TB 9-6625-2308-35
d. Round off multimeter indication to two decimal places and record value as R.
Reading should be ≈ 200 Ω.
e. Connect thermistor mount to power meter interconnect cable.
f. Disconnect multimeter leads from power meter.
g. Press power meter POWER switch to on position.
h. Press TI POWER switch to on position and allow equipment to warm-up for
30 minutes.
i. Set power meter CAL FACTOR % control to value listed on TI body for 50 MHz and
zero power meter.
j.
Set power meter RANGE switch to 1 mW.
8. Calibrator Output
a. Performance Check
(1) Connect frequency counter to TI CALIBRATOR OUTPUT connector.
(2) Perform (a) through (d) below:
(a)
Press MENU key.
(b)
Scroll to REF POWER ON/OFF.
(c)
Press ENTER key.
(d)
Select ON and then press ENTER key.
(3) Frequency counter will indicate a frequency between 49 and 51 MHz.
(4) Set TI POWER switch to off position.
(5) Connect power meter thermistor mount to TI CALIBRATOR.
(6) Set power meter RANGE switch to COURSE ZERO and adjust front panel
COURSE ZERO control for a zero indication.
(7) Fine zero power meter on most sensitive range and then set power meter
RANGE switch to 1 mW.
NOTE
Ensure multimeter input leads are isolated from chassis
ground.
NOTE
Set multimeter to a range that results in a resolution of 1 V.
(10) If multimeter indication is 400 V or less, record multimeter indication and
proceed to (12) below; if not, proceed to (11) below.
