Section 913
FILSER TRT 800 Transponder
913 - 6
Page Date: 15. December 2005
Pilot´s Operating Handbook
EXTRA 300L
7700 Emergency
7777 Military interceptor operations (Never squawk this code)
0000 Military use (Not enterable)
Care should be taken not to select the code 7500 and all codes in the 7600-7777 range, which trigger
special indicators in automated facilities. Only the code 7500 will be decoded as the hijack code.
An aircraft’s transponder code (if available) is utilized to enhance the tracking capabilities of the
ATC facility, therefore care should be taken when making routine code changes.
STANDBY MODE
The standby mode is activated by pressing the MODE button once. This sets '
STBY
' in the mode
indicator field. The transponder will now only reply to direct addressed Mode S interogations. The
squitter stays active at a lower rate.
ALTITUDE OFF
Switching off altitude reporting will be necessary if the ATC controller requests it.
For switching off altitude reporting the
MODE
button has to be pressed until
'A-S'
is displayed.
The altitude display shows
'FL ——'
to indicate that the altitude reporting is not active. Now the
transponder will reply on Mode C interrogations with Mode C frames only and Mode S
interrogations with FL000 (= 0000ft) instead of the actual altitude.
IDENT
Pressing the
IDT
push button causes the special position identification pulse (SPI) to be appended
to the Mode A replies for a period of 18 seconds and sets '
IDT
' in the display.
LOW POWER SUPPLY
If the power supply to the transponder drops below 10 Volts, the flag '
BAT
' appears and starts
flashing.
DISPLAYING AIRCRAFT ADDRESS AND FLIGHT IDENTIFICATION
By pressing, the
FID
button for less than 3 seconds, while the unit is in Stanby-Mode, the left side
of the bottom line will show the aircrafgt address.
N O T E
Only an authorized service station is allowed to enter or change the ICAO aircraft address.
If you do not have the ICAO aircraft address. Please refer to your national aviation authority
to apply for your aircraft address.
Summary of Contents for 300L
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