At 03:34 PM 01/12/08, you wrote: >Hi, Anyone here tried using a TS64 after a voter. I can see were >decoding would chop in and out, as it changes between site selected, >but thought we would ask the group. > >Randy
Short answer: It shouldn't. Long answer.... The user's PL encoder is the source, which will be picked up by all of the satellite receivers, then the link transmitters and receivers carry it to the voter. This is to prevent the problem of cascading decoders. A lot of voting systems run the satellite receivers and the links in carrier squelch mode, with the PL decoding function at the voting panel site, either before or after the panel. Some voters are confused by the PL tone, others don't care. If yours does not, then you can put the decoder behind it. One potential problem is this: each link receiver will deliver the users PL encoder to the voting panel in the same timing/phase, but if there is one extra phase inversion anywhere in the path from remote receiver to the voter then you will find that when the voting panel switches from any of the several in-phase receivers to the out-of-phase receiver the tone decoder will see the PL tone phase suddenly invert which would quench the tone decoder... in other words it would look like a reverse-burst and slam the squelch closed. More details here: <http://www.repeater-builder.com/tech-info/votingcomparators.html> Mike WA6ILQ
