[digitalradio] Re: VHF and UHF Scanning of public service bands

2010-02-25 Thread W8RIT
Hi Andy, my name is Dave and my call is W8RIT. I do not know of any recent advances in technology regarding public service V/UHF scanning. The most recent upgrade in this area is relatively old, approx 5 years or so. This is the APCO Project-25 digital format. It is used pretty extensively here

[digitalradio] Re: USA digital bandplan chart

2010-02-21 Thread W8RIT
that giving spectrum slices to groupings of digi modes can be beneficial to users. I would like it to be recommended more as a gentleman's agreement, rather than set in stone that ONLY those modes can and should be operated there. A general guideline rather than a law. 73 de W8RIT Dave

[digitalradio] Re: Techs on HF digital

2009-12-26 Thread W8RIT
I'd like to say that I can't agree with Danny's comments any more. I compare it to this: Imagine a DX station @ one end of a football field with the rest of us trying to work him at the other end by yelling our callsigns. The DX is able to able to pick out a callsign and work them. Suddenly, one

[digitalradio] Re: Contesters and DXers should use busy detectors

2009-11-27 Thread W8RIT
Dave W8RIT --- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@... wrote: All contesters and DX pileup participants should use busy detectors! This is quite evident since it has been proven that such types of operation are the source of 99% of harmful interference

[digitalradio] Re: Try “Weak Signal” Digital FM

2009-11-08 Thread W8RIT
Hi Andy, There is a local ham radio club (USECA http://www.usecaarc.com in my area that has a Digi Nite every week. They operate on 145.520 (1 MHz lower than 2M FM calling) @ 7PM. It is not a net but just a group of hams operating in any digital mode they want. Some of the reasoning behind