What's the model number? At 03:07 AM 3/22/04 +0000, you wrote:
>Thanks for the tip. Well it was worth a try. I had it given to me >for use as a repeater. It's a new unit that never even got used, but >sad to say the ovens are gone. Suppose it's a good boat anchor. >Large paper weight. > >Mathew > >--- In [email protected], Mike Morris <[EMAIL PROTECTED]> >wrote: > > At 09:04 PM 3/21/04 +0000, you wrote: > > > > >I have a motorola Motrac Radio, can anyone tell me if this unit can > > >be converted to use as a repeater, and what is needed for the > > >crystals. Any help on this would be appreciated. What could be > > >used for a simple controller with little to no hangtime? Thanks. > > > > > >Mathew > > > > The mobile Motracs are all over 30 years old and the insulation > > on the internal wiring (at least on mine is starting) to flake off. > > Given that situation I would not trust a Motrac in a mission- >critical > > environment. > > > > The early Motracs - the HHTs used crystals in ovens. I do not > > know of anybody that is still making oven crystals. The LHT series > > and MHT series used channel elements - packaged transistorized > > crystal oscillators. The UHF LHTs and MHTs used a funny two-piece > > element that is hard to find, but a one-piece blue element can be >made > > to work just fine by changing one resistor inside. > > > > Also the heat sinks on the tubes are made for a 10%-30% > > duty cycle - and the heat transfer characteristics is such that > > they can't "suck" the heat off fast enough for repeat duty. > > > > Mitreks make better low power low-duty-cycle repeaters if > > a crystal based radio is OK.... You can get them for $20-50 each. > > If you need a high duty cycle repeater go with a GE master-II. > > > > And if you need synthesized, two Maxtracs can be cross- > > connected into a dandy little low duty cycle repeater... > > > > As to a controller, any of the current crop can be set for a low > > hang time. The cheapest is the NHRC kit. > > > > Mike > > > > > > >Yahoo! Groups Links > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
