Re: [BCD396XT] Re: Dstar
- I think the big issue with its slow growth are the benefits vs cost
issues. Most people have analog equipment. Relatively few have D-STAR.
So, in an emergency it will be primarily analog that will be useful.
Also, there is a difference between digital and encrypted. D-STAR is not
encrypted in any form, so it's legal per Part 97. You can purchase a
dongle and monitor the conversations.
David Klippel wrote:
> I believe you're right that aren't any radio manufactures even though
> Kenwood said they would and had a radio (built by Icom) initially that
> they since dropped. There are other manufactures providing a dongle
> option for use on a computer.
> Personally I don't understand how the FCC permitted this D-Star for
> Amateur Radio. My understanding is that is it a licensed technology and
> not open and free for anyone to use. This makes it more like an
> encrypted/scrambled private transmission as well as a commercial pay to
> play option which are counter to the basis of the hobby. I am sure this
> is also a big part of its slow growth.
> On 6/4/2012 5:08 PM, Alex wrote:
>> Who else is promoting D-STAR? Other than Icom I haven't seen any
>> manufacturer interested in using it. Kenwood and Yaesu/Vertex have
>> held back (probably a wait-and-see).
>> --- In BCD396XT@yahoogroups.com <mailto:BCD396XT%40yahoogroups.com>,
>> MCH <mch@...> wrote:
>>> And technically speaking (AKA picking nits), D-STAR is a JARL format,
>>> not Icom. Icom just happens to be the largest (but not only)
>> promoter of
>>> the format outside Japan.
>>> Joe M.
> [Non-text portions of this message have been removed]
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- Technically you are correct D-STAR is open but the codec is not and
requires a license to decode so in function it is essentially
'encrypted/scrambled'. Yes, you can purchase a dongle but it is still
using a license Codec that you paid for. You can't legally reverse
engineer the Codec and listen or transmit. The cost benefit is a big
part of the issue and with just one manufacture using it does not help.
If there were more options and free/open Codec in use it would be much
further along in growth and acceptance.
I feel a similar thing is happening with HD Radio. There are plenty of
broadcasters but unfortunately not many radios with it built in. The car
radio is becoming common to have HD. If you want to listen to HD on the
beach or park where a small portable radio would be used or even in a
home stereo or A/V receiver your options are very limited.
This could go on but as for the original scanning question they need a
license for the Codec it is a small audience for them to add the cost.
Though as a Ham it would great to be able to monitor the D-STAR activity
and maybe become convinced it is worth the cost.
On 6/4/2012 6:32 PM, MCH wrote:
> I think the big issue with its slow growth are the benefits vs cost
> issues. Most people have analog equipment. Relatively few have D-STAR.
> So, in an emergency it will be primarily analog that will be useful.
> Also, there is a difference between digital and encrypted. D-STAR is not
> encrypted in any form, so it's legal per Part 97. You can purchase a
> dongle and monitor the conversations.
[Non-text portions of this message have been removed]
- About a year and half ago the club I was part of (before moving to a
different city) invited a rep from Icom to come in and talk about
their radios with the focus primarily on the D-Star radios. While the
technology is impressive, I don't see it ever becoming wide spread in
As Joe has pointed out, in an emergency it will be primarily analog
that is used. Where I live ARES is part of the county's emergency
plan so our communications need to be easily and inexpensively
monitored by numerous agencies from local emergency services to the
Red Cross. Costs of D-Star radios would prevent that.
At 06:32 PM 6/4/2012, MCH wrote:
>I think the big issue with its slow growth are the benefits vs cost
>issues. Most people have analog equipment. Relatively few have D-STAR.
>So, in an emergency it will be primarily analog that will be useful.
- PC board real estate is expensive, microcode space isn't. Given the component density already in the 396 I don't think it is quite so easy to cram one more chip in there. If Uniden really wanted D-STAR then they'd likely just license the codec algorithms and code that into the microprocessor just like all the other digital codecs that are currently processed.
--- In BCD396XT@yahoogroups.com, "Tony Langdon, VK3JED" <vk3jed@...> wrote:
> At 07:06 AM 6/5/2012, you wrote:
> >If DVSI ever releases the code for the AMBE codec used in the radios
> >then any radio like the 396XT could do it in its firmware.
> All the manufacturers have to do is include the right chip in their
> scanner to handle the AMBE audio (same as they do for IMBE that P25
> uses). Probably be one that can do both formats, since both are DVSI
> products. The test of the D-STAR spec is open, and can (and has!) be
> implemented by third parties.
> 73 de VK3JED / VK3IRL