Hello list, I have a novel idea...
Remove the new duplexer you bought and replace it with the 6-pack mobile duplexer without the problem:) Most repeater owners will agree if it's not broke "DON'T" fix it! Regards, Barry --- Neal Newman <[EMAIL PROTECTED]> wrote: > First off You changed the Duplexer? > how about the cables? > I have found that a bad connection or Oxidation acts > as a diode. and > will allow the AM stations Audio to be heard.. I > have this problem with > a telco Box the Phone company placed > Exactly 1/4 wavelength away From My 10 kw AM > trnamitter.. Everyone in > the Neighborhood hears my radio station on their > Phones.. But its Not my > problem... Its some Engineers problem at thePhone > Company. How stupid > can One Be.. I know the answer He has an > Engineering degree In theory > It should Be ok where it s... NOT... > > Mark Holman wrote: > > >I would get in touch with the station Engineer and > ask him or her if they > >may adjusted something, added or removed anything > within the past time frame > >that this interference started. If they say No > then you may have something > >on your end just went out. > > > >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. > > > >a good oscilloscope check will indicate > intermittent, as well a VOM check. > > > >Good Hunting ! > > > >Mark Holman, CRO > >AB8RU > >----- Original Message ----- > >From: "Jeff Thomas" <[EMAIL PROTECTED]> > >To: <[email protected]> > >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 > time the repeater > >>transmitter is transmitting, even during the hang > time. > >> > >>It is a much lower level compared to the repeated > audio and it is > >>perfectly > >>clear. I could hear everything Rush Limbaugh was > saying. > >> > >>Thanks for your help. > >>Jeff - W2JRT > >> > >> > >>----- Original Message ----- > >>From: "Mike WA6ILQ" <[EMAIL PROTECTED]> > >>To: <[email protected]> > >>Sent: Tuesday, November 23, 2004 1:29 PM > >>Subject: Re: [Repeater-Builder] Repeater > Interference > >> > >> > >> > >> > >>>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 replaced the Cellwave. This > morning I have noticed > >>>>that > >>>>the nearby radio station is now coming through > on the repeaters > >>>>transmitted > >>>>signal. > >>>> > >>>>Anyone have an idea what causes this and how to > get rid of it? > >>>> > >>>>Thanks, > >>>>Jeff > >>>> > >>>> > >>>Is the station AM or FM ??? > >>> > >>>What else was changed besides swapping out the > duplexer? > >>> > >>>Is the station audio audible during the received > signal only, or is it > >>>also there during the carrier delay ?? (the time > period that the TX is > >>>still up after the RX squelch closes and before > the repeater carrier > >>>drops). > >>> > >>>Can you hear it under the ID? > >>> > >>>How loud is it compared to user audio or ID > audio? > >>> > >>>Mike WA6ILQ > >>> > >>> > >>> > >>> > >>> > >>> > >>>Yahoo! Groups Links > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >>> > >> > >> > >> > >> > >> > >> > >>Yahoo! Groups Links > >> > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail 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/
