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[aprssig] APRS high speed

Jason Rausch jason at ke4nyv.com
Thu Mar 23 21:54:31 UTC 2006


In Virginia, a few of us played with 9600 with 900MHz
as well as linking two VHF 1200 digis with a UHF 440
9600 link.  Our network wasn't busy enough to really
get an idea of if it was beneficial or not.

Jason KE4NYV
www.ke4nyv.com
RPC Electronics
www.rpc-electronics.com

--- scott at opentrac.org wrote:

> Main problems here are that a higher data rate means
> less energy per bit,
> and GPS receivers don't usually output more than one
> position per second
> anyway.  A 1200 baud channel (assuming a continuous
> transmission) can handle
> a 5-hz update rate just fine, if you use a
> reasonably efficient format.
>  
> So the question is, what are you trying to
> accomplish?
>  
> Scott
> N1VG
> 
> 
>   _____  
> 
> From: aprssig-bounces at lists.tapr.org
> [mailto:aprssig-bounces at lists.tapr.org]
> On Behalf Of Andrew Rich
> Sent: Thursday, March 23, 2006 1:38 PM
> To: TAPR List
> Subject: [aprssig] APRS high speed
> 
> 
> Gudday
>  
> Been looking at radar technology the last few days
> and it begged me to ask
> the question.
>  
> Has anyone thought / played with APRS mobile at high
> data rates ?
>  
> The planes uses pulsed transmissions and very fast.
>  
> On a much smaller scale i would like to play with
> hooking the GPS straight
> into a LIPD module and use that - range 100 m 
> 
> -----------------------------------------
> Andrew Rich
> Amateur radio callsign VK4TEC
> email:  <mailto:vk4tec at tech-software.net>
> vk4tec at tech-software.net
> web: http://www.tech-software.net
> Brisbane AUSTRALIA 
> 
>  
> 
> > _______________________________________________
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> aprssig at lists.tapr.org
>
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> 





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