[amsat-bb] Re: D STAR

Stefan Wagener wageners at gmail.com
Mon Nov 11 08:25:37 PST 2013


Yes,

It could work as long as software for doppler control (eg SatPc32) can
invoke the smaller frequency changes which it actually can (see my other
note on the IC-9100). So you would use the built-in DSTAR module for uplink
or downlink and the 9600 packet mode with a GMSK node adapter for the other
in a full duple radio like the IC-9100. Or you use two radios in 9600
packet mode with 2 node adapters for uplink and downlink as long as they
are supported via doppler software and small frequency steps.

Stefan


On Mon, Nov 11, 2013 at 10:05 AM, K2AK - Jeff <k2ak at k2ak.net> wrote:

> Great point!
>
> Hi Angelo,
>
> Jeff - K2AK
> (X-K7WIN)
>
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
> Behalf Of Angelo Glorioso
> Sent: Monday, November 11, 2013 8:57 AM
> To: amsat-bb at amsat.org
> Subject: [amsat-bb] Re: D STAR
>
> When GO32 was running, we were able to send and receive  data at 9600 bps.
> DSTAR voice. on 444 is 2400bps and data is 4800bps  gsm if I am correct.
>
>  So, why would it not work via satellite other than having to get 5 kc
> steps
> reduced to 1k or less.
>
> 73 de Angelo
>
>
>
>
> ----- Original Message -----
> From: "Gordon JC Pearce" <gordonjcp at gjcp.net>
> To: <amsat-bb at amsat.org>
> Sent: Monday, November 11, 2013 9:22 AM
> Subject: [amsat-bb] Re: D STAR
>
>
> > On Mon, Nov 11, 2013 at 08:46:24AM -0600, damon runion wrote:
> >> Well back in the days of AM and when SSB came out it was the same
> >> thinking then BUT what has happened to AM . Same thing with DSTAR it
> >> is growing and will grow . Thats what makes ham radio so much fun,
> >> there is something for everyone
> >> 73,s Damon
> >
> > But the difference there is that *anyone* can make an SSB rig.  Only one
> > manufacturer is allowed to make AMBE codecs, and they will only sell to a
> > handful of approved radio manufacturers.
> >
> > It is illegal to make your own DStar radio, without buying the AMBE codec
> > from DVSI.  That sort of thing has no place in amateur radio.
> >
> > --
> > Gordonjcp MM0YEQ
> >
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