I don't have one but if you watch Andrew at around 4:30 he discusses how the power switch works and it's definitely on without any signal cables.

https://m.youtube.com/watch?feature=youtu.be&v=c6fVNedgny4


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2