`Control
Position
3-6. Operational Check and Troubleshooting
RANGE
1
of Frequency Measurement Setups for a
AFC
OFF
Passive Device Between 1.0 and 12.4 GHz
LEVEL
Center of range
a. Preliminary Procedure. (1) For measurement
GAIN
Near maximum cw
below 8 GHz, set up equipment as shown in the figure
FUNCTION
RATE C
illustrating the setup for frequency measurement of a
01
Frequency converter
150 MHz
section III, of TM 9-4931-294-15/1.
For
dial reading
measurement- between 8 and 12.4 GHz, set up
equipment as shown in the figure illustrating setup for
(4) Energize all equipment in the setup and allow
frequency measurement of a passive device between
approx. 30 minutes for equipment to warm up and
8 and 12.4 GHz in chapter 2, section III, of TM 9-
stabilize. Verify that pilot lamps on equipment are lit.
4931-294-15/1.
b. Operational Check and Troubleshooting Chart.
(2) Energize all equipment in the setup and allow
After performing preliminary procedure described in a
approx. 30 minutes for equipment to warm up and
above, proceed with the steps of table 3-1. For complete
stabilize. Verify that pilot lamps on equipment are lit.
operational procedures, refer to the paragraph on
b. Operational Check and Troubleshooting Chart.
frequency measurement of an active source below 15
After performing preliminary procedure described in a
GHz in chapter 2, section III, of TM
9-4931-294-15/1.
complete operational procedures, refer to the
paragraph on frequency measurement of a passive
3-5. Operational Checks and Troubleshooting of
device below 12.4 GHz in chapter 2, section III, of TM
Frequency Measurement Setups for an Active
q-4931-294-15/1.
Source Above
3-7. Operational Check and Troubleshooting of
12.4 GHz.
a. Preliminary Procedure.
Frequency Measurement Setups for a
(1) Set up equipment for the respective frequency
Passive Device Above 12.4 GHz.
band as shown in the appropriate figure illustrating the
a. Preliminary Procedure.
setup for frequency measurement of an active source
(1) Set up equipment as shown in the figure
above 12.4 GHz in chapter 2, section III, of TM 9-4931-
illustrating the setup for frequency measurement of a
294-15/1. Select the setup in which the frequency
passive device between 12.4 and 40 GHz in chapter
multiplier is operated at a lower harmonic.
2, section III, of TM
9-4931-294-15/1.
(2) Energize all equipment in the setup and allow
(2) Energize all equipment in the setup and allow
approx. 30 minutes for equipment to warm up and
approx. 30 minutes for equipment to warm up and
stabilize. Verify that pilot lamps on equipment are lit.
stabilize. Verify that all pilot lamps on equipment are
b. Operational Check and Troubleshooting Chart. After
lit.
performing preliminary procedure described in a above,
b. Operational Check and Troubleshooting Chart.
After performing preliminary procedure described in a
operational procedures, refer to the paragraph on
frequency measurement of an active source above 12.4
complete operational procedures, refer to the
GHz in chapter 2, section III, of TM 9-4931-294-15/1.
paragraph on frequency measurement of a passive
device above 12.4 GHz in chapter 2, section III, of TM
9-4931-294-15/1.
3-2