bob wrote in message ...
Another approach would be to use directional couplers and diode
detectors to measure forward and reflected power. The combination of
low power and f2GHz means care is needed.

I found an article on building a directional coupler and two
detectors. The coupler is simple enough. I checked ebay but I
couldn't find anything in the frequency range that had two taps. The
problem I have is building the detector. This site has a hand drawn
schematic but lists the diode as a Marconi LMR Mixer diode, but not
what an equivalent part number would be that can be ordered.
http://www.frars.org.uk/cgi-bin/render.pl?pageid=1085
This is the hand drawn schematic
http://www.frars.org.uk/sessionconte...e-detector.JPG

What would an equivalent diode be for up to 2.6ghz?

Thanks
Rob