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
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R ANGER -X5 R ADAR S YSTEM
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ROUBLESHOOTING
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AINTENANCE
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ALIBRATION
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OMPANY
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ROPRIETARY
signal source. This signal will be injected into the IQ2 receiver using coaxial cables. The IQ2 will
be configured in such a manner that the level of the injected CW signal, which is clutter, will be
reduced by 40 dB.
Test Preparation:
1. Using the Agilent 33250A or equivalent signal source and an IF splitter inject a CW signal
at 60MHZ into both the burst input and the horizontal input of the IQ2. A typical starting
level for the injected signal is 500millivolts P-P.
2. Open an A-scope windows and select the CCOR H data moment for display.
3. Select an operational mode of 2.0uSec at 60 KM range using the Surveillance control
screen.
4. Set the sample size to 240 pulses to ensure accurate readings.
5. Set the A-scope cursor to a range of 30 KM.
6. Open the burst alignment utility and initiate a burst sample.
7. Adjust the signal level input until a burst level of at least +/-25,000 units is displayed in
the burst sample window.
8. Set the Clutter Correction Threshold to 70 dB for the selected pulse width.
Test Procedure:
1. Select Clutter Filter (50db)
2. Apply clutter filter number 1.
3. Visual observe a clutter rejection of at least 40 dB in the CCOR A-scope display.
4. Repeat the verification procedure for all available clutter filters.
5. Verify a CCOR moment data value of at least 40 dB for all selected filters.
Pass 
Fail 