At 10:00 AM 08/05/10, you wrote: >I was told that I should be using 5C for receive and transmit but >the 5C will NOT fit on my PLL exciter. > >Any ideas? > >Steve W4SEF
See this article <http://www.repeater-builder.com/ge/m2icoms.html> It has photos of the EC, 5C and 2C wide and narrow ICOMs. You apparently have a wide EC transmit and a narrow receive element. The EC is a slave element, and the 5C is a master. The 2C and 1C stand alone - they do not receive or generate the compensation voltage. Without a 5C in the transmitter, the compensation line in your transmitter is floating and as such the transmitter is drifting. As I see it you can do one of three things: 1) Jumper the receive compensation line over to the transmitter. This slaves your EC to the 5C in the receiver. This is quick, cheap and will work. If you have a high RF level at your site (like at a busy 2-way site or at a TV station transmit site), then use a small coax like RG174 as the jumper and ground the shield to an adjacent ground pin.. 2) Get a wide 5C (on ANY frequency) and stuff into an open element connector in the transmitter. You DON'T add a jumper to enable the element, just plug it in. It's only use is as a compensation voltage generator (as the master to the EC slave). 3) The most expensive, but the right way, would be to get a wide 2C element and have International rock it up on your frequency, then replace the EC with the 2C. All of this is covered in that article. Mike WA6ILQ
