TB 9-4931-535-24
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
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 this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. When indications specified in paragraphs 8 through 19 are not within tolerance,
refer to the manufacturer's manual and perform a complete alignment.
e.
Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
WARNING
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. Ensure TI rear panel OVEN REF OUT is connected to EXT REF IN.
b. Connect TI to a 115 V ac power source.
c. Press LINE ON/OFF pushbutton to ON and allow TI at least 20 minutes for warm-up.
d. Connect TI rear panel 10 MHz REF OUTPUT to synthesizer/level generator rear
panel 40/N MHz REF INPUT. Maintain connection for remainder of this procedure.
8. Frequency Counter and Marker
a.
Performance Check
to TI 50-75 .
(1) Connect synthesizer/level generator OUTPUT 50
(2) Press keys and enter values using ENTRY keys as listed in (a) through (c) below:
(a) ENTRY INSTR PRESET.
(b) SWEEP ENTRY MANUAL to 9 MHz.
(c) MARKER/CONTINUOUS ENTRY COUNTER to on.
(3) Set synthesizer/level generator for a 9 MHz, 0 dBm output.
(4) TI counter frequency indication will be between 8999999.7 and 9000000.3 Hz.