my 2 penny worth, what happens with the rptr aerial disconnected if it is the clean the signal is coming down the aerial, try using a piece of coax cut as a 1/4 wave stubb on the rptr rx input, this is of course cut to the offending freq
Steve, M1SWB ----- Original Message ----- From: "Leroy A. M. Baptiste" <[email protected]> To: <[email protected]> Sent: Thursday, March 04, 2010 3:53 PM Subject: RE: [Repeater-Builder] Interference > When you key up the repeater, and you release, the > repeater is held open (Sometimes), and you can > hear the interference coming in. If I disconnect > the FM Station, the repeater is as clean as a > whistle. > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On > Behalf Of Chris Quirk > Sent: Thursday, March 04, 2010 11:34 PM > To: [email protected] > Subject: Re: [Repeater-Builder] Interference > > > > Interesting problem, can you describe the > interference?? > > --- On Thu, 3/4/10, wd8chl <[email protected]> > wrote: > > > > From: wd8chl <[email protected]> > Subject: Re: [Repeater-Builder] > Interference > To: [email protected] > Date: Thursday, March 4, 2010, 6:57 AM > > > On 3/4/2010 9:40 AM, Leroy A. M. Baptiste > wrote: > > The only other station in the building > is on > > 107.500MHz > > > > It could also be from an AM station on 600 > KHZ +/-10 KHz. > > > -----Original Message----- > > From: [email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> > > [mailto:[email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> ] On > > Behalf Of wd8chl > > Sent: Thursday, March 04, 2010 10:21 PM > > To: [email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> > > Subject: Re: [Repeater-Builder] > Interference > > > > > > > > On 3/4/2010 8:56 AM, Leroy A. M. > Baptiste wrote: > >> Hello all, I am having some > interference > > problems, > >> it is coming from an FM transmitter on > > 94.500MHz, > >> and getting into the Amateur Radio > repeater's > >> receiver on 146.1600MHz. It is not > there all the > >> time, but when the repeater is keyed > up, you can > >> hear it getting in. The 2 Meter > repeater is fed > >> with heliax cable from the duplexer to > the > >> antenna, the transmission line on the > FM station > >> is ordinary coaxial cable, the power > output is > >> about 300 Watts, any ideas? > >> > >> > >> > >> Leroy. J39AI > >> > >> > > > > Is there another FM station on either > 95.1 or > > 93.9? Guess what-600 KHz! > > Natural intermod source! > > > ------------------------------------ > > > > Yahoo! Groups Links > > http://groups.yahoo.com/group/Repeater-Builder/ > <http://groups.yahoo.com/group/Repeater-Builder/> > > http://groups.yahoo.com/group/Repeater-Builder/joi > n > <http://groups.yahoo.com/group/Repeater-Builder/jo > in> > (Yahoo! ID required) > > [email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> > > [email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> > > [email protected] > <http://us.mc456.mail.yahoo.com/mc/compose?to=Repe > [email protected]> > > <http://docs.yahoo.com/info/terms/> > > > > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
