Clint: Thanks for the comprehensive notes. We had been experiencing some intermittent on-channel signals on our UHF dstar repeater; we installed the dstar discriminator tap and fed this unsquelched audio into the sound card of a co-located an IRLP node, which routed it back to a node here at the house where I could monitor it on a local PC speaker. We identified the source within a day. Just need to design a squelch circuit as monitoring white noise was not pleasant....
Greg N6LDJ > In our brainstorming, we have also thought about having an analog > repeater in which one takes the discriminator outputs of the various D- > Star repeater's receivers and selecting among them, providing a way to > remotely "hear" what the D-Star receivers are hearing to see what sort > of QRM may be present - a valuable diagnostic tool especially if the > QRM is intermittent in nature. >
