Using the NanoVNA antenna analyser I did some analysis on my handheld antennas using a sweep from 144-440MHz centred around 292MHz. I did perform a calibration using the provided online documentation before I started all this.

I also used the provided SMA-JJ RG316 coaxial cables to connect the antennas to the analyser. I used the

nanovna-saver

software on my Mac connected to the USB port to control the analyser.

AnyTone D878 High Gain rubber duckie

This is the standard antenna provided with the AnyTone D878 handheld transceiver.

Reteviz RHD771

This is an antenna I’d bought thinking it would be a better antenna to use “in the field”.

forgot to save the gain image

Baofeng UV-9R rubber duckie

Standard antenna that came with my Baofeng UV-9R handheld transceiver.

Feedback

Either to the NDR Whatsapp group or through my QRZ email.

Update 8/12/2020: this article from AD5GG is a nice introduction to some of these graphs as they relate to antenna tuners.