Richard wrote:
I need help with a project.

I have a tower site where there is a existing UHF antenna 200 Ft on hard
line mounted and existing. (460.0 mhz)

Is there a device to retune the antenna to GMRS to go on the back of the
radio to retune the load?

Would a combiner help?



I don't think a combiner would help but a tuner or matching network may.
I believe MFJ would have something to handle that for you. Check SWR
first, you may not need anything. You are within 2.5 MHz of the GMRS
receive frequency and as long as the antenna was used for a 460/465
split it should not be a big deal. GMRS is 462.6/467.6 split approximately.