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The FBI CW Radio Network (coldwar-c4i.net)
20 points by wglb 12 days ago | hide | past | favorite | 8 comments





It looks like this may be a list of FBI ALE ("Automatic Link Establishment") radio stations. See page 17 of https://worldradiohistory.com/Archive-Monitoring-TImes/2000s... and https://www.sigidwiki.com/wiki/Automatic_Link_Establishment_...

From wikipedia (https://en.wikipedia.org/wiki/Automatic_link_establishment):

"[ALE is] the worldwide de facto standard for digitally initiating and sustaining HF radio communications.[1] ALE is a feature in an HF communications radio transceiver system that enables the radio station to make contact, or initiate a circuit, between itself and another HF radio station or network of stations. The purpose is to provide a reliable rapid method of calling and connecting during constantly changing HF ionospheric propagation, reception interference, and shared spectrum use of busy or congested HF channels."


Considering this network was running from 1957 through 1976, I think "CW" in this context means "Continuous Wave", the (somewhat incorrect) synonym for Morse Code?

There is nothing incorrect about Continuous Wave, as it refers to the lack of modulation of any kind on the signal.

According to the wikipedia entry you noted, ALE did not exist in 1957. One could conclude that ALE re-used the station callsigns assigned for CW.

What was this used for? With out more information (that I couldn't really find) this just seems like a list of cities.

Yes, without context it's just not interesting. I wanted to map the cities, but without state name, quite a few of the cities are ambiguous. For example, MA, MO, and OR all have a city named Springfield.

Same. Hopefully OP will give some context.

That said, the rest of the site is worth browsing. I see it appear here on HN every so often, and it's a neat dive.

As an aside, I met the page's maintainer, Albert LaFrance, in an IT security course in college. Cool guy. He told me he got interested after wondering what the large microwave relay tower that used to be in Tyson's Corner, VA was used for. He started collecting information and inviting contributions after that. https://en.wikipedia.org/wiki/Tysons_Corner_Communications_T...


Given the context, I assume it was a post nuclear attack contingency communications system. We don't have much of this type of thing anymore.



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