Chris Fowler wrote:
Has ICOM extended the spec so that Yaesu can not make a compliant radio?
Yes, the codec is locked down but I don't see what would prevent Alinco
from making a HT that can talk to an ICOM repeater.
John D. Hays wrote:
Anyone can make a D-STAR air protocol
Hi Folks,
No it isn't 'true'. The codec used is the one defined by the D-STAR spec. It
is the DVSI AMBE codec and is, I am told, the same as that used in P25
systems.
There are several non-Icom projects, like the DVDongle and the several 'non
icom' repeater stacks running today. With NO Icom
--- In dstar_digital@yahoogroups.com, Ted Wrobel twro...@... wrote:
Hi Folks,
The codec used is the one defined by the D-STAR spec. It is the DVSI AMBE
codec and is, I am told, the same as that used in P25 systems.
For the record, P25 uses DVSI's IMBE vocoder. It's similar to the AMBE
On Mar 17, 2010, at 11:45 AM, kn4aq wrote:
For the record, P25 uses DVSI's IMBE vocoder. It's similar to the
AMBE used in D-STAR, but not identical.
See page 81-82 of this document: http://www.p25.com/resources/P25TrainingGuide.pdf
(Phase 2 uses AMBE+2)
John D. Hays
Amateur Radio
A couple of years ago, I talked to a Kenwood manager who discussed Kenwood's
approach to DStar.
Short term, there are some tactical issues. Right now, some agencies (e.g.
Emergency Centers that want some Ham gear in there) with government grants are
required to follow federal procurement
On Wed, 2010-03-17 at 12:30 -0700, J. Moen wrote:
Longer term, Kenwood's business model is to focus on products with a
reasonable margin, and they are not interested in entering a new
market and seeing a price war that would reduce traditional margins.
So in the meantime, Kenwood is
It is a question of the G2 network at this point, there is a lot of politics
going on about who and what can connect, but the technology exists.
Maybe that's what I was trying to say. :)
Well, next up is a node adapter of some type.
73--John
At 06:40 AM 3/18/2010, you wrote:
The one thing I hate is using memories to do everything. Go to a new
area and you've got to program new memories. Ever see one of Mark's ,
KJ4VO, files? He has everything in there. I get confused just looking
at one.
I think the way memories currently work
At 10:11 AM 3/18/2010, you wrote:
It is a question of the G2 network at this point, there is a lot
of politics going on about who and what can connect, but the technology
exists.
Maybe that's what I was trying to say. :)
Politics is definitely a bigger barrier than technology at this point
Let's get some details correct. Icom is NOT the only manufacturer of D-STAR
radios. Before the JARL would ratify the protocol, there had to be two
manufacturers. Kenwood is the other manufacturer (okay, in reality they resale
the Icom radio, but legally there are two manufacturers)
Kenwood's
It’s easier3 to program a radio for D-STAR than it is a standard FM repeater
with tone.
D-STAR – Set frequency, set mode, set offset, kerchunk and hit one-touch1
FM – Set frequency, set mode, set offset, set tone2, turn tone on
Ed WA4YIH
1 In the interest of full disclosure. If you kerchunk
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