[aprssig] Pulse Position Modulation

Scott Miller scott at opentrac.org
Mon Jan 12 16:37:54 EST 2009


I was looking at that for sending positions from balloons with a xenon 
strobe.  It works well for pulsed modes with a high peak power to 
average power ratio.  It's not too complicated, and it's easy to 
implement on MCUs with hardware counter/timers.

I can't see it being too useful at VHF or UHF, though.

Scott
N1VG

Andrew Rich wrote:
> Has anyone played with Pulse Position Modulation for transmission of 
> position reporting technolgies ?
>  
> Andrew VK4TEC
> 
> 
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