As I understand it they are using apco25 just like any other amateur mode. I don't have any data about range comparisons. I would be interested in seeing how close to the noise floor an apco25 signal can go before it becomes unintelligible. Dave Marthouse N2AAM [log in to unmask] ----- Original Message ----- From: "Jeff Kenyon" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, December 02, 2005 1:09 PM Subject: Re: Project-25 digital modulation on the ham bands? > What are they doing range testing or what? Any APCO-25 repeaters on the > ham bands as of yet that anyon knows of? > > > > > > On Thu, 1 Dec 2005, Dave Marthouse wrote: > > > Jeff, > > > > There are groups of hams using apco25 in small pockets around the country. > > I know of a group in New Jersey as well as a few in Illinois, Texas and > > Arizona. I'm sure that there are a few more scattered around the nation. > > > > Dave Marthouse N2AAM > > [log in to unmask] > > > > > > > > ----- Original Message ----- > > From: "Jeff Kenyon" <[log in to unmask]> > > To: <[log in to unmask]> > > Sent: Thursday, December 01, 2005 7:14 PM > > Subject: Project-25 digital modulation on the ham bands? > > > > > > > Hi everyone, I was just wondering if anyone has heard of anyone using > > > APCO-25 Digital Modulation on the ham bands? On Tuesday I was looking > > > around 2-meters and thought I heard a blip of data that sounded like > > > Astro-25 digital data. I couldn't tell for sure as the signal was weak, > > > but wasn't using a digital scanner that I have, but just the THF6. I'm > > > just wondering if anyone else has heard anything like this? > > > > > > > > > >