TB 9-6625-2043-35
b. Adjustments
(1) Adjust function/arbitrary generator output for an indication of 7.07 mV on true
(2) Adjust R180 (fig. 1 or 2) for a -3.0-V dc indication on multimeter (R).
11. Recorder Full
Scale Sensitivity
a. Performance Check
(1) Disconnect positive side of multimeter from TP17 and connect to + (positive)
RECORDER connector on TI rear panel.
(3) Set FULL SCALE switch to -30 dBm.
(4) Adjust function/arbitrary generator output for an indication of 10.0 V dc on
multimeter. If true rms voltmeter does not indicate between 7.04 and 7.1 mV, perform b below.
b. Adjustments
(1) Adjust function/arbitrary generator output for an indication of 7.07 mV on true
(2) Adjust R523 (fig. 1 or 2) for a 10.0 V dc indication on multimeter (R).
a. Performance Check
(2) Set FULL SCALE switch to -30 dBm.
(3) Adjust function/arbitrary generator output for a TI meter indication of -30 dBm
(1.000 W). If true rms voltmeter does not indicate between -29.65 and -30.35 dBm,
perform b below.
(4) Repeat technique of (1) through (3) above for values listed in table 3. If true rms
voltmeter does not indicate within limits specified, perform corresponding adjustments.
True rms voltmeter
Test instrument
indications (dBm)
Adjustments (R)
FULL SCALE
Adjust for
switch positions
Meter
indications
(dBm)
indications
Min
Max
(dBm)
-50
-50 dBm
-49.55
-50.45
R525
-50
(10.00 nW)
-40
-40 dBm
-39.6
-40.4
R524
-40
(100.0 nW)
-20
-20 dBm
-19.7
-20.3
R522
-20
(10.00 W)