This test applies only to analyzers equipped with external mixing (Option AYZ).
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This test applies only to analyzers equipped with external mixing (Option AYZ). |
This test verifies that PSA Spectrum Analyzers equipped with External Mixing (Option AYZ) meet their specification for 1st LO output level. The 11970 Series mixers require LO drive levels in the +14.0 to +18.0 dBm range.
In this test the PSA is placed in external mixing mode using a harmonic number of -10. The PSA frequency offset is set to 321.4 MHz so that the PSA center frequency will be exactly 10 times the 1st LO frequency. The PSA center frequency is tuned from 30 GHz to 69 GHz, thus tuning the LO from 3.0 GHz to 6.9 GHz. A power sensor is connected to the 1st LO OUT on the PSA and the LO power is measured.
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Test Equipment |
Model Number |
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Power meter |
N1914B |
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Power sensor |
N8485A |
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3.5 mm (f) to Type-N (m) |
08485-60005 |
