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Originally posted by kroms33
reply to post by squizzy
I googled CB radios and water and didn't come up with a thing.... do you have any links to verify this works?
Originally posted by AQuestion
reply to post by CASH69
Shortwave radio for sure. While ham radio is not as big as it once was, it is still a great system and the units can be shielded from EMPs because many were designed in case of a nuclear attack.
If you have a CB with a metal case. A high speed surge arrestor on the antenna. And one on the power cable, then it should be able to handle any EMP just as easily as any ham radio. If you have the mike and antenna disconnected, then it will definitely be fine.
Originally posted by Mr Tranny
And in reply to another poster, NO a CB radio will not be fried by a solar flare.
Originally posted by OatDelphi
I am not trying to argue this at all, as I stated this stuff is not my forte, but I am always interested in learning. Could you please explain why CB's are not going to be affected? Is it because they operate on early form transistors or vacuum tubes?
Originally posted by dainoyfb
I just want to reiterate what someone mentioned earlier. In most SHTF situations it will be much more important to know what is going on than to actually be able to transmit. In fact you may not want to risk transmitting at all in many situations. If budget is a concern then my advice is to concentrate on receiving first. Start with a good short wave receiver, a multi-band receiver, good antennas, and a reliable power supply such as a car battery charged by a solar panel. Look for a multi-band receiver or scanner that can receive as much as possible such as:
Local law enforcement and EMS
CB, including LSB, USB
All of the Ham bands
I own a couple of radios that cover all of these bands and more. Cost is just a few hundred dollars. Like others have said keep everything unplugged from everything else and it should be ok. For added protection wrap it in a few layers of cooking foil and keep it close to or in the ground.
If you are wondering about my information, for what its worth I design electronics, some for industrial and military applications.
Also, stars for Mr Tranny's posts for his accurate and practical information.
Originally posted by brokedown
With a EMP either Solar or man made the CB radio will not work.
A CB radio you buy over the counter has a 4 watt signal output. Which means with a "matched" antena you possible will be able to send/receive about 3 miles normally, ( on a clear channel). On the "Truckers" channel 19 expect half that.
First thing to know about CB radio is that you MUST "match" the antena. This means you "set the SWR's" of the antena. This is done by placing an external meter between the CB and antena, then with the reading you would raise of lower the antena's whip lenght. BEST to have this done by a professional CB tech.
You can add "Power" to the CB by adding an external "Liner" this can be as many watts as you care to push, most range from 250 watts to 1200 watts.