I'm looking at the pager freq with the SA. The dev looks wide to me. I see about 15 Khz peak to peak. Is that normal?
Also I see much bigger spikes. -- Tim :wq On Aug 21, 2010, at 6:59 AM, MCH wrote: > Again, just like a spur. > > Does it have a 'grungy' sound to it when you hear it on your input? > > Might also be worth putting the Spectrum Analyzer on your input to see > if you can see it drifting through the frequency - or drifting onto it. > > Joe M. > > Tim Sawyer wrote: > > Another tidbit about this problem is that it's clean in the mornings. The > > paging transmitter can be going off like crazy and the repeater will be > > totally clean in carrier squelch. As the day progresses it gets worse. > > -- > > Tim > > :wq > > > > On Aug 20, 2010, at 7:51 PM, Chuck Kelsey wrote: > > > >> I agree, if you don't hear anything else in the mix, and it pretty much > >> happens for the full length of the page, it's likely a spur on the paging > >> transmitter, at least that's what I'd be looking at. > >> > >> Chuck > >> WB2EDV > >> > >> > >> > >> ----- Original Message ----- > >> From: "MCH" <[email protected]> > >> To: <[email protected]> > >> Sent: Friday, August 20, 2010 10:46 PM > >> Subject: Re: [Repeater-Builder] Re: Intermod Calculation > >> > >> > >>> Could be a spur. Can you hear any other audio with the page? (ever) > >>> > >>> Joe M. > >>> > >>> Tim Sawyer wrote: > >>>> > >>>> It seems to pick up most of the page. Occasionally the beginning is > >>>> missing or it will get just the very end. It always seems to drop at the > >>>> same time as the page. > >>>> > >>>> -- > >>>> Tim > >>>> :wq > >>>> > >>>> On Aug 20, 2010, at 4:38 PM, Chuck Kelsey wrote: > >>>> > >>>>> > >>>>> Does the entire page happen, or does it abruptly stop part way through > >>>>> some > >>>>> of the time? Partial page would indicate to me that another > >>>>> transmitter is > >>>>> in the mix and dropping before the pager does. > >>>>> > >>>>> However, I had a situation where there were four paging sites > >>>>> scattered in > >>>>> the county on the same frequency and one of the transmitters was > >>>>> spurious > >>>>> and getting into my receiver. In that case, I always heard the entire > >>>>> page, > >>>>> but only when that particular transmitter came up. > >>>>> > >>>>> Chuck > >>>>> WB2EDV > >>>>> > >>>>> ----- Original Message ----- > >>>>> From: "Tim - WD6AWP" <[email protected] <mailto:tisawyer%40gmail.com>> > >>>>> To: <[email protected] > >>>>> <mailto:Repeater-Builder%40yahoogroups.com>> > >>>>> Sent: Friday, August 20, 2010 7:27 PM > >>>>> Subject: [Repeater-Builder] Re: Intermod Calculation > >>>>> > >>>>>> It occurs whether or not the repeater transmitter is keyed. > >>>>>> > >>>>>> --- In [email protected] > >>>>> <mailto:Repeater-Builder%40yahoogroups.com>, "Jeff DePolo" <j...@...> > >>>>> wrote: > >>>>>>> > >>>>>>> Before we get into the math, an important question that needs to be > >>>>>>> answered > >>>>>>> is whether or not this mix occurs when your repeater transmitter is > >>>>>>> unkeyed. > >>>>>>> > >>>>>>> > >>>>>>> --- Jeff WN3A > >>>>>>> > >>>>>>>> -----Original Message----- > >>>>>>>> From: [email protected] > >>>>> <mailto:Repeater-Builder%40yahoogroups.com> > >>>>>>>> [mailto:[email protected] > >>>>> <mailto:Repeater-Builder%40yahoogroups.com>] On Behalf Of Tim Sawyer > >>>>>>>> Sent: Friday, August 20, 2010 6:36 PM > >>>>>>>> To: [email protected] > >>>>> <mailto:Repeater-Builder%40yahoogroups.com> > >>>>>>>> Subject: [Repeater-Builder] Intermod Calculation > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> I have paging intermod from 157.740 Mhz. My receiver is on > >>>>>>>> 144.540 Mhz. I'm 100% sure there is another transmitter > >>>>>>>> involved in the mix because sometimes the pager is > >>>>>>>> transmitting and I have no interference. > >>>>>>>> > >>>>>>>> I have an intermod calculator program but it wants all the > >>>>>>>> known transmitters and the target receiver. But I need to > >>>>>>>> solve for an unknown transmitter. Is there a way to calculate > >>>>>>>> the other possible soruce(s)? > >>>>>>>> -- > >>>>>>>> Tim > >>>>>>>> :wq > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>> ------------------------------------ > >>>>>> > >>>>>> > >>>>>> > >>>>>> Yahoo! Groups Links > >>>>>> > >>>>>> > >>>>>> > >>>>> ---------------------------------------------------------- > >>>>> > >>>>> No virus found in this incoming message. > >>>>> Checked by AVG - www.avg.com <http://www.avg.com> > >>>>> Version: 9.0.851 / Virus Database: 271.1.1/3084 - Release Date: 08/20/10 > >>>>> 14:35:00 > >>>>> > >>>> > >>>> > >>>> > >>> > >>> ------------------------------------ > >>> > >>> > >>> > >>> Yahoo! Groups Links > >>> > >>> > >>> > >> > >> ---------------------------------------------------------- > >> > >> > >> > >> No virus found in this incoming message. > >> Checked by AVG - www.avg.com > >> Version: 9.0.851 / Virus Database: 271.1.1/3084 - Release Date: 08/20/10 > >> 14:35:00 > >> > >> > >> > >> ------------------------------------ > >> > >> > >> > >> Yahoo! Groups Links > >> > >> > >> > > > > > > > > ------------------------------------ > > > > > > > > Yahoo! Groups Links > > > > > > > > > > ---------------------------------------------------------- > > > > > > Internal Virus Database is out of date. > > Checked by AVG - www.avg.com > > Version: 9.0.783 / Virus Database: 271.1.1/2746 - Release Date: 03/14/10 > > 03:33:00 > > >
