They're great radios. I'd strongly recommend a Delta-S ("narrowband" front end) over a wideband SX or Rangr due to the front end being much tighter. I have many UHF Delta-S's (probably about 60 or 70) on the air, mostly for aux links, and have set up VHF and UHF Deltas as repeater radios, packet nodes, etc. as well. I'd recommend sticking with a low-power radio, and driving an outboard amp if you need significant power. What I usually do is take low-power PA's and transplant them onto the larger heatsink of a high-power radio, run them at low power (like 15 watts or less), and drive an outboard PA. With the big heatsink, no fans required. The highband and UHF radios are extremely stable PA-wise, you can turn them down without a problem. Lowband is another story...they get squirrelly at low power, especially when used out-of-band on 6m.
I have probably 50 pages' worth of notes covering all kinds of mods, measurements, etc. that I've done on Deltas over the years, and know them inside-out, so email if you have any specific questions. --- Jeff WN3A > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of tomnevue > Sent: Thursday, July 08, 2010 10:54 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] VHF REPEATER USING DELTA or RANGR > > > > Has anyone made a VHF repeater using 2 Delta or Rangr radios? > Were the results OK? Any unexpected problems? > > Tom > > > > >