Re: Kenwood TM-271A First off, most of the typical link radio type connections you're looking for are inside the radio. You need to pop off the cover and solder your own flying leads (wire connections) in place.
As a Kenwood Dealer I can help you with a free pdf copy of the Factory Kenwood Service Manual. Just email me direct for a pdf scan and promise not to start selling copies. I can also provide some additional sources of information that would be pretty handy for your application. While the TM-271a is not rated for long tx duty cycles at full power (it's a typical well built Amateur Radio... not a commercial radio) it operates just fine lock to talk at the lower power settings, which is easily programmed. A lot of people think a radio front end needs additional filtering when it fact it could be other issues. We have a mountain top located link radio (Yaesu) that will not work with pretty much any practical number of band pass cavities parked in front of it. The receiver just howls... so I parked a 3dB power pad in front of it and it now works just fine regardless of the number of cavities in the front end. The Yaesu Radio problem is not for lack of filtering... it has other problems. So it's hard to point fingers unless you're really sure of what's going on. I'm putting a TM-271 through its paces right now and have not had a problem with it yet while using it very busy repeater sites. And I don't run it lock to talk (repeater service) at full tilt power... because a good signal doesn't require full power from a mountain top. cheers, skipp > > Has anyone used a Kenwood TM-271A to make a repeater, I cannot > > find the discriminator audio for this radio. Any help would be > > appreciated. > Not the best choice , front end needs better filtering and because > of the rated duty cycle the output power needs turning down to about > 1/2 and a decent heat sink added , go find a commercial rig for > conversion and use the 271 if you must for a link or control or the > car .
