Wojtek,
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From the TinySA Ultra wiki:
- For best measurements keep input power below -25dBm
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I always ensure that the peak displayed is below -25dBm.? With either my Basic or Ultra, I get different results if I go above that value.
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My setup uses a 40dB 25¡ªor 100-watt attenuator followed by a 2-watt-rated step attenuator to dial in the best signal level for the measurement.
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73
Evan
AC9TU