[aprssig] OT: Yaesu to release digital amateur radio gear

Gregg Wonderly gregg at wonderly.org
Thu Dec 29 12:03:17 EST 2011

I'm on the fence on this one.  If you look at the table labeled "Compare Amateur 
digital communications specifications", there is nothing notable about bandwidth 
efficiency for P-25 vs D-Star.   Both are at 4.8khz per 6.25khz of bandwidth.  
P-25 just uses a full 12.5Khz to get to 9.6khz of data "speed".  Having that 
speed available, is a plus, but it's not necessarily more efficient to "use" P-25.

We really don't need a lot of "dividing" forces in Amateur radio, splitting the 
investment by users and causing "clubs" to have to purchase "expensive systems" 
to put up repeaters or other "services".

In the end, we need to do something with digital that provides "micro cellular" 
facilities that will allow for "more bandwidth" to be used by single users, as 
well as provide "less effect" on communications, overall, when something is not 

D-Star is too pricy at the high end.  It should be about 1/2 that price for 
1.2Ghz radios.  People should be able to spend only $50.00 more to get D-Star 
enabled radios of a particular type.  But, ultimately, there is a lot of extra 
hardware required, and the integration of that hardware, and the manufacturing 
facilities all have to be paid for, some how...

Gregg Wonderly

On 12/27/2011 10:25 AM, Amateur Radio WB8NUT wrote:
> D-Star is hardly a waste of time and money. D-Star was developed FOR amateur 
> radio. P25 was developed for the Public Sector market.
> D-Star is wonderful, and while the Codec is proprietary as I believe is the 
> case with the P25 Codec, the rest of D-Star is an open standard.
> Frankly, I think Yaesu trying to implement the P25 digital mode instead of 
> going with the ever growing and already established D-Star digital is a 
> mistake. Just like their Wires linking protocol. They went this way while 
> others went with Echolink. Hardly anyone in the U.S. has implemented Wires.
> Here we go with the VHS v Beta mess again. This time within amateur radio.
> But if anything good comes from this, I think it will mean Icom will get more 
> aggressive to try and bury P25 in the amateur market.
> Duffy
> www.wb8nut.com
> On 12/27/11 10:22 AM, Jason Rausch wrote:
>> I am going to go out on a limb and say that Yaesu is trying to introduce a 
>> P25 capable HT to the amateur market.  Very exciting to see this, if that is 
>> the case.  Coming from a Motorola LMR background, I have always felt that 
>> D-Star was a waste of time and money and the effort should have been pushed 
>> down the P25 road.
>> Jason Rausch - KE4NYV
>> RPC Electronics, LLC
>> www.rpc-electronics.com
>> --- On Tue, 12/27/11, Bob Burns W9RXR<w9rxr_ at rlburns.net>  wrote:
>>> From: Bob Burns W9RXR<w9rxr_ at rlburns.net>
>>> Subject: [aprssig] OT: Yaesu to release digital amateur radio gear
>>> To: "TAPR APRS Mailing List"<aprssig at tapr.org>
>>> Date: Tuesday, December 27, 2011, 10:00 AM
>>> Interesting document posted on
>>> Yaesu's web site:
>>> http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=111&encProdID=8B1A771611E9963B6AB769C0EC0F6B68&DivisionID=65&isArchived=0 
>>> In case that URL gets munged, go to the Yaesu home page at
>>> http://www.yaesu.com/ , hover your mouse over Products
>>> in the menu bar, then click on VHF/UHF Handhelds or VHF/UHF
>>> Mobile Transceivers in the drop-down menu. In the horizontal
>>> scrolling window of handhelds or mobiles, you'll see a blank
>>> spot labeled "Digital NEW!". Click on that and you'll find a
>>> link to the PDF of this document.
>>> Bob...
>>> _______________________________________________
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