you wish to change to is highlighted, then press Select. The GPX will restart in the selected mode. 1.
GPX Pro 34 charged.) So that the GPX does not drain the vehicle’s battery when the vehicle is turned off, it is preferable to connect the 12V power wire to the GPX via a switched power point so that when the vehicle is turned off, the 12V is not supplied to the GPX. If this is not feasible, you might consider disconnecting CABLE A when you are done racing. Analog vs. Digital Signals Analog signals typically have a range of from 0 to 5 volts. These signals generally can have any value in that range.
35 GPX Pro Manual Wiring Summary – CABLE “A” Black wire Connect to vehicle’s negative battery terminal Red wire Connect to (preferably switched) source of 12V (positive battery terminal) Brown wire Analog/digital input #1 Yellow wire Analog/digital input #2 Green wire Analog/digital input #3 Blue wire Analog/digital input #4 Wiring Summary – CABLE “B” - GPX Pro 8 Only 1.8.1.
GPX Pro 1.8.1.2 36 Wiring with Scotchlok Connectors Included with your GPX Pro is a set of Scotchlok connectors that can be pressed onto your wires with no stripping or soldering required. Supplied initially are 6 of these connectors in order to begin wiring your vehicle to collect data. More Scotchloks and color-coded wiring can be purchased in our DAQ Wire Kits at www.xtracing.com. All wire used with Scotchlok connectors must be 22-16 AWG. We have found that most vehicles use wiring within this range.
37 1.8.2 GPX Pro Manual Basic DAQ Setup All DAQ setup is performed via the menu item Data acquisition setup and parameters from the main menu: "Channels 1-8" (or 1-4 in the case of the GPX-4) refer to the external channels on Cables A/B: The "internal channels" are available in both the GPX Pro 4/8, and are fixed functions in the GPX: The first column is the channel number and name of that input. Each channel may independently be enabled (data will be captured) or disabled.
GPX Pro 38 properly calibrated. For example, you can still see RPM on your main screen even if it is not being captured. Each channel has an individually configurable capture rate (see below). Depending on the type of input, from a minimum of 5 samples per second (Hz) to a maximum of 250 samples per second may be captured. The Left and Right arrows move from item to item. When you are positioned at an item you wish to modify, press Select. (As usual, press Menu to exit out of this screen.
39 GPX Pro Manual Pressing Select on an Hz entry allows you to change the sampling rate for that input. You should not record data at a higher sample rate than you need - higher sampling rates use up the memory more quickly in the GPX and result in less time that can be stored before data needs to be deleted. Press Select on an Enabled entry allows you to change an input from enabled to disabled and vice versa. When you press Select on a Cal entry, you may then calibrate or uncalibrate that input.
GPX Pro 40 which is a pulsed, binary logic signal which is typically generated by the vehicle’s engine control unit/module (ECU or ECM). Most fuel-injected engines will have such a signal available. The signal can be as low as a 3.3-volt peak-to-peak signal, or as high as a 12-V peak-to-peak signal. You might also use a one of the fuel-injector outputs of the ECU as the RPM input. You may need to have the reported rpm either multiplied or divided by 2, 3, or 4.
41 GPX Pro Manual temperatures in order for them to display an accurate temperature reading. The GPX allows you to enter up to 10 different calibration points for each temperature input. If you make a mistake, you can either delete all calibration points, or you can delete one of the points you've calibrated and do it again. For best results, you need a small, inexpensive, non-contact infrared temperature "gun". You can purchase one from www.xtracing.com.
GPX Pro 42 Using the arrows, select the temperature; when the "gun" reads that temperature, press Select: Repeat this up to 10 times. You should try to get a pretty nice distribution of temperatures from the expected lowest to expected highest temperature. Temperature channels can have alarms associated with them. See the section on Alarms. 1.8.3.5 Gear Gear Vehicles that have a gear sensor (e.g., many fuel-injected motorcycles) have a gear sensor which can be used to determine gear.
43 GPX Pro Manual Be especia lly ca reful when doing this ca libra tion – since it requires you to rea d the prom pts a nd press the Select button a t the a ppropria te tim e, while you a re opera ting the vehicle, you need to be extrem ely ca reful during this procedure a nd pa y close a ttention to the tra ck a nd other tra ffic tha t you m ig ht encounter.
GPX Pro 44 NOTE: When you are going below about 3mph (5kph), the gear will be reported as "N" when utilizing rpm/speed ratio to report gear. There is one particular advantage to using the rpm/speed ratio for capturing gears (even if you have a gear sensor), if you are already capturing RPM: using this method does not "use up" an analog input.
45 1.8.3.6 GPX Pro Manual Acceleration Your GPX is equipped with a sensitive 3-axis accelerometer. This, combined with GPS data, allows data acquisition of G forces involved with acceleration/braking ("longitudinal" acceleration/ deceleration), and turning ("lateral" Gs). It is also used for accurate determination of the start of some types of Point-to-point and Drag races. In GPStudio, longitudinal Gs are as follows: >= 0G (positive numbers) = acceleration; < 0G (negative numbers) = deceleration.
GPX Pro 46 pickup spots should be as evenly spaced around the wheel as possible. The pickup must output a digital signal of at least 0-5V amplitude, up to 0-12V amplitude. The GPX supports from 1 to 99 pickup points per wheel speed input. In addition, you must enter the circumference of the tire, in millimeters. The more accurate you can determine that circumference, the more accurate the results will be. 1.8.3.8 Suspension The GPX can acquire suspension data on any of the analog channels.
47 GPX Pro Manual Make sure you choose a potentiometer that has m ore tra vel than can occur when it is mounted. Otherwise, the vehicle may compress or extend it beyond its physical limits and will probably destroy it. There is an optional calibration setting, called sag, which you may calibrate if you wish. This calibration point represents the "at rest" (neutral) position of the slider.
GPX Pro 1.8.4.1 48 0-100% A 0-100% input is an input which gets calibrated at 0% (its minimum value) and 100% (its maximum value). This is similar to throttle position. See that section for more information. 1.8.4.2 Zero-based A zero-based input is a generic input which has a base value (0 point). Only that point gets calibrated.
49 GPX Pro Manual So, you may use a linear analog input for this device. You are prompted for two calibration points -- at point one, you input the voltage (0.5V) and output value (0), and at point two, you do the same (voltage 3.7, output value 2000). That's all there is to it. You may now acquire data on this channel and the "readout" will be the pressure in psi. 1.8.5 Alarms Temperature and switch inputs may have alarm(s) associated with them.
GPX Pro 50 XT Racing sensors do not require calibration. You may “de-calibrate” (i.e., remove calibration information for ) a channel. The primary use for this would probably be for a temperature-capture channel, where many calibration points are set. So, for example, if a mistake is made in the calibration for a temperature channel, since an individual temperature-point cannot be deleted, you must delete all calibration information for that channel, then re-calibrate.
51 GPX Pro Manual 1.10.1 Tach LCD display and LED/Shift lights Tach LCD display If you are connected to an RPM input, you have several different ways of displaying the current RPM. On any main screen or running ("spinner") screen, you may display the RPM as text (e.g., 11200 or 11.2K). You can of course customize the size and position of this text via GPStudio. Also, on any main or running screen, you may display the RPM as a graphical "tach bar" on the LCD.
GPX Pro 52 LED lights will display. Similarly, the menu item Tach RPM yellow is the RPM at which the yellow LEDs turn on, and Tach RPM red is the RPM at which the red LEDs turn on. You should set green at a lower RPM than yellow, and yellow at a lower RPM than red. The last two LEDs are white, and you specify the RPM at which the white LEDs come on ("shift indication"). The RPM at which white comes on should be greater than red.
53 GPX Pro Manual 1.10.3 Backlight When enabled, the LCD backlight brightness can be selected from 1 (dim) to 10 (bright). Since it uses a considerable amount of power, do not use more backlighting than necessary when running off the internal battery. Backlighting reduces the length of time the battery will hold its charge. Select the backlight options from the LCD display options menu: 1.10.4 Mounting The 8 tach leds are quite bright but highly directional.
GPX Pro 54 1.10.5 Time and Time Zones GPS reports its time as UTC time (which is essentially Greenwich Mean time). Your local time will probably vary from UTC time by a number of hours. For example, during non-Daylight-Saving time in the U.S., the eastern time zone is UTC time – 5 hours. (There are some places where the difference may be in 30- or even 15-minute increments – for example, Nepal is UTC + 5:45.) The GPX has a menu item which allows setting the local time.
55 GPX Pro Manual A full charge takes about 8 hours. When connected to USB, the GPX will not automatically power down. You may use any USB charging device (e.g., cigarette lighter, plug-in wall transformer) to charge the GPX that is capable of supplying about 300 milliamps (ma) of current. On the default main screen, you will see a battery status indicator.
GPX Pro 56 stored, based on the currently selected data acquisition settings, before the GPX memory becomes full. It also shows the approximate percentage of free space in the GPX -- as that number decreases toward 0, the GPS is becoming full. When either the total amount of memory becomes close to getting full, or the number of races nears the limit of storage, a message will pop up indicating that you should delete races (sessions) before continuing.
57 GPX Pro Manual track or loop. The GPX will actually start storing data, but that data will be automatically deleted when you go less than “stopping speed”, or if you travel more than 15 miles. 1.11 Introduction to GPS The Global Positioning System consists of a constellation of satellites orbiting the earth. There are currently 24+ such satellites in orbit.
GPX Pro 58 the GPX is in the middle of a file operation, there is a possibility that the file system could become corrupt. You may need to adjust the LCD contrast for optimal display under conditions of very high and very low ambient temperatures If you get a warning about "file system full" or "low on directory space", you need to clear out some sessions in your GPX before continuing. If you want to save those sessions before deleting them, connect up to GPStudio and download those sessions to your PC.
59 2 GPX Pro Manual XTStudio A perfect companion to the myriad functions in the GPX, XTStudio allows you to take the data gathered on track and analyze it in detail on your Windows enabled PC. Review your sessions in real time with your data streaming in graphs or on gauges to help isolate any trouble areas you may have on the track. Watch as you let off the throttle and your RPMs fall heading into a turn and compare your turn entry with your other entries into that same turn.
XTStudio 60 The other option is only used if the device you are connecting is a replacement (due to buying a new one or sometimes from and authorized repair with XT Racing). In this case, you will choose the existing database entry that this device is replacing, then click Replace an existing device.
61 2.1.2 GPX Pro Manual Downloading a device After the device is connected, the download sessions dialog will appear if there are sessions on the device that need to be downloaded to the database.
XTStudio 62 The download sessions dialog shows the profiles that contain sessions to download, the tracks and the sessions themselves. Simply click on each one to select the sessions you want to download or choose Select All for a quick way to download everything. If you want to attach a comment to the downloaded sessions then enter it into the comment text box and the comment will be added to all of the sessions downloaded at that time. When you are ready click Download and the process will begin.
63 GPX Pro Manual Open database file and choose the old gpstudio.dat file from the file dialog (usually in My Document\GPStudio). After XTStudio successfully detects the data file as a GPStudio database you can click Next to specify the destination profile to import the sessions.
XTStudio 64 If there are existing profiles already present in XTStudio then you can attach the imported sessions to that profile by choosing Import data to existing profile. If there are no profiles present in the XTStudio database or you want to create a new profile for the imported sessions then choose Import data into new profile. If you choose to import the data into an existing profile then you will be prompted for the profile to add the sessions to.
65 GPX Pro Manual Once the import is complete all of the sessions will appear in the session tree under the new (or existing) profile. 2.1.4 Importing your friend's sessions XTStudio allows you to share sessions with your friends. By exporting sessions from your database and then emailing or posting them to a forum, your friends can then import the session into their database and compare all of the available data.
XTStudio 66 To import a session that someone sent you, you can either double-click on the file from Windows Explorer or if XTStudio is already open then you can use the menu item Home -> Import session. An open file dialog will appear. Browse to the received file and click open and the session will be imported and be available from the session tree. 2.1.5 Backup your data Backing up your XTStudio data is very simple.
67 GPX Pro Manual Circuit sessions For circuit tracks, each session you have raced will be displayed under the track name, and under each session there will be an entry for each lap in that session. In addition to the laps for the session there are two entries for pre-roll and post-roll. These are partial laps that occur before the start/finish line and after the last lap. The post roll can be useful for analyzing data after a crash or other reason for not completing a race.
XTStudio 2.2.2 68 Session management Items in the session tree can be right-clicked on to activate the options for that item. Each item in the session tree will have different options in the menu depending on what is available for that item. Profile Options Right clicking on a profile will allow you to access the device settings page for that device (if you have access to that device).
69 GPX Pro Manual Export session for Tra ckV ision - this allows you to export your session for use with TrackVision software to synchronize your data with a video 2.2.3 Track filter The session track filter allows you to hide certain tracks from the session tree without deleting them from your sessions database. To start filtering out tracks, click on the track filter menu item at the top of the session bar. You can then use the options listed to add and remove tracks from display.
XTStudio 70 and choose the date you want, or just type the date into the box. 2.3 Input configuration All data channels can be configured through the Inputs menu on the main menu. All of the inputs found in the XTStudio database will be displayed here. Each input has a submenu that has the configuration options for that input. 2.3.1 Input range With the input menu, the minimum value and maximum value of a channel can be forced to specific values.
71 GPX Pro Manual The inputs can be automatically set to the full range by clicking on the Use full input range option. By turning this option off you will have access to the number boxes that will allow you to specify the minimum and maximum value for the input. 2.4 Analyzing sessions The main feature of XTStudio is the analysis of your sessions. Analysis of laps or sessions is done via the five major analysis components of XTStudio. Controller bar Track map Data bar Graph bar Gauge bar 2.4.
XTStudio 72 Multiple track maps as tab items Track maps can be added by choosing Window -> Add Track Map. Add another track map window 2.4.1.1 Overview To start your analysis, simply drag (or double-click on it) a lap or session from the session tree to the track map, and that item will be added to the comparison.
73 GPX Pro Manual Controller menu from main menu Controller menu access from right-click Track view items are used to tell how to draw the track map: N orm a l mode just displays the track map in the corresponding comparison item color. GPS qua lity of service displays a varying color from red (0%) to green (100%). This display can show you areas of the track where your GPS signal quality is low. A low signal quality could mean that you need the GPX Pro external antenna.
XTStudio 74 click on the track map to move the location to the nearest track point. In addition to the manual ways to move around the track, you can also automatically run the track by clicking the Play button in the top menu bar. The speed of the playback can be increased or decreased with the View -> Playback speed menu item. 2.4.2 Track map The track map window is in the tab area of XTStudio and is where the current track map is displayed based on the GPS data collected.
75 GPX Pro Manual The dots on the track indicate where on the track you were at the given controller distance. 2.4.3 Graph bar The graph bar will graph data values captured with the GPX Pro. With the ability to plot multiple laps and zoom in and out on the data, the graph bar provides a powerful tool for race analysis. In addition, since you can add multiple graph bars to your XTStudio window, graphing multiple variables at once is possible. The graph bar is split up into four areas.
XTStudio 76 The value graph is the actual graph of the data over time or distance depending on your controller setting. The wider center line shows the current system time. The additional vertical lines span out as a specific time or distance plus or minus from the current time. So, moving the system time either manually or through the replay race function will pan the graph across the center line. Finally, at the far right is the zoom bar for zooming in and out on the graphed data.
77 GPX Pro Manual input. If you have acceleration turned on and calibrated, then the acceleration data will appear as two entries in the list. A ccel la t - the latitudinal acceleration, which is the acceleration to the right or left of the direction you were traveling; in other words, this is the turning acceleration A ccel long - the longitudinal acceleration, which is the acceleration in the direction you were traveling; in other words, this is the braking or throttle acceleration 2.4.3.
XTStudio 2.4.3.3 78 Graph delta to master The graph bar has the ability to graph the data as a delta to the master controller item. Remember, the master controller item is the item that is bold and underlined. The graph will plot the difference between the current item and the master item for the input. This mode provides you a nice overview of the exact places where you were slower on one lap versus another, for example. 2.4.3.
79 2.4.4 GPX Pro Manual Data bar The data bar displays detailed information for each comparison item at the current system time. The information includes the current time, current distance, lap time, lap distance. To add a data bar to the screen use the menu item Window -> Add data bar If data acquisition channels are connected and calibrated, then each of the DAQ channels will be displayed.
XTStudio 80 The data bar's display can be customized through the Data menu on the main menu or by rightclicking on the data bar window. Each DAQ channel can be individually turned on and off through this menu to access only the channels you are interested in. In addition the minimum, maximum and delta values can be display by turning on and off those options in the menu.
81 2.4.4.1 GPX Pro Manual Options The track maps options are found under the View menu on the controller bar. There are multiple options available to control the track map display.
XTStudio 82 Track zoom Setting the track zoom allows you to display the zoomed track in the window. By using this option only part of the track around the current system time will be displayed, and as the controller distance changes the display will be panned to keep the dots in the window.
83 GPX Pro Manual window. This is used when you want to compare track map views from one lap to another. For example, to compare where on the track you started accelerating in one lap versus another, simply increase the offset to separate the display. For small tracks, or tracks with tight turns to large, an offset can result in a display that overlaps itself, so set the offset carefully for accurate analysis.
XTStudio Show track map legend This option will show the keyboard shortcut keys associated with the track map window. Show track map comments This option will display the track map comments in the upper left of the track map screen.
85 2.4.5 GPX Pro Manual Gauge bar The gauge bar displays a series of circular gauges where the current data values are shown for a given data channel. Multiple gauge bars can be added to XTStudio and multiple gauges can be added to a single gauge bar. Each gauge will have one needle for each comparison item where, again, the color corresponds to the color in the controller bar. You can add a new gauge to the gauge bar by right-clicking in the blank area to the right or below the gauges.
XTStudio 86 on the gauge and choose the option you want. Gauge bars can be added to the screen through the Window -> Add gauge bar menu. 2.5 Designing screens With XTStudio, you not only have a powerful lap analysis tool but also a way to customize the GPX and truly make it your own. Using the screen designer in XTStudio, you can customize any and all of the GPX screens with your own boxes, lines, data acquisition value...
87 GPX Pro Manual Starting the screen designer for the first time will bring up the designer with no layout file loaded, if you have already started designing screens, then the designer will open the last layout you were editing. The designer window is split up into two sections, the screen display on the left and the object editor on the right.
XTStudio 2.5.2 88 Menus The file menu allows you to maintain your layout files. The file menu is also where you can send the opened layout to the GPX Pro (only available if the GPX Pro is currently connected to the computer) or you import certain screens from a friend's layout file. The insert menu allows you to add the object types to the current screen layout. The screen menu is used to switch the active mode or screen type.
89 GPX Pro Manual The view menu allows you to switch the display value of the screen from the sample values to the maximum length values. Maximum length value display is used to make sure that your text fields are wide enough to handle all screen variable values. 2.5.3 Text objects The GPX Pro text object is the most powerful object for designing screens. The text object allows you to display all of the data values that are available in the GPX Pro timer.
XTStudio 90 interval time is specified in milliseconds so 1000 is 1 second, 2000 is 2 seconds, etc. The rotating text fields specify the values to display in the text box, again if you specify more than one text value then the GPX Pro timer will rotate between the values at the specified update interval. Regular text is entered by just typing in the text you want to display; however, it is the screen variables that really give the text object its power.
91 2.5.4 GPX Pro Manual Images The image object is used to insert an image on your screen. Again, the update interval specifies how fast the image rotates if you specify more than one image. 2.5.5 Indicators There are two indicators available. The battery graphic and the GPS antenna graphic. Simply choose which you want to display.
XTStudio 2.5.6 92 Boxes The box object is used to draw a box on the screen. You can specify the width, height and thickness of the box. The bar at the bottom is used to control the line color of the box. 2.5.7 Lap spinner The lap spinner is the displayed current running lap or race time. There are two sizes of spinners available, large or small. 2.5.8 Tachometer graph The tachometer graph is used to display the tach graph for your current RPM. You can specify the width and height of the graph. 2.
93 GPX Pro Manual Windows XP To begin the installation of the GPX Pro driver on Windows XP simply plug the GPX Pro into your computer's USB port. After the device is connected, the Found New Hardware Wizard will appear. Choose "No, not this time" when the wizard asks you to connect to Windows Update to search for the driver. Then click Next.
XTStudio 94 In the "Include this location in the search" box enter "C:\Program Files\XT Racing\XTStudio\Driver". Then click Next. Again, it is possible that you will need to provide the original Windows CD if prompted. After the driver installation is complete, if XTStudio is running it will need to be restarted for the communication to proceed. Windows Vista To begin the installation of the GPX Pro driver on Windows Vista simply plug the GPX Pro into your computer's USB port.
95 GPX Pro Manual If this is the case, then choose "Browse my computer for driver software" In the "Search for driver software in this location" box enter "C:\Program Files\XT Racing\XTStudio\Driver". Then click Next. This will install the GPX Pro driver.
XTStudio © 2012 XT Racing 96
