score:6
Local here.
I have mailed to the airport support and they replied as;
We would like to inform you that the information we have received does not constitute any problem in terms of security, in particular, in the interest of the request, we ask you to contact Atatürk Airport Customs Directorate with the reason of customs procedures
I have also mailed to customs directorate but they didn't give any response to my mail.
I strongly suspect you don't run into any trobule for that device.
Upvote:4
Just like Soner predicted I made it through both security checkpoints at IST, at the last of which I had the radio "inspected" (looked at skeptically, for the reason of not being either a laptop or a tablet I guess) and after some laughs all seemed OK with everyone. :)
For some reason, shortly after Soner Gönül's response, the IST airport site went first down and then into different phases of a degraded mode, so his link is sadly no longer available.
Here, just like in basically every country on Earth, showing an effort to learn the local language can lubricate any bureaucracy quite a bit.