[Laser] Re: ATV laser DX record.

Chuck Hast wchast at gmail.com
Fri Mar 23 11:48:20 EST 2007


On 3/23/07, Des <d29602960 at yahoo.co.uk> wrote:
> Hello Yves and everyone on the list,
>
> Yves wrote:
> The laser TV record was broken by a German team.
> With 10  mW they succeed a 70 Km QSO with B5 TV
> pictures.....
> *************
>
> This is quite an achievment though I regret my German
> is not very good and I have not been able to figure
> out how they modulated the Laser.
>
> Does anyone know if they used some form of subcarrier
> or was this some form of direct modulation of the
> Laser current?
>
> Regards to all on the list.
>

I thought I saw something about AM somewhere, I am looking to build some
FSO data links for some of our packet switches and am looking for any info,
this just continues to confirm what I have been thinking, we have a lot of
bandwidth up there that we are not using... Need to put it to use...


-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."


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