I fail to see why folks are getting excited over DMR. To me, the audio sounds Terrible. Perhaps it's just the excitement of being on the bleeding edge.
Similar problems happened with FM when it was narrow-banded. Give me the Nice sound of a well engineered WB FM audio any day. Also, who remembers the fiasco with the LA Fire Departments trial with DMR some years ago. Digital voice has NO place in a well engineered product such as Elecraft Produces. Just one mans opinion. 73, Dick, W1KSZ -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Walter Underwood Sent: Friday, September 18, 2015 9:02 AM To: Elecraft Reflector Subject: Re: [Elecraft] K3 Digital Voice Mode - our future? The D-Star protocol is published and open, but all the radios use a proprietary, licensed voice codec (AMBE). Also, Icom has registered the trademark “D-STAR”. It would be possible to run D-Star with an open source codec (like Codec2), but it probably would not interoperate with other D-Star radios. Codec2 was developed by Dave Rowe, VK5DGR. Some people have argued that the proprietary AMBE codec is equivalent to encryption, and not legal for US amateur radio us. I could buy that. wunder K6WRU CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 18, 2015, at 4:49 AM, Stephen Shearer <sm.shearer...@gmail.com> wrote: > > from some reading I have done recently, D-star is an open source from Japan > ham community. > > I agree, if it's not open, it's not ham radio. > > We use FM on 10, 6, and 2 - modes included in the KX3/K3s, maybe the future > should include d-star. > > 73, steve WB3LGC > > On 17-Sep-15 9:28 PM, Don Wilhelm wrote: >> You have listed 3 digital voice modes that do not talk to each other. >> Furthermore, I recall that these are proprietary coding schemes. >> That is not "Ham Radio" in my mind. Ham Radio is "everyone can talk >> to everyone else", and those digital voice systems where you can only >> talk to those hams who have purchased the same brand of equipment as >> you have selected is more like commercial circuits where you want to >> shut out those who do not 'speak the same language that you do'. >> >> I don't think proprietary protocols belong on the ham bands - just my >> not so humble opinion. Yes, I am also opposed to proprietary data modes. >> >> 73, >> Don W3FPR >> >> On 9/17/2015 9:03 PM, Robert Nobis wrote: >>> Take a look at the digital voice modes that are being used on the >>> VHF and UHF bands: DMR, D-STAR and Fusion. >>> >>> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > wun...@wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w1...@earthlink.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
