[ARC5] ZB discussion!

[J. Forster]

>
> The way I understand it was that those frequencies were way above what the
> Japanese could do during the war.  I have never heard of them having a
> surveillance capability anywhere near those frequencies.  It was a while
> before we got the TBS at those frequencies.

TBS is 60 to 80 MHz.
ZB was areond 240 MHz.
ASB-5 is around 440 MHz as I remember.

 Radar was another matter, of course.

> Not only that but it was essentially a line-of-sight system so an enemy
> snooper would have to be fairly close to the transmitter to pick up the
> signal.

That's part of the reason I mentioned modified Rebecca hardware. It's
airborn.

-John

================



> As I recall, and I don't have the manual handy, the beam rotated
> so
> the signal would not have been constant for someone wanting to home in on
> it.
>
> I guess I am going to have to go look for the manual.
>
> Lenox
>
>
>
>
> -----Original Message-----
> From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net]
> On
> Behalf Of gordon white
>
> I have always wondered at the use of the ZB by carriers. Couldn't the
> Japanese have simply homed in on the carrier wave like a DF fix on a
> broadcast station?
>
> - Gordon White
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