Does this look familiar to anyone?

Receiver Multicouplers, High Dynamic Range VLF, LF, HF, VHF, UHF to Microwave

 

Someone probably burnt it up.

Look at the SO-239 connector on the back for the ANT. See how that one pice in the center is bent? That will do it, or give you a bad reading.

Try carefully bending it back so it will contact the center pin and check it again. It's probably too late, but it's worth a shot.

 

Ok, well, have fun with that idea.

 

I'm just saying that "pin" in the socket is bent. Maybe prong is a better word for it. It isn't going to provide a good connection when you screw in the pl-259.

It doesn't seem like much, but something like that can burn up the amp or give you a false reading. It would be worth trying to bend it back as it's a quick test. Hopefully it's not too late.

 

Still trying to figure this one out.

 

Hard to say, but I don't think it's bent, just bad picture