[aprssig] Inexpensive APRS transmitter kit

Scott Miller scott at opentrac.org
Sun Apr 18 19:35:39 EDT 2010

I've got a few examples of a tracker board I build specifically for 
balloon use, but I'm out of MX146LV transmitters now.  Here's a little 
bit on the unit:


I've got another board revision on the way that's smaller, runs on a 9V 
battery, and will have support for a small camera for SSTV.

Right now the only problem is the availability of the MX146LV.  SRB was 
having some production problems last time I checked.


Joshua Shriver wrote:
> Sometime hopefully this year I'm hoping to release a weather balloon
> with a small payload for taking pictures, maybe other things via
> sensors.
> Wondering if there are any inexpensive, light-weight and low power
> aprs transmitters that can be used for such a thing.
> Best I've found so far is the Byonic TinyTrak setup. Though it seems a
> bit pricey, though it's the best bet so far.  I've even looked into
> introduction DIY fm transmitter kits and can buy a APRS encoder for
> around $24 from another ham I know.
> Any advice or recommendations would be appreciated.
> -Josh
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