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<DIV>We have learned the hard way that our Motorola MSF 5000 repeaters with 30
KHz channel spacing and a 2 MHz wide front-end just cannot handle southern
California’s 15 KHz channel spacing. We’ve tried using the 15 KHz replacement
crystals with miserable results. We have not located 20 KHz crystals and even if
we could we don't know what circuit changes would be necessary to tailor the
audio response. We have asked on a site how to interface a Motorola CDM 750
mobile transceiver with 20 KHz channel spacing and instead of an answer we’re
told it won’t work. It’s a mobile. Don’t waste your time. Well, its our time to
experiment. I know of several popular repeaters here on SoCal built using the
CDM 750 / 1250.</DIV>
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<DIV>OK. About Allstar. It seems if we can’t get an answer about directly
interfacing a second receiver to a MSF 5000 that is designed for a second
receiver we need to look at how Allstar can allow us to use an external
receiver. Besides the obvious of a USB or RTCM is there any way to create like a
LOCALHOST situation at the repeater site where we can almost eliminate any audio
delay? We know that, and plan to use, off-site voting to cover our rather large
footprint. That will have to be on an external Internet IP rather than an
internal IP (192.168.x.x). Can we have both? An internal network and an external
network? Or do we have to use one network especially if we plan on doing
voting?</DIV>
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<DIV>Thank you in advance.</DIV>
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<DIV>R. Wayne</DIV></DIV></DIV></BODY></HTML>