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[aprssig] APRS and RF data modules

J. Lance Cotton joe at lightningflash.net
Thu Apr 28 13:12:50 UTC 2005


Andy VK4TEC wrote:
> Has anyone dabbled with APRS and these little data modules ?
> 
> http://www.tech-software.net/434.htm

I used something nearly identical fro a school project, just to get a 
"wireless serial cable". It worked okay, but the power output was so 
low, the range was only good for the demo (wouldn't have worked for a 
usable version of the particular project). We got quite a few serial 
errors -- and these had the built-in clock recovery, encoding, etc.

Jason Winningham wrote:
> I have thought about building a circuit similar to the Ramsey. but add 
> support for a PIC so it would be a useful 2m tracking beacon.  Maybe a 
> DC-DC converter, so the thing would run off a single 1.5V AA lithium?  
> It would need 3 or 5 volts for the PIC and 9 or 12 for the transmitter. 
>  I think maxim has a beastie that does both.  Yet another project for my 
> copious spare time...

Why not just get a PocketTracker?
http://byonics.com/pockettracker/

-- 
J. Lance Cotton, KJ5O
joe at lightningflash.net
http://kj5o.lightningflash.net
Three Step Plan: 1. Take over the world. 2. Get a lot of cookies. 3. Eat 
the cookies.




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