[aprssig] more kayak and aprs

[Jon K Hellan]

jimlux wrote:

> I've just started looking into this, but it looks like the VHF/DSC is 
> "on button push", not automatic, as in APRS.  There appears to be some 
> sort of "pull" or query mechanism where one VHF/DSC station can ask for 
> the position of another, so in my scenario, the station in the car would 
> be doing this.  However, there's probably some legal prohibition against 
> automated actions like this.

Sounds like you're looking for AIS class B. (AIS class A is for commercial 
shipping). Could be a bit bulky for a kayak, though, and APRS would be much 
cheaper.