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New Dstar radio rumor
Posted: Sun Mar 05, 2006 3:20 pm
by willbartlett
Found this Pic on a .RU site. Looks cool. Be looking for this at dayton....
Will
Posted: Sun Mar 05, 2006 5:17 pm
by N4DES
Posted: Sun Mar 05, 2006 6:50 pm
by Nexrad16
The UHF side does not seem that useful. Hmmm.
Icom D-Star HT...
Posted: Mon Mar 06, 2006 3:28 am
by Tom in D.C.
I am editing my original post for additional clarity since some appear to
not read too well:
Look carefully at this:
http://www.rigpix.com/icom/id91.htm
It clearly says 430-440 for the USA, which may or may not be a typo, but
that's what it says today, right now, which is why I posted what I posted.
Still a slick looking unit.
Posted: Mon Mar 06, 2006 5:59 pm
by Rayjk110
Looks like this may be their new style of HT's?
http://icomamerica.com/products/amateur/p7a/
Posted: Wed Mar 08, 2006 5:26 am
by fineshot1
Obviously those specs are for the asian and european version. When they come out with the A (USA) version it should reflect the proper specs.
I'm a little disturbed by DSTAR
Posted: Wed Mar 08, 2006 6:29 am
by Wowbagger
I'm a bit disturbed by DSTAR as it applies to the amateur radio community.
I don't object to the idea of moving to a narrower band digital system - quite the contrary.
I *am* disturbed by the selection of a codec that is not freely available. The whole idea of amateur radio is *supposed* to be that, if needed or desired, hams can build their own gear. Sure, you aren't going to build a modern HT at home - unless you happen to have a multi-hundred-thousand dollar pick-and-place machine in your basement. But you CAN build a 2 meter transceiver - it may be a big chunk, but you can build it.
Now, the problem I have with DSTAR is that the AMBE vocoder is NOT freely available - so if you want to build your own DSTAR rig you are going to have to buy a vocoder board from DVSI or a licensed reseller - no ifs, ands, or buts. You cannot feed the IF into your PC and use a program on your PC to decode the AMBE. You cannot hack on the AMBE vocoder to make an improvement.
Consider narrow band FM, or SSB, or any of the other modes created by hams. You will NOT see any innovation like that in DSTAR. If you play in DSTAR, you are going to be an appliance operator, period.
Now, when it comes to commercial radio I have little problem with proprietary codecs - that's part of the licensing to make a commercial radio.
But I'd really rather see DSTAR using something like Speex than AMBE.
(the proceeding is a personal opinion by N0YKG, and has absolutely nothing to do with any position Aeroflex may take).