Trig Avionics Limited 00675 User Manual
EN
includes a gear squat switch. Aircraft installations that include a gear
squat switch will automatically select GND on landing.
squat switch will automatically select GND on landing.
Push Buttons
IDT
IDT
Press the IDT button when ATC instructs you to “Ident” or
“Squawk Ident”. This activates the SPI pulse in the
transponder replies for 18 seconds. IDT will appear in the
display.
“Squawk Ident”. This activates the SPI pulse in the
transponder replies for 18 seconds. IDT will appear in the
display.
FN
Pressing the FUNC button provides access to changing
the Flight ID.
the Flight ID.
VFR
Pressing the VFR button sets the transponder to the pre-
programmed conspicuity code. Pressing the button again
restores the previous squawk code.
programmed conspicuity code. Pressing the button again
restores the previous squawk code.
ENT
The ENT button enters a digit in the code selector.
Code Selector Knob
The right hand knob is used to set squawk codes and the Flight ID.
The FN button selects which will be updated. Turning the knob will
highlight the first digit on the display, and the digit can be changed as
required. Press the ENT button to advance to the next digit. When
ENT is pressed on the last digit, the new squawk code or Flight ID will
replace the previous value. If the code entry is not completed within 7
seconds, the changes are ignored and the previous code restored.
The right hand knob is used to set squawk codes and the Flight ID.
The FN button selects which will be updated. Turning the knob will
highlight the first digit on the display, and the digit can be changed as
required. Press the ENT button to advance to the next digit. When
ENT is pressed on the last digit, the new squawk code or Flight ID will
replace the previous value. If the code entry is not completed within 7
seconds, the changes are ignored and the previous code restored.
1200
VFR code in the USA
7000
VFR code commonly used in Europe.
7500 Hijack
code
7600
Loss of communications
7700 Emergency
code
The Flight ID should correspond to the aircraft call sign entered on
your flight plan. If no flight plan is active, the aircraft registration
should be used as your Flight ID. Use only letters and digits. If the
Flight ID is less than 8 characters long, entering a blank character will
end it.
your flight plan. If no flight plan is active, the aircraft registration
should be used as your Flight ID. Use only letters and digits. If the
Flight ID is less than 8 characters long, entering a blank character will
end it.
Altitude Encoder Warm Up
The built in altitude encoder uses a sensor that is temperature
dependent. A small internal heater circuit keeps the sensor at the
correct temperature. When the ambient temperature is below 0C
there may be a delay between switching on the transponder and
seeing an altitude reported. In very cold weather this delay can be
several minutes. You should always switch on the transponder
The built in altitude encoder uses a sensor that is temperature
dependent. A small internal heater circuit keeps the sensor at the
correct temperature. When the ambient temperature is below 0C
there may be a delay between switching on the transponder and
seeing an altitude reported. In very cold weather this delay can be
several minutes. You should always switch on the transponder
2