Garmin GTX 327 User's Manual
Contents
1. 44 0870 8501241 FAX 44 0870 8501251 A NOTE It is the responsibility of the GTX 327 owner to obtain proper licensing before using the transponder A NOTE The coverage expected from the GTX 327 is limited to line of sight Low altitude or aircraft antenna shielding by the aircraft itself may result in reduced range Range can be improved by climbing to a higher altitude It may be possible to minimize antenna shielding by locating the antenna where dead spots are only noticed during abnormal flight attitudes GTX 327 a NT The GTX 327 transponder is powered on by pressing the STBY ALT or ON keys or by a remote avionics master switch if applicable After power on a start up page is displayed while the unit performs a self test If the unit detects an internal failure the screen displays SELF TEST FAILED Mode Selection Keys OFF Powers off the GTX 327 Pressing STBY ON or F ALT key powers on the transponder displaying the last active identification code 1 STBY Selects the standby mode When in standby mode the transponder will not reply to any interrogations ON Selects Mode A In this mode the transponder replies to interrogations as indicated by the Reply Symbol Replies do not include altitude information ALT Selects Mode A and Mode C In ALT mode the transponder replies to identification and altitude interrogations as indicated by the Reply Symbol R Replies to altitude2. A GARMIN GTX 327 Mode A C Transponder Copyright 1999 2008 GARMIN Ltd or its subsidiaries All Rights Reserved Except as expressly provided herein no part of this manual may be reproduced copied transmitted disseminated downloaded or stored in any storage medium for any purpose without the express prior written consent of GARMIN GARMIN hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to print one copy of this manual or of any revision hereto provided that such electronic or printed copy of this manual or revision must contain the complete text of this copyright notice and provided further that any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited This manual is written for software version 2 10 and is not suitable for earlier software versions Information in this document is subject to change without notice Visit the GARMIN web site www garmin com for current updates and supplemental information concerning the operation of this and other GARMIN products Software License Agreement BY USING THE GTX 327 YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT PLEASE READ THIS AGREEMENT CAREFULLY GARMIN grants you a limited license to use the software embedded in this device the Software in binary exe
3. cutable form in the normal operation of the product Title ownership rights and intellectual property rights in and to the Software remain in GARMIN You acknowledge that the Software is the property of GARMIN and is protected under the United States of America copyright laws and international copyright treaties You further acknowledge that the structure organization and code of the Software are valuable trade secrets of GARMIN and that the Software in source code form remains a valuable trade secret of GARMIN You agree not to decompile disassemble modify reverse assemble reverse engineer or reduce to human readable form the Software or any part thereof or create any derivative works based on the Software You agree not to export or re export the Software to any country in violation of the export control laws of the United States of America N CAUTION The GTX 327 should be turned off before starting or shutting down aircraft engine s A NOTE Contact a Garmin authorized dealer for software updates April 2008 Part Number 190 00187 00 Rev D Printed in USA Limited Warranty This GARMIN product is warranted to be free from defects in materials or workmanship for one year from the date of purchase Within this period GARMIN will at its sole option repair or replace any components that fail in normal use Such repairs or replacement will be made at no charge to the customer for parts or labor provided that the customer shall be responsib
4. entifying your transponder return from others on the air traffic controllers screen The word IDENT will appear in the upper left corner of the display during this time VFR Sets the transponder code to the pre programmed VFR code selected during installation configuration this is set to 1200 at the factory Pressing the VFR key again restores the previous identification code If the VFR key is pressed when disabled dependent upon installation configuration a VFR Key Disabled message appears to indicate that no operation took place FUNC Changes the page shown on the right side of the display Display includes Pressure Altitude Flight Time Count Up and Count Down timers START STOP Starts and stops the Count Up Count Down and Flight timers CRSR Initiates starting time entry for the Count Down timer and cancels transponder code entry CLR Resets the Count Up Count Down and Flight timers Cancels the previous keypress during code selection and Count Down entry Returns cursor to the fourth code digit within five seconds after entry 8 Reduces Contrast and Display Brightness when the respective fields are displayed dependent upon installation configuration and enters the number eight into the Count Down timer 9 Increases Contrast and Display Brightness when the respective fields are displayed dependent upon installation configuration and enters the number nine into the Count Down timer Function Displa
5. etermination ALT mode selection occurs when lift off is sensed When the aircraft is on the ground the transponder automatically selects and displays STBY The transponder does not respond to ATCRBS interrogations when STBY is annunciated When a delay time is set dependent upon installation configuration the GTX 327 waits the specified length of time after landing before changing to STBY mode ADS B Control GDL 90 Automatic Dependent Surveillance Broadcast ADS B technology improves situational awareness and flight safety With ADS B capabilities position velocity and heading information are automatically transmitted to other aircraft and ground stations The GTX 327 provides mode control for the optional GDL 90 Universal Access Transceiver UAT datalink The GDL 90 provides ADS B capabilities Timer Operation To operate the Flight Timer 1 2 Press the FUNC key until FLIGHT TIME is displayed If the GTX 327 Flight Timer is configured as ACCUMULATE or CLEAR the timer will begin automatically when the unit senses that the aircraft has become airborne The timer may be reset to zero at every liftoff CLEAR continue accumulating time at liftoff ACCUMULATE or may be controlled manually MANUAL If desired press START STOP to pause or restart the timer Press CLR to reset the timer to zero If the timer is configured to start automatically it will pause when the Automated Airborne Determination senses that the aircraft
6. interrogations include the standard pressure altitude received from an external altitude source which is not adjusted for barometric pressure The ALT mode may be selected in aircraft not equipped with an optional altitude encoder however the reply signal will not include altitude information Any time the function ON or ALT is selected the transponder becomes an active part of the Air Traffic Control Radar Beacon System ATCRBS The transponder also responds to interrogations from TCAS equipped aircraft Code Selection Code selection is done with eight keys 0 7 providing 4 096 active identification codes Pushing one of these keys begins the code selection sequence Digits that are not yet entered appear as dashes The new code is activated when the fourth digit is entered Pressing the CLR key moves the cursor back to the previous digit Pressing the CLR key when the cursor is on the first digit of the code or pressing the CRSR key during code entry removes the cursor and cancels data entry restoring the previous code The CLR key may be pressed up to five seconds after code entry is complete to return the cursor to the fourth digit The numbers 8 and 9 are not used for code entry only for entering a Count Down time and for adjusting contrast and display brightness K eys for Other GTX 327 Functions D ENT IDENT Pressing the IDENT key activates the Special Position Identification SPI Pulse for 18 seconds id
7. is on the ground To operate the Count Up timer Mm BB W N Press the FUNC key until COUNT UP is displayed If necessary press CLR to reset the Count Up timer to zero Press START STOP to begin counting up Press START STOP again to pause the timer Press CLR to reset the timer to zero To operate the Count Down timer 1 2 Press the FUNC key until COUNT DOWN is displayed Press CRSR and use the 0 9 keys to set the initial time All digits must be entered use the 0 key to enter leading zeros Press START STOP begin to counting down Press START STOP again to pause the timer When the Count Down timer expires the COUNT DOWN banner is replaced with a flashing EXPIRED and the time begins counting up Press CLR to reset the timer to the initial time value A GARMIN 1999 2008 Garmin Ltd or its subsidiaries Garmin International Inc 1200 East 151 Street Olathe Kansas 66062 U S A Garmin Europe Ltd Liberty House Bulls Copse Road Hounsdown Business Park Southampton SO40 ORB U K Garmin Corporation No 68 Jangshu 2 Road Shijr Taipei County Taiwan www garmin com Part Number 190 00187 00 Rev D
8. le for any transportation cost This warranty does not cover failures due to abuse misuse accident or unauthorized alteration or repairs THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED OR STATUTORY INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE STATUTORY OR OTHERWISE THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS WHICH MAY VARY FROM STATE TO STATE IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER RESULTING FROM THE USE MISUSE OR INABILITY TO USE THIS PRODUCT OR FROM DEFECTS IN THE PRODUCT Some states do not allow the exclusion of incidental or consequential damages so the above limitations may not apply to you GARMIN retains the exclusive right to repair or replace the unit or software or offer a full refund of the purchase price at its sole discretion SUCH REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY To obtain warranty service contact your local Garmin Authorized Service Center For assistance in locating a Service Center near you call Garmin Customer Service at one of the numbers shown below Garmin International Inc Garmin Europe Ltd 1200 East 151st Street Liberty House Bulls Copse Road Olathe Kansas 66062 U S A Hounsdown Business Park Phone 913 397 8200 Southampton 50240 ORB UK FAX 913 397 8282 Phone
9. y NOTE Transponder options are normally set at time of installation For changes to the GTX 327 parameters contact your Garmin authorized service center PRESSURE ALT Displays the altitude data supplied to the GTX 327 in feet hundreds of feet ie flight level or meters dependent upon installation configuration FLIGHT TIME Displays the Flight Time configured during installation as MANUAL CLEAR or ACCUMULATE see Timer Operation for details Timer is controlled by the START STOP and CLR keys when configured as Manual COUNT UP TIMER Controlled by START STOP and CLR keys COUNT DOWN TIMER Controlled by START STOP CLR and CRSR keys The initial Count Down time is entered with the 0 9 keys CONTRAST This page is only displayed if manual contrast mode is selected during installation configuration Contrast is controlled by the 8 and 9 keys DISPLAY This page is only displayed if manual backlighting mode is selected during installation configuration Backlighting is controlled by the 8 and 9 keys Altitude Trend Indicator When the PRESSURE ALT page is displayed an arrow may be displayed to the right of the altitude indicating that the altitude is increasing or decreasing One of two sizes of arrows may be displayed depending on the vertical speed rate The sensitivity of these arrows is set during transponder installation Automatic ALT STBY Mode Switching If the GTX 327 is configured with Automated Airborne D
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