Anonymous said...After a real SHTF event Cell phone and even landlines may well be useless. I am a Ham and belong to the Navy/Marine Corps MARS radio system. In the hours immedialetly after the 9/11 event. Many cell phones, landlines and internet were giving busy signals. All lines were overloaded from everyone calling. A lot of internet did not work because much of it is still dial-up and there were no lines available. Phones, both Cell and landlines, are designed to be used with a capacity of no more than 25% of the subscribers using the system at the same time. More than that and the system has no capacity and is "Busy". You even see this on holidays when you get a recording that says to "please call later, all circuits are busy"
During 9/11, many emergency workers could not use their cells because everone was calling home or whatever. The Government found contrary to prior thinking, that cells were a poor sustitute for dedicated radios. That is why some systems are aranging dedicated emergency worker phones so that during a disaster they can lockout John-Q-Public and not overload the system. In addition, huge amounts of the landline trunking systems for New York were routed through the basements of the World trade Center. And as mentioned, the internet has the weakness of some in the system still use dial-up. You may have wi-fi or cable, but the recipient may not. If you're on dial up and can't make a phone call, you also can't use the internet. For several hours after 9/11 in Ohio, both my landline and cell were constant busy signals. The High speed Internet (Cable) was horribly slow to almost frozen.
With cells, it's not just about power backup, it's about line capacity.
Charles in Ohio
Hi Charles, I think the trick is never having your life depend on it, or better said, know that it may fail and have a backup plan for it.The CB radio is a good way to go.
Having said that, there's the Haiti survivors that used their phones, same thing in Chile, there even was a guy in Haiti that used his Iphone's first aid app to save someone's life!
Can fail indeed, but still worth having for sure. A must have if you ask me.