Greetings Dietrich
Those links sure provide a lot of information...and it does seem like there is a lot of interest in doing the hidden antenna mod...the one thing that is evident... it's a 50/50 gambit.... sometimes it works and sometimes it doesn't....with one interesting conversation going to the point.. where the guy had made several of them for his tanks... then went back to the external aerial ...and was giving the units he made away
As I was sipping on some coffee... I thought of something...RC helicopters have pretty good range.... and have flexible external aerials that wind around the skids....a lot of tanks carry coils of rope... or tow cables....I don't know if this has been attempted.... but what if you just camouflage the external cable ?...It's kind of a stretch on what I was planning to do on the PANZER III anyway...as I was thinking of fabricating an exhaust system and hiding the coil inside of it..it would still be external... and if I made the exhaust out of copper .... the shell of the exhaust would also become a part of the aerial ....not to mention look cool as it could be hooked up to the smoker
but that was the initial plan...the coffee might have helped clear my thinking on this.... but just a coil of flexible aerial wire from a helicopter...might be enough... it's thin enough to simulate a thin cable ...or with a stretch of the imagination... made to look like rope...it could be placed anywhere on the outer hull of any tank
and wouldn't get interference from any internal motors and electricals
I think I'm going to try this ... maybe apply for a patent if it works ... and sell them to you all
Just kidding... but I will let you all know if it works or not
ALPHA
....and aside from burning myself cooking... yeah.. everything is good in paradise...but it's soooo freaking HOT!!! 
