[OZAPRS] TT3 and a fm900 radio

[David McAulay]

Hi All
Wonder if someone maybe able to help please.
A couple  of us here in VK3 have ordered the tt3 from the usa, and in prepartion are trying to make up a cable to suit a fm900 radio using the 8 pin din on the back of the radio. We propose to use the middle pin which  is not connected at present to supply 12v to the tt3. The gps we propose to use is a 12v unit
Looking at the tt3 web pages and cicuits between us we are still confused on what pins of the tt3 db9 we use

and to what pins of the fm900
Im sure someone has done it
 
Could I ask you share this please with me
 
Thank you
 
All replies appreciated
 
73 David VK3EW


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