[GreenKeys] Wobbly FSK ?

[Nick England]

Early-mid 1950's - this unit was used to convert really big Navy shore
station CW transmitters to FSK, before the next generation of sideband
rigs started showing up.
Commercially it was the Collins 709B-1.

The text implies it phase wobbles at 200 Hz.

On Tue, Aug 2, 2011 at 4:10 PM, Jim Haynes <jhhaynes at earthlink.net> wrote:
> I've never heard of it before.  What time period do you think this came
> from?  I assume it was back when everybody was using 850Hz shift and
> fairly wide filters to accomodate drift in the transmitter and receiver.
> How rapidly does it wobble?
>
>
>