One more tid-bit, If you're using a Cambridge NMEA
cable, the white lead at the GPS box is on the RIGHT,
but when this same cable goes into the computer, the
white lead is on the LEFT. In other words, you must
use the correct end of the cable on the Model 20 end.
A standard phone cable may not work.
:) JJ

At 23:00 10 October 2004, John Sinclair wrote:
Chuck,
Just a shot in the dark, but when the Cambridge model
20 is used to drive the Borgelt B-100, the red and
yellow leads in the NMEA cable (phone cable) must be
reversed. You might want to give it a try.
JJ