Try a diode between the PTT line and the repeater.
On Thu, Jan 22, 2009 at 8:06 PM, Glenn Maclean <wa7...@comcast.net> wrote: > I am putting a 220 repeater together using an ICOM IC-RPP2210. The > repeater is working except the PTT LED remains illuminated all the time. > It goes ever so slightly brighter when the repeater is keyed up. I > measure 1.56 volts dc at the PTT line between the controller and > repeater un-keyed. I measure .67 volts dc when the repeater is keyed up. > I have tried applying 12 volts to a 10k ohm resistor with the other end > connected to the PTT line with no change. The PTT LED remains on. I even > tried a 1K resistor in the same configuration. The PTT LED remains on. > The repeater is transmitting and receiving just fine with the RC210 > controller. > > Any suggestions? > > Thanks, > Glenn > > ------------------------------------ > > > > Yahoo! Groups Links > > > >
