Hi Jim, How 'bout posting your circuit to the Group's file or picture area so we all can enjoy it?
Jeff --- In Repeater-Builder@yahoogroups.com, Jim Brown <[EMAIL PROTECTED]> wrote: > > Kevin, here is a circuit that I have used several > times to combine a control receiver with the main > receiver in a repeater controller. It can be used to > provide a second frequency port to a repeater system > with one port having precidence over the other, ie > when one port has a signal, the other port is > inhibited. > > I am sending this message direct since I don't think > that the Yahoo groups can include an attachment. > > The circuit is for a positive going COS or RUS signal > input, and provides DC isolation for direct connection > to a discriminator output. De-emphasis is provided by > adding the caps indicated when discriminator audio is > used. > > It has also been used with an NHRC-4 to provide a > third port. I use the fan output to control the > transmitter PTT on the third port and parallel the > audio to both transmitters. The fan output can be > disabled to shut off the transmit on the third port. > > The second port receiver always has precedence over > the third port, and both the second and third ports > can be disabled by disabling the second port in the > NHRC-4 and shutting off the fan control. > > I hope this is what you were looking for - > > 73 - Jim W5ZIT > > > --- Kevin & Natalia <[EMAIL PROTECTED]> wrote: > > > Hi All, > > > > I am looking for a simple circuit that I could use > > to connect either 2x RX's or 2x TX's onto 1 port of > > my controller. > > Reason, I am dealing with a split site repeater. So > > I don't want to waste a port for half a system, that > > I could use for another use. > > I was then thinking about using the linking port to > > run the radio as required, and include a switch to > > switch in or out the radio. > > I am using a Link Comm RLC-3 controller, ports are > > nearly all filled up, that's why I am trying to save > > the port. > > > > Radio A (Link) RX ----------- > > > > ---------------- Radio A (Link) TX > > | > > > > | > > |---------Input > > to controller / Output from Controller -------- > > | > > from site 1 from site 2 > > | > > Radio B (1/2 split) RX--X--- > > > > --------X--------- Radio B (1/2 split) TX > > > > X = switch to switch out the Split site repeater. > > > > Can I ask for some views on this, and any circuit/s > > that may help, even if I only get the audio lines > > working, this would be a help. > > > > Regards > > > > Kevin. > > > > > > Get Skype and call me for free. > > > > > > > ____________________________________________________________________________________ > Get easy, one-click access to your favorites. > Make Yahoo! your homepage. > http://www.yahoo.com/r/hs >
