[aprssig] APRN (Automatic Picture Relay Network) revival?
Stephen H. Smith
wa8lmf2 at aol.com
Sat Aug 8 21:41:53 CDT 2015
On 8/8/2015 3:06 PM, Robert Bruninga via aprssig wrote:
> Thanks. I think you answered most of what I was after. That is, there are
> presently no tiny cameras with direct to digital transmission over RF, but you
> did remind me that the existing APRN concepts are probably still valid.
> That is, the transmission from the mobile robot camera may be SSTV (Greatest
> availabililty of cameras) , but as soon as it is received, then it is converted
> to a file and networked onward as needed in digital form.
I think Scott's analog SSTV cam board would be the perfect fit for this. Wire
it's FM-audio out to an FM transmitter and you are good to go. It's been flown
on numerous balloons already. The thing is about the size of a naked-board
The real issue would be what band and frequency to listen on. I have had my
APRN SSTV + APRS auto-receive operating on 446.0 in central Michigan
(Lansing-East Lansing area) for the last three years, since I moved from SoCal.
[The so-called national calling freq is so dead in central MI (or anywhere
outside the south-eastern Detroit/Ann Arbor area) that I hear an average of one
call every three or four weeks here. I intentionally placed my Echolink node
and the APRN gateway on 446.0 to try to scare up a little activity]
Stephen H. Smith wa8lmf (at) aol.com
EchoLink: Node # 14400 [Think bottom of the 2-meter band]
Home Page: http://wa8lmf.net
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