WHY DO YOU WEAR THE MASK?
Blackout is a military term for "no communications"
quick web search:
Blackouts occur for many reasons, usually due to a death or in case of impending attack.
it is common for ships and submarines to go weeks and longer with no outside access such as email.
I personally have gone 6 weeks without any communication with my spouse while he was underway.
he will contact you.. when he can.