UHF home brew repeater success stories?

[nfsus]

I want to build an uhf repeater for a job site . On the cheap of course. I’ve seen the stacked baofunks using mic/speaker cords and side by side mobiles.


Anyone had any good luck experiences setting anything up?

 

[SuperLid]

I want to build an uhf repeater for a job site . On the cheap of course. I’ve seen the stacked baofunks using mic/speaker cords and side by side mobiles.


Anyone had any good luck experiences setting anything up?

Yeah, sure, but I would never even think of using Baofeng radios. I would use a pair of front mount mobiles, a 6 cavity mobile duplexer and a good controller.

 

[brandon7861]

There are some old celwave duplexers on ebay that are reasonably priced. The only way around having a duplexer is antenna separation which is not very easy at UHF due to coax losses (unless you can get them axial to each other, which requires a decent tower).

One approach that might work is if you have two high locations, one for RX and one for TX, and those linked via VHF so you only need two diplexers instead of one expensive duplexer.

Have you considered homebrewing a set of cavities? I've never done it, but there are papers on it.

 

[nfsus]

Yeah I’d have to use a duplexer. I can’t see a way around that for any good

 

[brandon7861]

A lot of the celwave ones are notch only and pretty easy to tune. The one I have is a TDN7407A (PD633), which is for 450-470MHz. There is the same one on ebay for $158 right now.