TB 9-6625-2288-24
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. Mechanically zero TI meter.
b. Connect RF probe to PROBE jack.
NOTE
The RF probe authorized for use with TI must have serial
numbers matching the TI serial numbers. If a new RF probe is
calibrated with TI, annotate new RF probe with TI serial
number. Do not use any RF probe not calibrated with TI.
c. Connect TI to a 115 V ac source.
d. Set OFF-ON switch to ON.
e. Set RANGE-FULL-SCALE switch to .001 -VOLTS.
f. Adjust SET-REF until meter pointer is at SET REF mark.
g. Allow TI to warm-up for 1 hour.
h. Allow measuring receiver to warm-up for 30 minutes.
8. Accuracy and Linearity
a. Performance Check
(1) Adjust calibrator for wideband operation.
(2) Connect calibrator WIDEBAND OUTPUT (without 50 ohm pad) to TI RF probe
using 50 ohm feedthrough termination supplied with TI.
(3) Adjust calibrator frequency controls for 500 kHz output.
(4) Adjust calibrator voltage output controls for a TI meter indication specified in
(5) Repeat technique of (4) above for remaining RANGE-FULL-SCALE VOLTS
setting listed in table 3.
(6) Set calibrator to standby.
(7) Disconnect TI RF probe from calibrator output.