[time-nuts] Antique precision timing device without electronics

Bob Bownes bownes at gmail.com
Fri Mar 17 21:06:51 EDT 2017


Don't forget, seawater is the return path...

> On Mar 17, 2017, at 18:04, Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> 
> eric at scace.org said:
>>   Frequencies around 15 Hz were common on early 20th century cables,
>> depending on the degree of success in compensating for the inherent
>> capacitance on a cable thousands of miles long surrounded by conductive
>> sea water.
> 
> Is the sea water relevant?
> 
> Does enough energy leak through the shield so that it matters?  How well does 
> coax work at low frequencies?
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
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