TB 9-6625-2280-35
(9) Fine zero power meter on most sensitive range, then set power meter RANGE
switch to 1 mW.
(10) Ensure multimeter input terminals are isolated from chassis ground for
(11) below.
(11) Adjust multimeter (dc mode) controls to measure microvolts.
(12) Connect multimeter positive lead to power meter VCOMP and connect
multimeter negative lead to power meter VRF.
(13) Press MENU key (one time) and then F3 key.
(14) Press F1 key when CALIBRATION/ZEROING menu appears and then
immediately press number 7 key.
CAUTION
Do not press any UNITS key (nS, S, or mS keys). If any
UNITS keys are pressed, CALIBRATOR 1 GHZ output power
will increase to 100 mW.
(15) Press CLEAR key.
(16) Connect power meter to CALIBRATOR 1 GHZ output.
(17) If multimeter indication is 400 V or less, record multimeter indication and
proceed to (19) below; if not, proceed to (18) below.
(18) Hold power meter FINE ZERO control and adjust COURSE ZERO control for
a multimeter indication of 200 V or less. Record multimeter indication.
(19) Round off indications recorded in (17) or (18) above to the nearest microvolt and
record this value as V0.
NOTE
nS, S, mS keys are UNITS keys.
WARNING
Do not press any UNITS keys when power meter is connected
to TI. TI output will increase to 100 mW output power if any
UNITS keys are pressed.
(20) Press number 7 key and record multimeter indication as V1.
(21) Disconnect multimeter negative lead from power meter VRF and connect
multimeter negative lead to power meter chassis ground. Record multimeter
indication as Vcomp.
(22) Disconnect multimeter negative lead from power meter chassis ground and
connect multimeter negative lead to power meter VRF.
(23) Press CLEAR key.
(24) Repeat (17) through (23) above five times.
(25) Average V0 indications recorded in (19) above.
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