TB 9-6625-2143-24
(8) Set synthesizer level generator output to + 3.01 dBm (0.3162 V rms).
(9) Without disturbing amplitude VERNIER setting, set INPUT SENSITIVITY
control to +20 dB. TI meter indication will be within +0.3 dB of indication recorded in
(7) above.
(10) Repeat (5) above.
(11) Set AMPLITUDE REF LEVEL control to -20 dB.
(12) Set synthesizer level generator output for + 13.01 dBm and record TI meter
indication.
(13) Set synthesizer level generator output for + 3.01 dBm.
(14) Set INPUT SENSITIVITY control to +10 dB. TI meter will indicate within
+ 0.3 dB of indication recorded in (12) above.
(15) Readjust amplitude VERNIER control for -5 dB meter indication.
(16) Set AMPLITUDE REF LEVEL to -10 dB.
(17) Set synthesizer level generator output for +13.01 dBm and record TI meter indication.
(18) Set synthesizer level generator output for + 3.01 dBm and INPUT
SENSITIVITY control to 0 dB. TI meter indication will be within +0.3 dB of indication
recorded in (17) above.
(19) Set AMPLITUDE REF LEVEL to 0 dB.
(20) Set synthesizer level generator output for +13.01 dBm.
(21) Readjust amplitude VERNIER control to -5 dB meter indication.
(22) Set synthesizer level generator output for +3.01 dBm.
(23) Set INPUT SENSITIVITY control to -10 dB. TI meter indication will be
between -4.7 and -5.3 dB.
(24) Set synthesizer level generator output and INPUT SENSITIVITY controls to
settings listed in table 9. TI meter indication will be between -4.7 and -5.3 dB.
Test instrument
Synthesizer level generator
INPUT
output
SENSITIVITY
dBm
Volts
settings
-6.99
0.1
V
-20 dB
-16.99
31.6
mV
-30 dB
-26.99
10
mV
-40 dB
-36.99
3.16
mV
-50 dB
-46.99
1
mV
-60 dB
-56.99
0.316 mV
-70 dB
b. Adjustments. No adjustments can be made.
13