Gingerbread cookies and GPS

I've been experimenting with a Crescent Vector GPS from Hemisphere GPS. It uses two antennas 1/2 meter apart to gove heading as well as GPS position at 10Hz. The only problem is that the helicopter test bed (and the rocket) is an electrically noisy place. So I built an adapter module that has an isolated DC-DC converter, a logic isolator and RS-232 level converters on a small PCB. I then needed to mount the whole thing in some kind of shielded enclosure. I've been reading the "Jack Crossfire blog" about the trials and tribulations of making a autonomous UAV helicopter. He used an altoids tin to shield his GPS, I'm using a gingerbread cookie tin. (Altoids was too small for the vector).

The back side....
With the top on....


And finally a picture of the carbon fiber frame that mounts to the helicopter and holds the two GPS antennas.

I should be ready to fly this contraption tonight, but Southern California are in the midst of a big rain storm and thats not conducive to flying the helicopter.