Thanks guys... Some of these ideas might work. Sorry, I should have
given more details... It's basically receive antennas in the 1000 MHz
range, and I don't have access to the transmitters that will be used
with them. I'm just trying to find a way to see where they're tuned
and then be able to tune them if they're off. So if I went with an SWR
meter, maybe there's an easy way to generate a signal to use that? I
have an Autek that goes to 500 MHz. Somebody mentioned using a
frequency doubler, but I'm not sure how that would work.