Re: Chad (was: NYS AG Cuomo settles with VZ Wirelss on

Re: Chad (was: NYS AG Cuomo settles with VZ Wirelss on "unlimited" da)

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Subject Author Date
Re: Chad (was: NYS AG Cuomo settles with VZ Wirelss on "unlimited" da) Al Gillis 10-30-2007
Posted by Al Gillis on October 30, 2007, 1:35 am
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>
>>Trivia question: when first establishing contact, the stations would
>>often send a series of "RY" characters repeatedly. Why?
>>
>
> Alternating pattern of 0s and 1s in 5-level Baudot code....useful for
> adjusting receiver/TU tuning, rangefinder setting on printer, etc. as
> well as distinctive sounding.
>
>
> ***** Moderator's Note *****
>
> Closer still. _How_ was the receiver/TU adjusted?
>
> Bill Horne
> Temporary Moderator
>

As a quick and dirty adjustment of the Range Finder we'd set up to receive
RYs (alternating marks and spaces) and then adjust the Range Finder one way
until the printer garbled and then adjust it the other way until it garbled
again. Setting the Range Finder midway between the two positions produced
good copy.


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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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