Nano VNA and Tiny SA as Signal Generators for testing Meshtastic frequency equipment

[@Abdullu]

5:10 besides the signal-generating NanoVNA-F v2, the signal-receiving SDRplay RSPdx could also contribute to the frequency measurement being off by what is specified on the sending side.

[@fotografm]

This is indeed true. I need to invest in a frequency standard !

[@Abdullu]

17:57 maybe plus-minus mistake? (assuming the "tinySA Ultra" shows correct values): with the receiving "tinySA Ultra" showing 10.1 dBm, and cable attenuation at 1 dBm, the sending side provides 11.1 dBm; but the sending "tinySA" is configured to send at 9.0 dBm. So it seems the "tinySA" is actually sending with more energy than what is configured.

[@fotografm]

That could well be true. The tolerance on this equipment is probably much higher than 1dB anyway.

[@MarcmilitiaGNR]

Can they output 1.270GHZ signal.

[@DrKnow65]

Could it be that the Tiny SA was showing -db errors because of the noise floor (-28dbm from tiny SA with the -40db attenuator)?

[@fotografm]

That's a good point !