All of this begs a simple question.
Use the NanoVNA as a Field Strength Meter.
Why - Just built a new antenna using the NanoVNA to adjust it to the operational Frequency and adjusted the impedance for a match now it would be nice to be able to have some form of active display of the radiated signal, without blowing up the front end the NanoVNA
While I cause a simple diode detector and a meter using the NanoVNA is another possible use.
Any suggestions on how or how not to do it.
Thanks
VE6LX