Up until now, I have used my $450 AIM-4170D for measurements made inside the shack and it is capable of being calibrated to make remote measurements from the shack. Calibrating for those remote measurements is a pain plus the AIM-4170D requires a 12v supply and a PC or laptop for it to function. My decisions have been (1) run back and forth between remote measurement point and shack in order to do the calibration or (2) Lug a 12v battery and laptop to the remote measurement point (sometimes on the roof or up a tree). Up until now, I have relied on my $120 Autek VA1 for those vest pocket difficult remote measurements but the Alpha-Numeric+ display is clumsy. Except for a couple of nagging problems, e.g. bright sunshine, the NanoVNA solves those problems. One idea I have had is to marry the NanoVNA to a portable RPi system (larger display) running NanoVNA-Saver. Some hams are already running WSJT-X and FLDigi on such portable battery-powered systems.
