PPRuNe Forums - View Single Post - Mode S: do we need it in GA?
View Single Post
Old 11th May 2015, 13:04
  #24 (permalink)  
lasseb
 
Join Date: Aug 2009
Location: Copenhagen
Posts: 150
Likes: 0
Received 0 Likes on 0 Posts
I found that the cost of a new Mode-S transponder depended heavily on what model A/C you are trying to replace. I had to replace an old A/C transponder some years ago.
It turned out that a company made a mode S transponder that was pin compatible with our old A/C. That was a huge time and cost saver, as the installation took approx 5 minutes, and consisted only of swapping the units.. Of course we had to pay for some testing and paperwork but not having to rewire the cockpit was a big save..

So just a hint to others when you go hunting for a new mode-S. Maybe there exists a pin compatible one, which will save you time and money in the end.

unfortunately i cannot remember the model no of the old A/C.
lasseb is offline