From reading the book "Panzer The Iron Fist" one of the advantages was that the Germans had radio sets in all of their tanks. This being a huge advantage to a commander having to issue orders and the orientation of the on field and immediate rsponse to battle field conditions. What I don't have is the numbers on the size, and range of the radios. Any info on these questions? If anyone sees fit to post other radio info regarding tanks please be kind and post the dates of the installments as well, so we can get a glimpse at the tech-trees. Cheers!