Re: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-15 Thread Mark A. Holman
Very Interesting Mark , I know that in the past I recall vaugely that I have came accross some sort of oscillation that can be picked up on a particular frequency but the distance you mentioned is something that each of us can probably came across this some time or another. Meanwhile back 2 the

Re: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-12 Thread Paul Kelley
Yup... sounds familiar! In my case it was VHF, and also about a mile away. The blips were pretty strong, but of very short duration (and the scanner apparently never stopped on that frequency!). That goodness for PL/CTCSS/whatever-ya-prefer to call it... Paul, N1BUG Yahoo! Groups Li

Re: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-11 Thread mch
Nate Duehr wrote: > > Don, can you talk your state into flipping input/output the "right" > way around? > > Outputs on UHF here are on the high end! (GRIN... heh.) LOL! Good one! When did the FCC 'flip' the 450-512 MHz bands? ;-P Here in the East, we don't put up with the intrmod products fro

Re: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-11 Thread Nate Duehr
KA9QJG wrote: > Neil, I have a CTCSS decoder 131.8 on My 444.750 Micor unified Repeater. I > Have cable leakage so bad on the input 449.750 it keys up the repeater a Don, can you talk your state into flipping input/output the "right" way around? Outputs on UHF here are on the high end! (GRIN...

RE: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-11 Thread Ken Arck
At 09:46 PM 8/11/2005 -0500, you wrote: >Neil, I have a CTCSS decoder 131.8 on My 444.750 Micor unified Repeater. I >Have cable leakage so bad on the input 449.750 it keys up the repeater a >lot, Even with the PL <---Well...there's always DPL :-) Ken -

RE: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-11 Thread KA9QJG
Neil, I have a CTCSS decoder 131.8 on My 444.750 Micor unified Repeater. I Have cable leakage so bad on the input 449.750 it keys up the repeater a lot, Even with the PL, I Deal with it during the day, But I have been turning it off at night. It has been like this for two weeks unless it rains. I

Re: [Repeater-Builder] Repeater interference problem cured. Caused by Uniden scanner a mile away.

2005-08-11 Thread Neil McKie
Have you considered adding a CTCSS decoder to your repeater? It won't hide the problem ... but you hopefully won't go insane in the process. Neil - WA6KLA Mark Ramsey wrote: > > Whew after nearly a year of interference to my uhf amateur radio > repeater I found the problem. Turned

Re: [Repeater-Builder] Repeater Interference

2004-11-25 Thread Barry Thompson
gt;will start a resistance path to ground. > > > >a good oscilloscope check will indicate > intermittent, as well a VOM check. > > > >Good Hunting ! > > > >Mark Holman, CRO > >AB8RU > >- Original Message - > >From: "Jeff Thomas" &l

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Jim B.
Ken Arck wrote: > At 08:43 AM 11/23/2004 -0700, you wrote: > >>Anyone have an idea what causes this and how to get rid of it? > > > <---AM? If so, your problem isn't RF related, per se. Sounds more like a > case of audio rectification.. > > Ken don't forget about SW...and it doesn't have to b

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Ken Arck
At 09:18 PM 11/23/2004 -0700, you wrote: > >Wow, I'd take a deliberate jammer over having to listen to Rush any >day! ;-) > >(Oh come on, someone had to say it.)

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Nate Duehr
On Nov 23, 2004, at 6:51 PM, Mark Holman wrote: >> >> clear. I could hear everything Rush Limbaugh was saying. Wow, I'd take a deliberate jammer over having to listen to Rush any day! ;-) (Oh come on, someone had to say it.) Nate WY0X Yahoo! Groups Links <*> To visit your group on th

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Eric Lemmon
Jeff, Please advise the make and model of your repeater, and its operating frequencies. A local repeater once had a similar problem, wherein an AM station's 104th harmonic was beating with the UHF MICOR's exciter output (which is at VHF) and was then slope-detected by the repeater's receiver. T

Re: [Repeater-Builder] Repeater Interference]

2004-11-24 Thread Eric Lemmon
Jeff, Please advise the make and model of your repeater, and its operating frequencies. A local repeater once had a similar problem, wherein an AM station's 104th harmonic was beating with the UHF MICOR's exciter output (which is at VHF) and was then slope-detected by the repeater's receiver. T

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Jeff Thomas
2004 7:12 PM Subject: Re: [Repeater-Builder] Repeater Interference > > At 08:51 PM 11/23/2004 -0500, you wrote: > >>I would start with the Ground to see if the continuity of Resistance is >>Zero >>Ohms. from Chasis, Cabinet, rack, etc.. especially green crud from >

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Ken Arck
At 08:51 PM 11/23/2004 -0500, you wrote: >I would start with the Ground to see if the continuity of Resistance is Zero >Ohms. from Chasis, Cabinet, rack, etc.. especially green crud from moisture >will start a resistance path to ground. <---That would be my first take on his problem. Sounds l

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Neal Newman
: "Jeff Thomas" <[EMAIL PROTECTED]> To: Sent: Tuesday, November 23, 2004 6:25 PM Subject: Re: [Repeater-Builder] Repeater Interference Thanks Mike, The station is 1420 AM. Nothing else was changed besides the duplexer. The AM station audio is audible during the entire t

Re: [Repeater-Builder] Repeater Interference

2004-11-24 Thread Mark Holman
- From: "Jeff Thomas" <[EMAIL PROTECTED]> To: Sent: Tuesday, November 23, 2004 6:25 PM Subject: Re: [Repeater-Builder] Repeater Interference > > Thanks Mike, > > The station is 1420 AM. > > Nothing else was changed besides the duplexer. > > The AM station

Re: [Repeater-Builder] Repeater Interference

2004-11-23 Thread Jeff Thomas
. I could hear everything Rush Limbaugh was saying. Thanks for your help. Jeff - W2JRT - Original Message - From: "Mike WA6ILQ" <[EMAIL PROTECTED]> To: Sent: Tuesday, November 23, 2004 1:29 PM Subject: Re: [Repeater-Builder] Repeater Interference > > At 07:43

Re: [Repeater-Builder] Repeater Interference

2004-11-23 Thread Jeff Thomas
Hi Ken, Yes it is 1420 AM. How do I remove it? As soon as I put my mobile notch duplexer back in, the AM station was gone. Thanks, Jeff - Original Message - From: "Ken Arck" <[EMAIL PROTECTED]> To: Sent: Tuesday, November 23, 2004 3:37 PM Subject: Re: [Repeater-B

Re: [Repeater-Builder] Repeater Interference

2004-11-23 Thread Mike WA6ILQ
At 07:43 AM 11/23/04, you wrote: >I have a 70cm repeater that is located about .75 mile from a commercial >radio station. > >I was using a Cellwave Notch type mobile duplexer and experienced no >problems what so ever. Recently I purchased a new Sinclair Bp/Br Q318GR, 4 >cavity duplexer and replac

Re: [Repeater-Builder] Repeater Interference

2004-11-23 Thread Ken Arck
At 08:43 AM 11/23/2004 -0700, you wrote: >Anyone have an idea what causes this and how to get rid of it? <---AM? If so, your problem isn't RF related, per se. Sounds more like a case of audio rectification.. Ken -- Presi