I had an IFR1000 as my first service monitor. The power supply was bad, and IFR quoted $1600 for replacement! That was more than the monitor was worth. So, I did what any good ham would do, I built my own! I used an AC supply to create 15 volts, then used DC-DC converters to create the voltages needed. It worked fantastic, much better than the OEM unit. I packaged it in the rear of the unit, just like factory.
I did change the operation a little, the on board battery only ran the oscillator. That way I could unplug the monitor and travel to the mountain, and the oscillator is running all the time. I had AC at the mountain, so I would plug in and be ready to go. The battery would run the oscillator for 10 hours. It would be trickle charged when plugged in. I also changed the way the fan worked. I created a two step fan, when the unit was turned on, the fan ran slowly. When needed by the thermostat, the fan sped up. Much nicer. Anyway, thats what I did. I turned out better than I could have hoped, and I learned a lot about how that IFR switcher worked, which was poor! Tracy --- In Repeater-Builder@yahoogroups.com, <[EMAIL PROTECTED]> wrote: > I have a IFR 1200 that the power supply seems to have gone out.. anyone know > someone that can repair this. > thanks > --- > Tommie Taylor > Lampasas Skywarn Weather Repeater > 145.330- 162.2T (SWLynx) / 444.875+ 88.5 (Echolink) > http://www.a1cmugs.com > WEEKLY "CENTRAL TEXAS STORM SPOTTERS" Net > TUESDAY EVENINGS AT 7PMCST ON REPEATER ABOVE > AND ECHOLINK VoiceOverIP NODE#28689/28821 > ----- Original Message ----- > From: "Steve S. Bosshard (NU5D)" <[EMAIL PROTECTED]> > To: <Repeater-Builder@yahoogroups.com> > Sent: Tuesday, April 27, 2004 6:43 AM > Subject: RE: [Repeater-Builder] IFR Monitor Repair Charges > > > > Same deal with large LMR factory depot - flat rate for one problem - more > > problems MORE $$$s. > > > > Steve > > > > > > > > > > > > > > > > > > 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/
