Have a read of Andy, G4SZM's work here:
http://www.gb3we.com/gb3we/pages/
The pictures page shows you the modifications to make an analogue repeater work
on D-Star.
http://www.gb3we.com/gb3we/pages/
There are a couple over in Ireland using this info to good effect. :)
Neil.
G7EBY.
--- In
At 03:17 PM 7/3/2009, you wrote:
Ok with all the talk of interfacing DV and FM, here is another question
if there is an FM repeater, that has no tone whatsoever, what is it about
Dstar that it wont pass through?
Fm repeaters normally use deemphasis and preemphasis, and the audio
path may not
At 04:04 PM 7/3/2009, you wrote:
Have a read of Andy, G4SZM's work here:
http://www.gb3we.com/gb3we/pages/
The pictures page shows you the modifications to make an analogue
repeater work on D-Star.
http://www.gb3we.com/gb3we/pages/
There are a couple over in Ireland using this info to good
The best place to start is with your repeater owner/gateway
administrator. The gateway may not be configured for general Internet
access.
We didn't have to do anything specific to allow general internet browsing via
DD when we set up the gateway. If named is broken on the gateway you
Looks like the thread is migrating from connecting a DSTAR radio to an
FM radio or repeater, into building a non-Icom DSTAR repeater.
It doesn't take much 'magic' to run dstar through a PMR or LMR here in
the Colonies, radio. BUT,
You loose the DSTAR ID packets and such generated by the
Hi Tony,
I spoke to Andy SZM earlier, he was quite pleased that others were interested
in modifying PMR gear, and that the fact that an Icom D-Star box is just two FM
trancievers in a shiny case, obviously with no analogue whatsoever available on
them to the end user is just that.
GMSK can be
Some administrators may block Internet access. Talking to the
administrator of the local system will provide the local system knowledge.
As an admin, I'm just curious how that could be done, block general internet
browsing via DD but not block DD QSO gateway routing?
73 -- John
Hi Steve,
Trust you are well.
I think the threads where people were connecting a D-Star radio to an analogue
radio or repeater (or visa versa) have been discussed before and been met with
quite a wall of opposition when they tried.
Its a shame someone wouldn't come up with a 'caller ID' type
As far as I can see or know, Andy's repeater doesn't buffer or 'hold' any
data, it is purely passed directly and almost instantaneously into the TX
from the RX, after the comparator circuit that helps smooth off the 0's and
1's.
Andy then is almost certainly transmitting plain FM, not
Hi John,
Well, D-Star IS plain FM, you buy an FM transceiver and the add on board just
utilises that for the GMSK data, like packet or any other data mode for that
matter. Yes, I agree that the bandwidth is full scale all the time, but
measure it on a scope and see that the GMSK data is the
Before we have the Icom D-Star repeater, we used to talk DV on our UHF
repeater. Works just like FM, we can't see any difference in performance. If
the audio from repeater receiver is from discriminator (no de-emphasis) and
is feed to the transmitter modulator (no pre-emphasis), everything pass
At 12:58 AM 7/4/2009, you wrote:
Its a shame your TX is what it is, maybe a redundant FM TX rig would
suffice instead? (And be a quick fix.)
True, but the Tx I have is an old repeater workhorse, with a proven
track record, and it came at a good price! :) If I put up something
on D-STAR, I
Strange, we are almost out of 2M allocations here. (FM or DV.)
--- In dstar_digital@yahoogroups.com, Tony Langdon vk3...@... wrote:
At 12:58 AM 7/4/2009, you wrote:
Its a shame your TX is what it is, maybe a redundant FM TX rig would
suffice instead? (And be a quick fix.)
True, but the
John D. Hays wrote:
Some administrators may block Internet access. Talking to the
administrator of the local system will provide the local system knowledge.
I have not seen anyone mention the tcp/ip properties in the lan (network
connections)
see;
As an admin, I'm just curious how that could be done, block general
internet browsing via DD but not block DD QSO gateway routing?
73 -- John
Easy, just shut down the router port used for DD. There is no gateway DD
QSO routing.
Apart from internet connectivity DD connections to the
At 08:23 AM 7/4/2009, you wrote:
Strange, we are almost out of 2M allocations here. (FM or DV.)
We're out on FM here, DV works, because it can be squeezed in between
FM channels (we use 25 kHz spacing on FM here), provided you keep the
adjacent FM/DV channels geographically spaced apart.
73 de
- Original Message -
From: Neil barrym...@ntlworld.com
To: dstar digital dstar_digital@yahoogroups.com
Sent: Friday, July 3, 2009 3:23:31 PM GMT -08:00 US/Canada Pacific
Subject: [DSTAR_DIGITAL] Re: more DV / FM questions
Strange, we are almost out of 2M allocations here. (FM
Saying D-STAR IS plain FM is even worse than calling PM, FM. There's a
difference, a very big difference. FM=Frequency Modulation. D-STAR Frequency
Modulated, no way, no how.
Can a FM transmitter send a GMSK signal? Well, a FM transmitter can be modified
to do so, but then it really isn't an
Woodrick, Ed wrote:
Saying D-STAR IS plain FM is even worse than calling PM, FM. There's a
difference, a very big difference. FM=Frequency Modulation. D-STAR
Frequency Modulated, no way, no how.
Can a FM transmitter send a GMSK signal? Well, a FM transmitter can be
modified to do so, but
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