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
orientation procedure is to have the white colored blocks, the strongest returns from the
sun, in the center of the Antenna Test viewing area.
8. The Sun Track process may take a considerable amount of time. The operator can
observe the progress in the percent completed status bar, and also can view the time to
completion in the Time: status indicator at the top of the window.
9. When the Sun Track process is complete, the operator should see a blue circle which
indicates the point of strongest return in the Sun Track viewing area.
10. With the mouse, select "Correct" to administer a system wide Azimuth and Elevation
correction to compensate for the difference between the calculated sun position, and the
radar strongest return position.
11. At the Defaults: drop down list, select Medium and repeat the above steps to more
accurately correct the antenna position. When the search process is complete, select
"Correct" to compensate for the known error.
12. At the Defaults: drop down list, select Narrow and repeat the above steps to more
accurately correct the antenna position. When the search process is complete, select
"Correct" to compensate for the known error.
13. Repeat the process for the Narrow mode until the Peak value is less than the system
orientation specification, usually +/- 0.1 degrees.
14. When the Peak values are within the specification as described in the previous step, the
antenna orientation is complete.
15. Print the resulting image from the Narrow Sun-track plot. Attach the printout.
16. Exit the Antenna Test window.
5.4. Receiver Performance Verification Test
5.4.1. IQ2 Receiver Noise Level Verification
1. Use an external signal generator to insert a signal into the receiver before the LNA.
2. Put the external signal generator in CW mode.
3. Configure the external signal generator so that it produces a -50 dBm CW.
4. Place the system in SIDPOL mode of operation (SIM H/V)
5. Open the A-Scope and adjust the receiver band pass filter for peak signal level on the A-
Scope. Peak the signal level by adjusting the frequency on the signal generator.
6. Turn off the RF output of the signal generator and set to maximum attenuation.
7. In the Surveillance window select pulse width 2.0 and set the noise value and log noise
threshold to 0. Take noise sample by clicking on the Sample icon.
8. Verify the noise value is correct by observing the A-Scope. Examples of Correct Noise,
High Noise and Low Noise A-scope displays are shown in the following image.
5.4.2. IQ2 Receiver Calibration and Dynamic Range Verification
Test Procedure:
When using EDGE, select calibration from EDGE control.
Prior to performing the receiver calibration confirm that all performance parameters, such as
transmitted power, antenna gain, beamwidth, path loss, etc…have been entered into the EDGE
configuration GUI.
1. Prior to performing the Dynamic range verification verify or perform a point CAL for each
pulse width as follows:
2. Select the external generator as the source and point as the mode.
3. Set the range to 20KM and the Signal Level to –50.
4. With the pulse width set to 2 usec, verify the frequency is still peaked by observing the A-
scope display. The –50 dBm signal should be clearly visible. Re-peak the frequency of
the generator if necessary.