Given the fact that a voter still requires an outboard repeater controller for other needed functions, and is designed to select a receiver based on S/N ratio rather than a preset hierarchy, would it really be a good choice for this application?
A new LDG voter lists for $319 and still requires a separate controller. If all three receivers go active at once, it will wander between three possibly unrelated conversations based on momentary changes in S/N ratio. An SCOM 7330 is a controller with three receiver ports for $459, can be set to give each receiver a predetermined (and remotely modifiable) priority independent of S/N ratio, and would allow the three repeaters to operate independently or linked in any combination. Don't get me wrong, I've drawn up some real kluges in my day, but a voter as an audio mixer seems odd even to me. 73, Paul, AE4KR ----- Original Message ----- From: skipp025 To: [email protected] Sent: Monday, January 04, 2010 2:17 AM Subject: [Repeater-Builder] Re: Audio Mixer for multiple repeaters Each of the repeater receivers would provide audio and a cor logic to one of the eight LDG Voter inputs. You might consider the cor logic being a valid CTCSS (PL) detection, the carrier squelch COR logic or an "AND" version of both. There are logic enable lines on the Voter so you can turn off unwanted receivers with your external repeater controller output control lines. The output of the voter is one audio and ptt logic function, you'd have to make a simple distribution "line driver" amp for each repeater transmitter. You could also enable all the transmitters through simple logic we could talk you through building. To disable a repeater Transmit you'd simply supply the same receiver logic control line to disable that one transmitter. It's not that hard to build if you buy the voter. s. > Gilles Violette <adj...@...> wrote: > Hi Skipp025, > How would this handle the core and the PTT audio > and would it be easy to match the impedance from > all the repeaters ? > Thanks for the info. > > GVÂ > From: skipp025 <skipp...@...> > Subject: Audio Mixer for multiple repeaters > Re: Audio Mixer for multiple repeaters > I know it wouldn't at first glance be considered a mixer... > but using an LDG Voter as a mixer (and voter) works out > very well. > http://www.ldgelect ronics.com/ c/252/products/ 5/19/1 > If you don't need as many inputs, consider the CAT Auto > RLS-1000B. > http://www.catauto. com/rls1000. html > And of course many repeater controllers are multi-port > boxes. > s. > > > "adjiqc" <adjiqc@> wrote: > > We are a club looking for an audio mixer that can mix up to 3 or 4 repeaters with different impedance, we are hooking up 3 different repeaters together. We built an homemade audio mixer but not very stable , we hope to find something solid and well shielded because there are lots of interference at that specific site. > > > > Any ideas where we could get such thing pre built or built ? > > Thank you
