6. Checking after installation
A. General
After the installation, check the transponder to ensure satisfactory operation
of the unit. The transmit frequency is to be checked and to be adjusted if
necessary.
B. Checking procedure
Carry out post installation check following the description of section 2./B. uti-
lizing a ramp test set.
C. Test and adjustment of transmit frequency
Set code 0000 on the transponder and mode A interrogation on the ramp test
set. Check transmit frequency by means of the ramp test set. Transmit fre-
quency must be 1090 ± 3 MHz. If necessary use special wrench (1/4") loo-
sen trimmnut through the hole in the top cover and adjust transmit frequency
by means of the tuning screw.
CAUTION : After adjustment carefully tighten the trimmnut.
D. Preflight test
(1) Set the mode switch on the control unit to SBY.
(2) Press the test push-button :
Test function assess corresponding to manual for control unit.
INSTALLATION AND OPERATION
ATC 3401 - (1) - R
Page 2-7
34-50-03 June 15/96
UNCONTROLLED COPY IF PRINTED
To Next Page
Loading...