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 Repeater-Builder@yahoogroups.com
To: Repeater-Builder@yahoogroups.com 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
Repeater-Builder@yahoogroups.com mailto:Repeater-Builder%40yahoogroups.com
To: Repeater-Builder@yahoogroups.com
mailto:Repeater-Builder%40yahoogroups.com Repeater-
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 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 5:48 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
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
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 nkn...@twowayradio.net mailto:nknapp%40twowayradio.net
mailto:nknapp%40twowayradio.net
mailto:nknapp%40twowayradio.net
To: Repeater-Builder@yahoogroups.com
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
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Nate Duehr
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