Specifications

D17XX OEM Integration v0.1
20
www.cobham.com/domo
Domo Limited doing business as Cobham Surveillance
Set the Signal Generator to the initial test frequency displayed on Tera Term (1250MHz in
Figure 8) plus an additional 200kHz and set RF Output to ON.
Press x to take measurements.
Figure 9: Noise Figure test complete
Press x to calculate the Noise Figure, turn the RF output OFF and allow the readings to
stabilise. Examining the output results, verify that all measurements are ≤6dB, and confirm
that the difference between the two inputs is <2dB, as shown in Figure 9.
Press x again to proceed to the next Test Frequency. Set the Signal Generator Frequency
to match the displayed Test Frequency +200kHz and turn the RF output back ON.
Follow the above steps on Tera Term for each test frequency, remembering to add a
+200kHz offset to the test frequency displayed on Tera Term. Again, confirm the Noise
Figure is ≤6dB with the difference between the two inputs <2dB for each test
frequency.
LNA Gain Tests
When the final Noise Figure test has been completed the LNA gain tests will be initiated.
Set the Signal Generator to the initial test frequency +200kHz as displayed on Tera Term
at -85dB level measured at set-up.
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