Re: Codec2

"David Lake (dlake)" <dlake@...>

"What concerns me more is the (political) resistance to allowing
interoperability/gateways between systems."


Article 1.56 of the ITU Radio Regulations define amateur service as "A
Radiocommunication service for the purpose of self-training,
intercommunications and technical investigations carried out by
amateurs, that is by duly authorized persons interested in radio
technique solely with a personal aim and without pecuniary interest."

That sounds pretty clear to me. Intercommunication, technical
investigations, no pecuniary interest.

BTW, you have not mentioned Motorola. So far, they are the worst
offender and they have bite. Icom are trying to be open and so far,
things have gone pretty well with them (especially Icom US). It's early
days for Yaesu.

Hardware is only half the battle - software and protocols are needed to
interconnect the hardware. Both parts are important, and that is what I
hope this group manages to achieve.


-----Original Message-----
[] On Behalf Of
Sent: Tuesday, May 22, 2012 7:52 PM
Subject: [UniversalDigitalRadio] Re: Codec2

"this is something that should have been done ten years ago"


Unfortunately it wasn't, and that the biggest issue I have with the
development of D-Star. Having said that, Amateur Radio is already a
splintered hobby with many niches, so it's nothing new.

What concerns me more is the (political) resistance to allowing
interoperability/gateways between systems. The transcoding, gateways and
transports themselves are all relatively minor feats in comparison. All
it takes is "someone" saying they won't allow gating from IRLP to
Echolink, Echolink to D-Star, or P25 to whatever, and a segment becomes
isolated. We're our own worst enemy and we'll pay for it in real

I don't want to have to take three HT with me when I leave the house, or
have a rack of three mobile rigs in the car. I also don't want my
investment in D-Star to become worthless.

The Icom/Yaesu situation is a classic. Can you imagine a CW/AM/SSB/FM
transceiver that would only work with another transceiver of the same
brand? That's effectively what we're talking about.

I really think hardware is the key. An extensible, fully open, software
defined, HT, mobile and base with enough processing power on-board to
handle whatever is required, even if it has to have an AMBE chip sitting
to the side for backwards compatibility. Give the developers the
platform and let them have at it.

Icom is the incumbent with the monopoly. Yeasu has played the FUD card
with their "Digital Vision" document and the subsequent presentation of
their solution at Dayton. We'll be the ones that pay if we play the

--- In, Perry Chamberlain
<canoeman@...> wrote:

Although this is something that should have been done ten years ago,
and is cool amateur radio engineering, the hundreds, and hundreds of
thousands of dollars that has been spent on the AMBE CODEC EMBEDED
equipment, is a massive barrier to this ever changing the Dstar system.
And why yaesu, has decided to come out with yet another digital mode, is
( just a note, I own 6 yeasu radios, so I am a yaesu fan) But, thats
what amateur radio is all about. But it would be nice if we could
choose a common codec.
I'm financially entrenched in Icom D-star now, so I'm locked in.


Perry Chamberlain


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