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How to Modify an AM Radio to Receive Shortwave Broadcasts
Posted by Ed Corcoran Free Survival Ebooks, Survival Guides Add comments
radios
http://www.survivalandbeyond.net/modify-am-radio-to-receive-shortwave/
The larger radio is my Sangean ATS-803A shortwave receiver. The smaller radio in the
foreground is a travel alarm/AM-FM radio from the late 1980s. I converted it to
receive shortwave frequencies between 4 and 9 MHz and used it that way for a while.
You can make a like conversion on an AM radio you own.
Shortwave frequencies bounce off of the ionosphere and return to earth halfway around
the world. It is easy to receive broadcasts from another continent; depending on
conditions, time of day, signal strength, and target area for the broadcast.
For those with a deeper interest: Once while vacationing in Oregon I heard a
broadcast from Radio Australia about a radio operator on a naval ship who learned to
recognize the ?fist? or touch of wireless operators from other ships before he heard
their call signs. When WW II was about to break out the German radiomen ceased using
their call signs to hide the identity of their ships and their location, but he knew
each one from his distinctive ?fist? on the Morse code key. The radio signals also
modulated in a distinctive way when a ship was transmitting from one particular area.
Not only could he identify the German ships from the way the radiomen tapped out
their Morse code, but he also knew exactly where some of the ships were located at
the time. This is just an example of things you can hear on shortwave broadcasts.
To download the entire ebook, right-click on the download button and select ?Save
link as?? Or left click on the button to open the PDF and save it to your computer
http://delicious.com/gr_greek1/zak (all my pages )
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THE INFORMATION IN THIS ARTICLE IS FREE. It may be copied, distributed
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