TB 9-6625-2077-24
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in the procedure. Additional
maintenance information is contained in TM 11-6625-2954-14&P
d. Unless otherwise specified all controls and control settings refer to the TI.
7. Equipment Setup
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. Connect the TI to a 115 V ac source.
b. Set POWER switch to ON and allow at least 30 minutes for equipment to reach
operating temperature.
c. Set POWER switch to OFF and wait 30 seconds. If TI MODULATION and RF
OUTPUT meters do not indicate 0, adjust to 0 using adjustment screw located below
meter face.
d. Set POWER switch to ON.
NOTE
Verify the proper cal factors are loaded for the measuring
receiver power sensor module being utilized.
8. Frequency
a. Performance Check
(1) Set RF output switch to 0 dBm and MODULATION switch to CW.
f
(2) Connect TI RF OUTPUT to audio analyzer INPUT HIGH using a 50
eedthrough termination.
(3) Set TUNING RANGE switch to 50-250 kHz and adjust TUNING COARSE
and FINE controls for 50.00 kHz on FREQUENCY display.
(4) Adjust RF OUTPUT LEVEL control for a 0 dBm indication on TI RF
OUTPUT meter.
(5) Verify that the audio analyzer indicates within the limits listed in table 3. If
audio analyzer does not indicate within the limits specified perform b below.
(6) Set TI to the next frequency listed in table 3, using the TUNING COARSE and
FINE controls.
(7) Adjust RF OUTPUT LEVEL control for a 0 dBm indication on RF OUTPUT meter.
