Does this repeater have a digital audio delay in it? It could be getting into ITSELF...
Output to input PIM or other sources like that with a digital audio delay, will sound like that... a hollow "echo" chamber, often with any tones or low level noises really amplified... like stage PA system to mic "feedback" loops. Nate WY0X On May 24, 2009, at 4:00 PM, NORM KNAPP wrote: > Well. The tunnel thing is a better desciption. There is kind of a > heterodyning effect to the sound. Like a drain pipe hollow sound. > Good desciption. > > ----- Original Message ----- > From: Repeater-Builder@yahoogroups.com <Repeater-Builder@yahoogroups.com > > > To: Repeater-Builder@yahoogroups.com <Repeater- > buil...@yahoogroups.com> > Sent: Sun May 24 16:39:07 2009 > Subject: Re: [Repeater-Builder] Strang new noise in repeater > > > > You could do a frequency search and see if you could find a user on > the > reverse pair. However, I've never heard it sound like a steam > whistle - the > description of howling in a tunnel (or drain pipe) is what I've > heard when > reverse pair repeaters lock up. And they can stay locked up until > one times > out. > > Chuck > WB2EDV > > ----- Original Message ----- > From: "NORM KNAPP" <nkn...@twowayradio.net <mailto:nknapp%40twowayradio.net > > > > To: <Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com > > > > Sent: Sunday, May 24, 2009 5:48 PM > Subject: Re: [Repeater-Builder] Strang new noise in repeater > >> Now that is more likely. They have a really weird splinter >> frequency and a >> DPL code. That is still very possible. There has been a good bit of >> ducting lately. Thanks, I will start listening to the repeater input. >> >> ----- Original Message ----- >> From: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com >> > <Repeater-Builder@yahoogroups.com >> > <mailto:Repeater-Builder%40yahoogroups.com >> > > >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com >> > <Repeater-Builder@yahoogroups.com >> > <mailto:Repeater-Builder%40yahoogroups.com >> > > >> Sent: Sun May 24 16:23:27 2009 >> Subject: Re: [Repeater-Builder] Strang new noise in repeater >> >> >> >> Norman, we had a similar situation many years ago with a Ham >> repeater that >> would >> lock up with a distant repeater using the reverse pair >> frequencies ! It >> was >> a sound like >> a hollow tunnel howling and growling.....happened during periods of >> inversion. >> >> John VE3AMZ >> >> ----- Original Message ----- >> From: "NORM KNAPP" <nkn...@twowayradio.net <mailto:nknapp%40twowayradio.net >> > >> <mailto:nknapp%40twowayradio.net> > >> To: <Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com >> > >> <mailto:Repeater-Builder%40yahoogroups.com> > >> Sent: Sunday, May 24, 2009 5:12 PM >> Subject: [Repeater-Builder] Strang new noise in repeater >> >>> Got a VHF repeater in my area. In the last several weeks it has >>> started >>> making a noise like that of a steam whistle. It doesn't do it all >>> the >>> time. It seems random. I have not been able to make any >>> connections yet >>> with regular occurances. It doesn't do it until someone talks >>> through the >>> repeater and the unkeys. The noise keeps the repeater up for a >>> couple of >>> seconds to neary a minute. The repeater is a 100watt MTR2000. I >>> don't >>> remember the duplexer type/model/brand. It doesn't seem to do it >>> during >>> the day, it seems more prevelant in the evening and mornings. >>> Any ideas? >>> N5NPO >>> Norman Knapp >>> >>> >>> ------------------------------------ >>> >>> >>> >>> Yahoo! Groups Links >>> >>> >>> >>> >> >> >> >> >> >> >> ------------------------------------ >> >> >> >> Yahoo! Groups Links >> >> >> > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > -- Nate Duehr n...@natetech.com
