Re: [amsat-bb] Is anyone working on equipment for C-C Rider?

["John B. Stephensen" <kd6ozh@xxxxxxxxxxx>]

I don't know the details of the current C-C Rider communications protocol, but
terrestrial and space digital radio communication methods are generally are very
different as there are so many objects on earth to reflect, diffract and absorb
the signal. However, the proposed use of DSP on Eagle removes this conflict and
it could also revolutionize earth-based repeaters.

If the amateur community starts using high-speed DSP in home stations and
earth-based repeaters, the same hardware can be programmed with the optimal
modems and protocols for terrestrial and satellite links. DSP could also allow
mixing of analog and digital modes -- allowing everyone to use the mode they
want. With the right software, analog and digital modes could even interoperate.

73,

John
KD6OZH

----- Original Message -----
From: "Edward R. Cole" <al7eb@acsalaska.net>
To: <Dquagliana@aol.com>; <amsat-bb@AMSAT.Org>
Sent: Thursday, 04 November, 2004 06:40 UTC
Subject: Re: [amsat-bb] Is anyone working on equipment for C-C Rider?


> Douglas,
>
> Not to my knowledge but it has recently been discussed by a former Amsat
> Pres. on the Road Runners Microwave Group's listserv.  The appeal was for
> development of terrestrial repeaters following the C-C Rider concept.
> Development will likely come from either Amsat RF engineers or by one of
> the larger microwave societies like RMG, NTMS, SBMS, etc.  Perhaps the
> former Pres. will comment :-)
>
> This will not be a trivial project so it will not happen overnight.  I
> would guess it could take up to two years from onset to bring into reality.
>  Once a working model is produced, home stations could be made by
> essentially copying the repeater RF and SDR components.  The thought is if
> enough large mw clubs were to make copies that might establish a minimum
> demand to interest one of the mw kit mfrs to tool up.
>
> 73's Ed - AL7EB
> 50 MHz - 24 GHz
> Amsat member #3212
>
> At 09:47 PM 11/3/2004 -0500, Dquagliana@aol.com wrote:
> >Tom Clark W3IWI notes in his paper "C-C Rider: A new transponder
> >concept for amateur satellites" that "...none of us have
> >suitable C-band equipment in our shacks. Any program to
> >develop satellite hardware will need to be matched with a
> >parallel development of user hardware."
> >
> >Has anyone started working on the transmitters and receivers
> >for C-C Rider, or on their own C band equipment for C-C Rider?
> >
> >Is anyone building C-C Rider style transmitters, receivers, or
> >ground-based repeaters?
> >
> >Anyone? Anyone?
> >
> >Douglas KA2UPW
> >----
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