[SixClub] 6 Meter FSK Receiver - Board $9.95

Roger (K8RI) on Six 50MHz at rogerhalstead.com
Tue May 23 21:30:25 EDT 2006




> Anyone checked this out?
>
> http://www.alltronics.com/cgi-bin/item/92A067/35/6%2DMeter%2DFSK%2DReceiver%2DBoard
>
> Sounds like a neat core for some fun experiments
> on 6M now that the band is seeing some openings!
>
> I forget, is SSTV active and is ATV permitted on
> 6M?
>
> I am thinking that ATV is only allowed on 450 and
> up due to available spectrum.

Basically the regs limit the bandwidth we can run.
Useing the Internet with streaming video as an example:  To reduce the 
required bandwidth you can reduce the size of the image (note the small 
streaming video window), you can reduce the resolution, you can reduce the 
number of discrete colors in digital, and you can reduce the number of 
discrete brightness levels.  However even a small grainy B & W real time 
image when compressed into an MPG4 format is *probably* going to be at least 
50KHz wide.

>
> Don't know if anyone does SSTV (or DSSTV) on 6.

I don't know of any in the central Michigan area.  We do have a few on 440 
ATV though.
At one time there were quite a few locals on HF SSTV.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com
>
> -- 
> Thanks! & 73, doc kd4e  http://bibleseven.com
> Ham Links: http://bibleseven.com/hl.html
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