User manual GARMIN GTX 328 Document

[. . . ] 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. CAUTION: The GTX 328 should be turned off before starting or shutting down aircraft engine(s). NOTE: Contact a Garmin dealer for software updates. January 2007 Part Number 190-00420-03 Rev. A Printed in USA Limited Warranty This Garmin product is warranted to be free from defects in materials or workmanship for two years from the date of purchase. [. . . ] 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. 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. Press the CLR Key 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 contrast and display brightness. Important Codes: 1200 The VFR code for any altitude in the US (Refer to ICAO standards elsewhere) 7000 The VFR code commonly used in Europe (Refer to ICAO standards) 7500 Hijack code (Aircraft is subject to unlawful interference) 7600 Loss of communications 7700 Emergency 7777 Military interceptor operations (Never squawk this code) 0000 Military use Avoid selecting codes 0000, 7500, and all codes in the 7600-7777 range. An aircraft's transponder code is used for ATC tracking purposes, therefore exercise care when making routine code changes! Keys for Other GTX 328 Functions IDENT Pressing the IDENT Key activates the Special Position Identification (SPI) Pulse for 18 seconds, identifying your transponder return from others on the air traffic controller's screen. The word `IDENT' will appear in the upper left corner of the display while the IDENT mode is active. VFR Sets the transponder code to the pre-programmed VFR code selected in Configuration Mode (this is set to 7000 at the factory). If the VFR Key is disabled (dependent upon installation configuration) a `VFR Key Disabled' message appears, to indicate that no operation took place. Display data includes Pressure Altitude, Flight Time, Altitude Monitor, Count Up and Count Down timers. Also displays Outside Air Temperature, Density Altitude, Contrast, and Display (dependent upon installation configuration). START/STOP Starts and stops the Altitude Monitor, Count Up, Count Down and Flight timers. CRSR Initiates starting time entry for the Count Down timer and cancels transponder code entry. 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 Display PRESSURE ALT: Displays the altitude data supplied to the GTX 328 in feet, hundreds of feet (i. e. , flight level), or meters, (dependent upon installation configuration. [. . . ] After the complete FLT ID is entered, press the CRSR Key to move the cursor to the "OK?" field. When FLT ID entry is complete the transponder begins normal operation. If an error is made while entering a FLT ID, press the CLR Key to back up to any point, including highlighting the "OK?" field. [. . . ]