[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
Re: [Repeater-Builder] Strang new noise in repeater
Could be someone playing "games" with the users. Chuck WB2EDV - Original Message - From: "NORM KNAPP" To: 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.
Re: [Repeater-Builder] Strang new noise in repeater
No, I don't think it is malicious or deliberate. It is almost as if the repeater is getting into itself. It is not a ham repeater, it is a local Sheriffs dept. - Original Message - From: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Sent: Sun May 24 16:03:48 2009 Subject: Re: [Repeater-Builder] Strang new noise in repeater Could be someone playing "games" with the users. Chuck WB2EDV - Original Message - From: "NORM KNAPP" mailto:nknapp%40twowayradio.net> > To: 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.
Re: [Repeater-Builder] Strang new noise in repeater
A few years back the exact same thing was happening here on a VHF simplex Sheriff system. Solution? Take the toy train whistle away from the deputy. I'm not kidding. Chuck WB2EDV - Original Message - From: "NORM KNAPP" To: Sent: Sunday, May 24, 2009 5:24 PM Subject: Re: [Repeater-Builder] Strang new noise in repeater > No, I don't think it is malicious or deliberate. It is almost as if the > repeater is getting into itself. It is not a ham repeater, it is a local > Sheriffs dept. > > - Original Message - > From: Repeater-Builder@yahoogroups.com > To: Repeater-Builder@yahoogroups.com > Sent: Sun May 24 16:03:48 2009 > Subject: Re: [Repeater-Builder] Strang new noise in repeater > > > > Could be someone playing "games" with the users. > > Chuck > WB2EDV > > - Original Message - > From: "NORM KNAPP" <mailto:nknapp%40twowayradio.net> > > To: <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.
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" To: 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 > > > >
Re: [Repeater-Builder] Strang new noise in repeater
Thanks! It doesn't sound that much like a toy. I have heard it several times. The radios have a asci type identifier at the end of their tranmissions. No identifiers after the whistle sound. - Original Message - From: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Sent: Sun May 24 16:19:58 2009 Subject: Re: [Repeater-Builder] Strang new noise in repeater A few years back the exact same thing was happening here on a VHF simplex Sheriff system. Solution? Take the toy train whistle away from the deputy. I'm not kidding. Chuck WB2EDV - Original Message - From: "NORM KNAPP" mailto:nknapp%40twowayradio.net> > To: mailto:Repeater-Builder%40yahoogroups.com> > Sent: Sunday, May 24, 2009 5:24 PM Subject: Re: [Repeater-Builder] Strang new noise in repeater > No, I don't think it is malicious or deliberate. It is almost as if the > repeater is getting into itself. It is not a ham repeater, it is a local > Sheriffs dept. > > - Original Message - > From: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> > mailto:Repeater-Builder%40yahoogroups.com> > > > To: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> > mailto:Repeater-Builder%40yahoogroups.com> > > > Sent: Sun May 24 16:03:48 2009 > Subject: Re: [Repeater-Builder] Strang new noise in repeater > > > > Could be someone playing "games" with the users. > > Chuck > WB2EDV > > - Original Message - > From: "NORM KNAPP" mailto:nknapp%40twowayradio.net> > <mailto:nknapp%40twowayradio.net> > > To: <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.
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 To: Repeater-Builder@yahoogroups.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" mailto:nknapp%40twowayradio.net> > To: 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 > > > >
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" To: 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 > To: Repeater-Builder@yahoogroups.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" <mailto:nknapp%40twowayradio.net> > > To: <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 > > >
Re: [Repeater-Builder] Strang new noise in repeater
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 To: Repeater-Builder@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" mailto:nknapp%40twowayradio.net> > To: 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> > mailto:Repeater-Builder%40yahoogroups.com> > > > To: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net> > <mailto:nknapp%40twowayradio.net> > > To: <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 > > >
Re: [Repeater-Builder] Strang new noise in repeater
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 > > To: Repeater-Builder@yahoogroups.com 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" mailto:nknapp%40twowayradio.net > > > > To: <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 >> > > > <mailto:Repeater-Builder%40yahoogroups.com >> > > >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net >> > >> <mailto:nknapp%40twowayradio.net> > >> To: > <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
Re: [Repeater-Builder] Strang new noise in repeater
Hi Norm, I have seen this a couple times. Once was on an old Motorola Motrac and once on a Mastr II. Both were on UHF and both were because of a receive audio load problem. The fix is making sure you have a speaker load on the receiver. Give that a try and let me know if that seems to do the trick. Another thing to check for is to see if there is any interference on the IF Frequency of the oscillator freq. On the GE its 11.2 MHZ down from the actual freq. Not sure what it is on that model Moto. One more thing, One it’s keyed up, take a screw driver handle and tap lightly around the receiver section. It might just be a bad connection or cold solder joint. Make sure the receiver antenna connection is good from the PCB all the way to the Duplexer as well. Moving the connection (Tighten or loosen the connections) Best Regards Rick --- On Sun, 5/24/09, NORM KNAPP wrote: From: NORM KNAPP Subject: [Repeater-Builder] Strang new noise in repeater To: Repeater-Builder@yahoogroups.com Date: Sunday, May 24, 2009, 5:12 PM 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
Re: [possible spam] Re: [Repeater-Builder] Strang new noise in repeater
I don't belive so. It is a moto MTR2000. Nothing fancy. I didn't install the repeater origionally. I have taken it to the shop for repairs once, over a year ago. About the only constant is time of day. Mornings and evenings mostly. There are at least 2 other VHF repeaters on that same tower. One of the other ones may be doing funny things as well. I have got to investigate further on that. - Original Message - From: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Sent: Sun May 24 23:25:44 2009 Subject: [possible spam] Re: [Repeater-Builder] Strang new noise in repeater 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 > <mailto:Repeater-Builder%40yahoogroups.com> > mailto:Repeater-Builder%40yahoogroups.com> > > > > To: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> buil...@yahoogroups.com <mailto:Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net> > <mailto:nknapp%40twowayradio.net > > > > To: <mailto:Repeater-Builder%40yahoogroups.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> >> <mailto:Repeater-Builder%40yahoogroups.com >> > > > <mailto:Repeater-Builder%40yahoogroups.com> >> > <mailto:Repeater-Builder%40yahoogroups.com >> > > >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com >> > > > <mailto:Repeater-Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net> >> <mailto:nknapp%40twowayradio.net >> > >> <mailto:nknapp%40twowayradio.net> > >> To: > <mailto:Repeater-Builder%40yahoogroups.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 <mailto:nate%40natetech.com>
Re: [possible spam] Re: [Repeater-Builder] Strang new noise in repeater
Update to noise in repeater. One of the other 2 repeaters on the tower has been keyed up a good bit off and on with no modulation, ie someone sitting on a mic or something, but no modulation heard. While this other repeater is up and someone brings the noisy repeter up, the noise happens. I have yet to hear the noise without the second repeater transmitting. I am starting to see a pattern here and will investigate further. Thanks for all the input and keep it coming. N5NPO Norm - Original Message - From: Repeater-Builder@yahoogroups.com To: Repeater-Builder@yahoogroups.com Sent: Sun May 24 23:25:44 2009 Subject: [possible spam] Re: [Repeater-Builder] Strang new noise in repeater 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 > <mailto:Repeater-Builder%40yahoogroups.com> > mailto:Repeater-Builder%40yahoogroups.com> > > > > To: Repeater-Builder@yahoogroups.com > <mailto:Repeater-Builder%40yahoogroups.com> buil...@yahoogroups.com <mailto:Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net> > <mailto:nknapp%40twowayradio.net > > > > To: <mailto:Repeater-Builder%40yahoogroups.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> >> <mailto:Repeater-Builder%40yahoogroups.com >> > > > <mailto:Repeater-Builder%40yahoogroups.com> >> > <mailto:Repeater-Builder%40yahoogroups.com >> > > >> To: Repeater-Builder@yahoogroups.com >> <mailto:Repeater-Builder%40yahoogroups.com> >> <mailto:Repeater-Builder%40yahoogroups.com >> > > > <mailto:Repeater-Builder%40yahoogroups.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" mailto:nknapp%40twowayradio.net> >> <mailto:nknapp%40twowayradio.net >> > >> <mailto:nknapp%40twowayradio.net> > >> To: > <mailto:Repeater-Builder%40yahoogroups.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 <mailto:nate%40natetech.com>
