As I understand, it's almost certainly used to send coded messages to Russian agents in case of emergency. The Russians are probably broadcasting a constant tone to reserve the frequency, so other people don't start using it. They say as much in the article.
"Almost certainly" without even basic proof, just picked from nose.
Especially knowing, that in our modern age much more decent methods of communications exist.
So agent have to compromise himself buying receiver capable to tune 4625Khz (thats not easy to find), tune to this frequency and listen each day, raising even more suspicions.
While even at good old times they was reading newspapers or listening to local radio for steganographic-like messages, which looks much more innocent.
No Real Mystery (Score:5, Informative)
As I understand, it's almost certainly used to send coded messages to Russian agents in case of emergency. The Russians are probably broadcasting a constant tone to reserve the frequency, so other people don't start using it. They say as much in the article.
Re:No Real Mystery (Score:1)
Especially knowing, that in our modern age much more decent methods of communications exist.
So agent have to compromise himself buying receiver capable to tune 4625Khz (thats not easy to find), tune to this frequency and listen each day, raising even more suspicions.
While even at good old times they was reading newspapers or listening to local radio for steganographic-like messages, which looks much more innocent.
Re: (Score:1)
$20 from Amazon.
https://www.amazon.com/TIVDIO-... [amazon.com]