PilotAware Radar Display on Garmin 695?

[Comfortably Numb]

My apologies if this subject has been discussed before, I’ve had a good look but couldn’t find an answer.

I have a Garmin GPSMAP 695 fitted in the aircraft, I use that as backup as I'm using SkyDemon on a tablet.  The 695 has a radar look 'traffic' screen (TIS system) which I’d like to use to display the PilotAware Radar.
Leap of faith time, the traffic display on the 695 is driven by just one wire? (normally from the transponder) I'm wondering if the PilotAware traffic signal can be broken out to a USB socket and could then be connected to the 695 to give me 'Radar'?

I know I've papered over some reasonably complex areas but just wondered if it's in any way possible?  I’m happy to handle the Garmin end protocols and baud rates (i.e. I’ll have a go!) and probably ok with configuring the PilotAware USB socket to talk to the Garmin 695 (assuming it’s even possible), my bottom line is which wire (pin number) from the USB cable, will be the ‘TX’ for me to connect to the Garmin, it will have to be a ‘bare wires’ connection to the Garmin 4 wire plug (RX and Ground).
Any thoughts gratefully appreciated!

[Admin]

not a simple task I'm afraid.

Firstly the Garmin 695 uses a proprietary format for the Traffic information.
I have tried on a number of occasions to get Garmin to provide details of this format - they will not disclose.
I guess this is because they want you to purchase their proprietary trafffic system.

The data link layer is simple, it is RS232, which can be used to interface between Garmin 695 and PilotAware.
But this is only the data link, the format of the data itself is the crucial missing link.

when you say

I’m happy to handle the Garmin end protocols and baud rates (i.e. I’ll have a go!)

I presume you mean the 'configuration' of the 695, or are you saying to write code to perform the interface ?

I was in contact with przemek on this forum who has spent some time reverse engineering the TIS-B format forthe 496, but I have been too busy to fully investigate his findings.

his posts are here
http://forum.pilotaware.com/index.php/topic,98.msg10080.html#msg10080

Thx
Lee

[Comfortably Numb]

Thanks for your reply Lee

I only wish I could write the code!  Yes I was meaning configuration, I'll keep and eye on the subject and see if anybody manages to move forwards, I'll also look to contact the other people who are exploring this issue (the link you pasted), fingers crossed.

Thanks again

Les