shouldn't work.
George, KA3HSW / WQGJ413
- Original Message -
From: hwingate [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Thursday, April 26, 2007 7:47 AM
Subject: [Repeater-Builder] Re: Repeating D-Star
I have often wondered just how diffucult it would to be to build
a D
You'd absolutely, ABSOLUTELY limit the energy you emit (the frequency converted
input signal) to fit within the allowable channel you're repeater/transponder
is coordinated. That's no different with the FM brand of repeater. You're
responsible for your output. The IF is where you'd probably
There's one reason- they would have to purchase rights to the voice decoder
designs from DVSI. D-Star is still young so other manufacturers may eventually
jump on board once they convince themselves that the upfront engineering and
intellectual costs will be worthwhile.
By the way, as if there
/ WQGJ413
-Original Message-
From: [EMAIL PROTECTED]
Sent: Apr 27, 2007 10:35 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Repeating D-Star
There's one reason- they would have to purchase rights to the voice decoder
designs from DVSI. D-Star is still young so
You'll have to check with AOR on that one. For all we know whatever contract
they may have with DVSI may be specific to the modem. I figured two years ago
when they introduced the AR-ONE that they would include some decoders, or an
expansion port for an option card, or maybe even trunking but
I don't think you will be able to just plug binary data into a radio
transmitter unless there is a made for the purpose FSK input for binary data
that would support the DSTAR data rate. Steve
On 4/27/07, Gary [EMAIL PROTECTED] wrote:
You'll have to check with AOR on that one. For all we know
What do you guys know about the AOR digital modems? I understand that
is an open protocol. Seems a little expensive, but if it sounds good
maybe we can build some kind of cheap encoder/decoder?
On 4/25/07, Bob Witte K0NR [EMAIL PROTECTED] wrote:
--- In Repeater-Builder@yahoogroups.com, Bob
I have often wondered just how diffucult it would to be to build
a D-Star system around a Micor or M2. D-Star is mostly open
protocol (except for the software which is propriatry to Icom),
the AMBE vocoder chips are available from the manufacturer, and
GMSK modem chips are also available.
Seems
I have often wondered just how diffucult it would to be to build
a D-Star system around a Micor or M2. D-Star is mostly open
I have given thought to buying the controller or at least getting a manual
to see if I could use Icom logic with brand X radio. There does not seem to
be much info that I
I would hate to see your insightful comment missed. I haven't seen
anyone else pick up on the part of your message about the linear
transponder. If someone wants to pass many different modes through a
repeater, you can't do better than a transponder. I've been on the
transmitting and receiving
There used to be Linear Translators that were land based. There was one
around the Pittsburgh area. I'm sure somewhere there are a few left, but
they are few and far between.
Joe M.
Rod Lane wrote:
I would hate to see your insightful comment missed. I haven't seen
anyone else pick up on the
...
--- Jeff
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Rod Lane
Sent: Thursday, April 26, 2007 11:02 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Repeating D-Star
I would
Do you know what gear they were using?
I think I do remember using one near Indio, CA years ago, and it
sounded great. Just like simplex (which it should.)
73 de N1FNE
--- In Repeater-Builder@yahoogroups.com, mch [EMAIL PROTECTED] wrote:
There used to be Linear Translators that were land
On 4/26/07, Rod Lane [EMAIL PROTECTED] wrote:
go through unimpeded ( and undistorted.) One possible minor down side
is that the user's radio needs to be somewhat on-frequency. If they
come in 1 KHz low, they go out 1 KHz low. In theory, it's not the
repeater owner's problem, but can be
mch wrote:
There used to be Linear Translators that were land based. There was one
around the Pittsburgh area. I'm sure somewhere there are a few left, but
they are few and far between.
Yup, K3PGP had it in his house. I seen it several times, in person.
Kevin
--- In Repeater-Builder@yahoogroups.com, Bob Dengler [EMAIL PROTECTED]
wrote:
What would be far more interesting to me would be for one of the
ham
manufacturers to offer a P25 user radio. How much would adding
the vocoder
add to the cost of a current analog FM model? If it's comparable
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