TB 9-6625-2050-24
Table 7. Instrument Accuracy (Model 436A and 436AOPT9/22)
Range calibrator switch
settings and test
instrument meter
Test instrument digital display
Multimeter indications
RANGE
indications
(V dc)
indications
Min
Max
Min
Max
W
W
W
0.995
1.005
10
9.95
10.05
W
W
W
0.995
1.005
100
99.5
100.5
1 mW
0.995 mW
1.005 mW
0.995
1.005
10 mW
9.95
mW
10.05 mW
0.995
1.005
100 mW
99.5
mW
100.5
mW
0.995
1.005
1
-20 dBm
-20.02
dBm
-19.98 dBm
0.995
1.005
-10 dBm
-10.02
dBm
-9.98 dBm
0.995
1.005
0 dBm
-0.02
dBm
0.02 dBm
0.995
1.005
+10 dBm
9.98
dBm
10.02 dBm
0.995
1.005
+20 dBm
19.98
dBm
20.02 dBm
0.995
1.005
1Press
TI MODE dBm pushbutton.
Table 8. Instrument Accuracy dB (REF) Mode
(Models 436A and 436AOPT9/22)
Test instrument meter
RANGE indications
Range calibrator switch
settings
(dB (REL))
(dBm)
Min
Max
-20
-9.96
-10.04
-5
+4.96
+5.04
+10 dBm
+19.96
20.04
b. Adjustments
(1) Press TI LINE pushbutton to OFF (out) and MODE pushbutton to WATT.
(2) Set range calibrator FUNCTION switch to CALIBRATE and POLARITY
switch to NORMAL.
(3) Connect frequency counter to A2TP5 (fig. 1).
NOTE
PC extender board and rubber bumpers should be installed to
extender board to prevent board from touching.
(4) Press TI LINE pushbutton to ON (in).
(5) Adjust FREQ potentiometer A2R69 (fig. 1) to obtain maximum indication on TI
digital readout and verify that frequency counter indicates 220 Hz (R).
(6) Repeat a above, and if TI does not indicate within limits specified, perform (7)
through (18) below.
(7) Disconnect counter from TI.
(8) Connect multimeter to TI RECORDER OUTPUT (rear panel).
(9) Set range calibrator FUNCTION switch to STANDBY and RANGE
switch to 1 mW.
13