The other way you could help rule out anything on that tower would be to get a list of the transmitters there and listen to their frequency and compare when you're hearing the interference. Make take a day or two to get through them all, but that should help.
i.e. Scanner or extra receiver tuned to example 151.085 at the :53 transmission, nothing heard and no key up during that time, move on to the next frequency and listen at the :23 transmission, etc. If the tower owner knows they are running a data specific type system that would be the one to start with. If you don't want to bug him again, start with a search of the FCC database for those coordinates. http://www.fcc.gov click on search, etc. You can enter the lat/lon and a radius around and list out the transmitters. Chuck n0nhj Scott Overstreet wrote: > Hello All---- > > Many thanks to all of you who have responded to my call for help in > identifing our "Mystery Signal"------all of your comments and especially > the signal analysis work done by Rodger, Nate, Joe and others are > helping with our task. Please keep up the effort as we have not found > our signal yet. > > Preliminary Doppler DF work has us surounding a large scale municiple > tower with what we have labled our area of uncertainity----a half mile > diameter circle or so. Distant vectors from clear areas converge there > but close in vectors disperce in almost all directions apparently due to > reflections from tall buildings, cars, metel doors, roofs etc.. We are > now rounding up a team of experienced DF'ers with other techniques. I > have succeded in making contact with the guy that is responsible for the > Motorola gear on the tower----he says that our signal isn't comming from > any of his stuff but that there is other gear in the radio room and that > he will look it over while monitoring by service monitor---a start there. > > From your responses so far, it sounds like we may well be looking for a > piece of ham gear that is mistakenly on our repeater input----with this > we will get back into the neighborhoods around the tower for a new look > and spread the word through the packet guys. > > Again, many thanks to all of you-----I'll keep you informed. > > Scott > > > > ------------------------------------------------------------------------ > > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.409 / Virus Database: 268.15.18/585 - Release Date: 12/13/2006 >
