I never understood the idea of turning on a radio every three hours for just three minutes. If we lose our time standards (internet not available, WWV off the air or conditions are bad), how do people expect to keep their clocks that accurate?
I posted this link about watch stability somewhere, not sure if it was here. There was a discussion about watches but cannot find it. A smart phone without a connection to the tower/internet is a HORRIBLE clock. You will likely lose 4 minutes in a week due to the temperature changes in the phone. A typical quartz crystal wrist watch loses track of 6 to 8 seconds a day. Anyhow, I think recommending that we only listen for 3 minutes when SHTF is foolish, these people didn't think that through.
I posted this link about watch stability somewhere, not sure if it was here. There was a discussion about watches but cannot find it. A smart phone without a connection to the tower/internet is a HORRIBLE clock. You will likely lose 4 minutes in a week due to the temperature changes in the phone. A typical quartz crystal wrist watch loses track of 6 to 8 seconds a day. Anyhow, I think recommending that we only listen for 3 minutes when SHTF is foolish, these people didn't think that through.