[aprssig] GPS to D700 Connection

Noel Shrum ar798 at tcnet.org
Fri Sep 9 18:52:17 CDT 2005

Vic Fraenckel wrote:
> *The diagram in the D700A Specialized Communications Instruction Manual
> has a diagram on page 10 which shows the 3 conductor plug with
> pigtail to GPS wiring. I want to make up a DB9 connector on the end of
> the plug's pigtail. The diagram says the white lead goes to the GPS DATA
> IN, the red lead goes to the GPS DATA OUT  and the shield goes to GPS
> GND. I understand that the three pins on the DB9 I need to  connect
> to are 2, 3 and 5. Shield goes to 5. Which pigtail lead goes to 2 and
> which goes to 3. Pin 2 is normally called RXD and pin 3 is normally
> called TXD. I am always confused by this. Just tell me red => 2, white
> => 3 or whatever. I am not smart enough to go beyond that.*

Just remember that tx goes to rx

GPS data out is the TX line on the D700A and the GPS data in would be
the RX line.


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