That was unencrypted downlink, so troops on the ground could receive the signals without expensive equipment. The control frequencies are encrypted.
Myth Eight: An integrated battery is a significant problem for users
Having an extra battery to swap in makes sense on a laptop, but does not make sense for a phone, particularly one that has standard external battery packs that can be used via its dock connector.
"The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment." -- Richard P. Feynman