In a previous article, "Max T, CFI" said:
Paul Tomblin wrote in message
http://xcski.com/gallery/wxworks

Thanks for posting. Still looks like a lot of wires!

There's only one "wire" coming out of the box, which branches off to the
USB port on the laptop, to the ships power (cigar lighter) and the single
antenna mount.


I'm curious, what runs off the inverter and needs AC? I would have
thought that everything in the box would run off of 12 volts (though
probably not off of 24 volts depending upon what plane they're in).

If I'm reading the pictures correctly, I think that rather than attempting
to engineer a DC supply for the WX Works reciever that works directly off
the ships power, he's run the ships power into the inverter and plugged
the WXWorx "wall wart" power supply into that.

Somebody willing to cut wires and make their own power supplies could
probably make it much smaller, but I think one of Dave's goals was that he
could take the expensive stuff like the WxWorx receiver out of the box and
have it be as good as new.

--
Paul Tomblin http://xcski.com/blogs/pt/
Never underestimate the bandwidth of a station wagon full of
tapes hurtling down the highway.
-- Andrew Tannenbaum possibly quoting Warren Jackson