[ARC5] A British Version of ZB?

Brooke Clarke brooke at pacific.net
Sat Apr 3 17:33:13 EDT 2021


Hi Al:

Do you know if there's a patent on the YE-ZB system?

-- 
Have Fun,

Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.

-------- Original Message --------
> Wayne,
>
> Yes, the system described in "(1.2) Equipment at Present in Use - (1.2.1) Type-72DP Beacon." appears to be quite 
> similar to the US Navy YE-ZB system   Take a look at my presentation. 
> <http://www.skywaves.ar88.net/Presentations/YE-ZB%20Presentation.pdf>
>
> VY 73,
> Al
>
>
>
> On 4/3/2021 1:18 PM, releazer at earthlink.net wrote:
>> The paper athttp://www.radiomuseum.co.uk/R1147/naval.pdf  describes what sounds like a version of the ARR-1/ARR-2 system but uses "supersonic" modulation of the ID signal as a means of subterfuge.
>>
>> Wayne
>> WB5WSV
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>
> -- 
> Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net
>
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