I remembered and found a USB Bluetooth adapter in my gadget bag. I connected it to the NanoVNA with a USB-OTG cable and usb-micro to usb-C adapter. Scanning for bluetooth devices with my Android v8 phone did not find any devices. I didn't expect the NanoVNA software to have a "host mode" connection and that may be why it didn't work. I was (am) hoping someone might know of a wireless replacement for the USB cable that goes from PC to NanoVNA. But it looks like the chances are very slim. In my case, it's not worth a lot of effort or expense just to save some inconvenience, although if something becomes available it might be very popular.
There may be a way to add such a communication capability to the NanoVNA, but it's probably a major effort and not worthwhile. Unless there turns out to be a lot of other requests for it!
Doug
