User's Manual Part 2

T ECHNICAL D OCUMENTATION P ROTECTING P EOPLE AND A SSETS
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D ATE : 22 M ARCH 2017 | V ERSION : 1.4
72
R ANGER -X5 R ADAR S YSTEM
T
ROUBLESHOOTING
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M
AINTENANCE
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AND
C
ALIBRATION
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C
OMPANY
P
ROPRIETARY
attenuator with a value exceeding the value recorded in column F must be placed in line
with the sensor to avoid permanent damage to the sensor. The additional attenuator
should also be considered and accounted for in all subsequent Peak Power calculations.
11. Connect the power sensor/detector to the forward port of the bidirectional coupler in the
TX/RX cabinet. Attached the sensors detected pulse and sample pulse to the
oscilloscope per Figure 18.
Figure 18. Test Setup for Peak Power Measurements
12. Zero the power meter. Verify any offsets (if required) and frequency corrections are
applied.
13. Place the radar to RADIATE at full power, measure the detected RF pulse width using the
oscilloscope, and record the results on the test data sheet.
Note: When using the 80351A power meter sensor as the detector the detected pulse will be a positive
going pulse.
14. Connect the oscilloscope (or frequency counter) to the TRIGGER jack and measure the
PRF. Record the PRF value on the data sheet provided.
15. If using an average power meter compute and record the “radar duty cycle” correction
factor using the formula shown below, otherwise log the “duty cycle” correction value as
0 and continue to step 15.