[AlexW]

"This means that RF engineers, (can you hear me now?) must design systems to deal with extreme interference issues. Even using digital "

What good is any of this if a disaster knocks out cell towers? How good was cell service in the path of Katrina? huh? I would say it was ZERO!

[Nowhere Man]

What good is any of this if a disaster knocks out cell towers? How good was cell service in the path of Katrina? huh? I would say it was ZERO!

Or what if some terrorists hack into the super-duper computer controleld networks and satellites, amateur radio will be the only way to go. What if we get into an atomic war or if someone lights a nuke up somehwre in the U.S., all that high-tech stuff will be useless as a screen door on a submarine.