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Spirent KB Article
Doc ID: FAQ16841
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GNSS Positioning Simulator: Should I expect to see a power level increase or decrease on a spectrum analyzer when turning on multiple channels?
Environment/Versions
Measuring power level on Spectrum analyzer
Turn on one channel, measure power, add another channel and repeat measurement
Answer
Simply adding channels into a simulation will not provide accurate power measurements
If the channels are in phase then you will observe a higher power level when adding a channel
If the channels are out of phase then you will observe a decrease in power when adding a channel
If you are trying to ensure that the simulated signals have the correct power level then you should not use a SimGEN scenario
Instead follow the relevant power levels sections of the calibration procedure relevant to your simulator - see
FAQ10505
Version
3.0
Publish Date
2016-07-12
Categories
Product : SimCHAN,SimREPLAYplus,SimREPLAY,SimGEN,PosApp,Calibration,Simulator
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