How to Improve Satellite Payload Measurements with Low-Noise RF Signals

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Pro XG7 Analog Signal Generator
+ Pro XG7 Analog Signal Generator
Pro XG7 Analog Signal Generator
+ Pro XG7 Analog Signal Generator

Reduce Source Contributions To Payload Measurements

Satellite payload RF testing requires a controlled stimulus at the frequency and level needed by the upconverter, downconverter, or other frequency-conversion stage under test. Configure the source within the applicable test frequency range, account for losses through cables, switches, and fixtures, and establish sufficient measurement margin between source impairments and the device behavior you need to observe.

Apply the RF stimulus to the conversion stage and measure the output with RF analysis instrumentation. Depending on the payload and test objective, measurements can evaluate conversion behavior, error vector magnitude (EVM), dynamic range, and unwanted responses. Consider phase noise, amplitude modulation (AM) noise, broadband noise, spurious signals, and the remaining test system when interpreting the measured result.

Low-Noise Satellite Payload RF Test Solution

Characterize satellite payload upconverters, downconverters, and other RF conversion stages using a controlled stimulus that minimizes source-contributed impairments. The solution provides a clean RF stimulus for evaluating conversion performance, EVM, dynamic range, and low-level unwanted responses, helping engineers separate device under test (DUT) behavior from limitations introduced by the signal source. The source can be configured for the required frequency and output level while accounting for losses in the RF test path. Low AM noise, phase noise, broadband noise, harmonics, and spurious signals help preserve measurement visibility during sensitive RF characterization. This supports repeatable payload testing and provides greater confidence that measured performance reflects the DUT rather than unwanted contributions from the stimulus source.
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How to Improve Satellite Payload Measurements with Low-Noise RF Signals Block Diagram

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