I would start checking in 2 areas > 1) RF getting into the audio chain or other power/control leads somewhere. Think about adding Ferrite "mufflers" (made from #43 ferrite) to any audio cables. Place the Ferrite near connectors on both ends. Make sure the power supply and control line leads are "doctored" the same way entering and exiting your cabinetry.
2) Loose audio connections, especially if you are using RCA type plugs and jacks in your audio chain. Had the same problem on one of our repeaters until I discovered only one brand of over-the-counter phono plug mates tightly and reliably with the jacks on the rear of the RC-850 controllers. That brand is Switch Craft. Had no more audio intermittent problems once we got all of the Radio Shack connectors out of the systems. Ron -WB8ERB- Sawnee Mountain Group -----Original Message----- From: Robert W Burton [mailto:[EMAIL PROTECTED] Sent: Thursday, March 25, 2004 7:41 AM To: [email protected] Subject: [Repeater-Builder] audio problems We have a hub repeater within our system that is having a problem. (http://www.georgiaskywarn.com ) Every so often the audio level just drops. No distortion, no intermod mixing that we can hear...the level of the audio just gets softer. No loss of signal either. The repeater is located on a tower that has 2 fm radio stations running lots of power on it. One of the radio stations has caused some problems with the local school and neighboors who are just underneath it's footprint. Problems with them getting into t.v. , intercoms, etc. This problem will just "happen" then fix itself. There are several pagers, cell phone and one digital t.v. (I think there still in business....if your in the Atlanta area it's Bellsouth's thing with the dishes in the tops of trees....it's really too funny to see these things ;-) on this same tower. The repeater is a MCC converted GE Master Exec II with a SCom7 controller. Thanks, Robert ________________________________________________________________ The best thing to hit the Internet in years - Juno SpeedBand! Surf the Web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! 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/
