Shortening the 1090Mz antenna

[CliveJ]

I'd like to shorten the antenna as described in your Antenna PDF, 68mm but where is that measured from?
It will fit a lot nicer on my coaming if it's half the size.
I have had a surf/search to try and find this info.
Thanks, Regards, Clive

[Vic]

Hi Clive

Try here

http://forum.pilotaware.com/index.php/topic,438.0.html

[CliveJ]

Thanks Vic, you're a star, I'm on it. Also like the neat solution with the chopped down cable.

I would like to find a supplier of the stubby antenna so I can mount the aerials under the plane and get the coaming clear one day. The kind in the kit that PA sell, problem is I don't know what to surf for, any ideas?
I've tried to search the forum but haven't found the info.

Regards, Clive

[russp]

You can see where I got mine from in my write up here https://spark.adobe.com/page/uOYLxiidmmgUz/

[Paul_Sengupta]

Have a look at this thread for some external 868MHz (PAW compatible) external antennas.

http://forum.pilotaware.com/index.php/topic,1478.0.html

For 1090MHz, any transponder antenna will do.

Maybe something like this:

http://forum.pilotaware.com/index.php/topic,1478.0.html

[CliveJ]

Thanks for all the replies, Regards, Clive