[AMRadio] frequency sweeper

Robert A. Poff WB3AWJ wb3awj at comcast.net
Thu Jan 21 10:31:16 EST 2010

Could you be chance be referring to these stations: http://www.jcoppens.com/radio/prop/index.en.php 

I've read some articles on them somewhere. 

NDB ? As in Non-Directional Beacon?  As in a NAVAID? 

"Or perhaps it is the gov't controlers sending some sort of signal to the 
NDBs stations with the new information to im press on us!!.   ever wonder why 
the NDB stations are located in high population areas? " 

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