what state are you in?
----- Original Message ----- From: "Paul Finch" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Thursday, January 12, 2006 12:13 AM Subject: [Repeater-Builder] OT - NOW NOT SO funny interference story > Hello again, > > I am working on a weird interference problem right now for that matter, > it's > been going on for two weeks or so. I have a customer that I maintain a > 800 > MHz LTR Trunk system for. One of the receivers is getting a stable dead > carrier signal 2.5 KHz high in frequency. It is absolutely coming down > the > receive antenna, it's a split receive/transmit site. The tower is 800 > feet > tall. > > I have no idea what the frequencies are in the building and I doubt it ATC > does so I can't run a intermod study and the signal is there 100% of the > time making me think it's not intermod. It's also too stable to be a > transmitter in oscillation. > > I have turned off almost everything in the building, except the National > Weather Service 1000 watt transmitter and I did not have the guts to do > that. The signal is steady with little or no deviation, just a dead > carrier. This is a ATC site by the way and of little help. Today I went > to > another 1000 foot tower about 20 miles to the North and the signal was > there > also but much lower in amplitude so it looks like the origin is South > somewhere. I also checked at my tower 30 miles to the Northwest and did > not > hear the signal. There is another co-channel user about 40 miles > Northeast > and they are not having problems. With the problem on 100% of the time it > looks really like it's the NWS transmitter but from what I see and heard > about their service department I don't expect any help. One thing, if it > were intermod or transmit noise from the NWS I would think I would get > some > kind of modulation that would equate to what we see on the 162.55 > frequency. > > As with the other interference I spoke of earlier I can't see the > interference from any of the spots I have been to so far. If you can't > see > the signal with a receiver you can't track it. > > Sad part? This system is getting turned off in about 45 days, just not > enough customers to pay the ATC bill! I guess it's a good thing, they > will > be moving it to my tower which is not hearing the interference! > > Just talking (or emailing) out loud to myself. > > Paul > > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] Behalf Of Richard > Sent: Wednesday, January 11, 2006 10:20 PM > To: Repeater-Builder@yahoogroups.com > Subject: RE: [Repeater-Builder] OT - funny interference story > > > I concur... This is one of the most interesting groups I've had the > pleasure > of participating in. Indeed, a rare collection of talent in this group. > > Fairly new to the world of repeaters, > > Richard, N7TGB > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com > [mailto:[EMAIL PROTECTED] Behalf Of Tony VE6MVP > Sent: Wednesday, January 11, 2006 2:32 PM > To: Repeater-Builder@yahoogroups.com > Subject: Re: [Repeater-Builder] OT - funny interference story > > > At 03:58 PM 2006-01-11 -0600, you wrote: > > >Very Interesting > > Agreed. Anecdotes like this are always worth reading. > > An excellent means of passing knowledge down the generations. > > Tony (a newbieish ham) > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > 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/
