Order Tray | Contact Us | Home | SIG Lists

[aprssig] PPM APRS

Andrew Rich vk4tec at tech-software.net
Wed Jul 1 21:12:17 UTC 2009


There are heaps of cheap video tx modules around.

Is there any reason why they can't be PulsePositionModulated ? 

Should be enough bandwidth 

I have been looking closely at MODE S aircraft signals - 1 MB at 8MHz bandwidth

Sounds like a click. Sends position

Also been looking at AIS - 9600 self organising GMSK. 

Maybe good ole 1200 baud will be a round for a while.

I have been using radio modules - 19k2 on air - 100 mW beef up to 30 watts.

Andrew

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tapr.org/pipermail/aprssig/attachments/20090702/bf693af2/attachment.htm>


More information about the aprssig mailing list