One slightly modified PicoPacket
GPS Receiver. It has it's second serial port actually connected to a
GPS receiver
This box contains an Motorola Oncore
GPS Receiver. The outputs are connected
to a mini-XLR connector - 4 pin version.
The levels are TTL level.
This is my portable setup. Top right is the GPS antenna, or
more correctly one of my homebrew units I had lying round
for the photo. Next right is the PicoPacket, connected to the
GPS receiver in the silver box. On the right side is my
a Standard handheld. The only thing missing from this photo
is the battery pack for the PicoPacket and GPS.