> > I have a GE Mastr II UHF repeater that has been doing pretty well for > > me, last trip to the hill was a low power issue and I spotted a nice > > blue spark where the coax attaches to the PA board on transmit, rather > > easy fix. > > How do you have it connected? On either the base or > mobile version, it should connect with an RCA jack.
This is a repeater chassis, the 40 watt PA, and the RF leaves the PA board and goes to the filter board via a small coax soldered on both ends, it's the standard set up. > > However when I enabled the local speaker, it caused a > > feedback type howl on receive. As I decrease the volume on the local > > speaker it gets worse, and the only way to keep it out at all is full > > volume on the local speaker. > > I've seen many cases where the audio transistors will go into > oscillation when the speaker is disconnected, but not when you simply > turn down the volume. But then again, considering your above info, is > this on an IDA board (the only one I know of that has a pot to turn) or > is your audio connected OEM or something else? I.E. Are you removing the > load from the audio amp? Standard repeater chassis, there is a local speaker in the base of the chassis and a switch to enable it or disable it. I'm assuming that the design is such that the thing will run normally with the speaker disabled, I'll have to trace the thing out to see if the switch that disables the speaker puts a load across the audio amp. Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|****| mmm! (541) 265-7652 fax ( | | coffee! (541) 270-5886 cellular \| | [EMAIL PROTECTED] |____| 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/
