*The GPS antenna
*The GPS unit
*Serial Cable connects GPS to PDA
The GPS Unit and Antenna
The GPS unit is in Maurice’s pocket.  (point) But, this is what it looks like.
It uses a small cell phone battery. The GPS circuit board is very small.
The antenna plugs into a pocket in his cap. (point to both).
A serial cable connects the GPS unit to the handheld pc (point).