[time-nuts] WWVB and Free Democracies Survival

Brooke Clarke brooke at pacific.net
Mon Jul 16 20:03:13 UTC 2012


Hi Didier:

Yes, here's a table with some sub com frequencies:
http://www.prc68.com/I/FA.shtml#ELF

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html

Didier Juges wrote:
> I  believe ELF is more like 100 Hz, which can be received much deeper,  so the sub can stay at the bottom.  24kHz is VLF.
>
> Didier KO4BB
>
>
>
> Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
>
>> On 07/16/2012 03:28 AM, Tom Miller wrote:
>>> I believe they called that system a "bell ringer". It let the sub
>> know
>>> that it had to come close to the surface to receive new information.
>>> I'll need to google around to find more about it.
>>>
>>> We had a ELF transmitter (NSS) in Annapolis that transmitted about 1
>> MW
>>> at about 24 kHz. Anyone ever seen 3 inch diameter litz wire?
>> We had the ELF transmitter at Grimeton (SAQ) transmitting about 200 kHz
>>
>> at 17.2 kHz using the Alexanderson alternator. I think the litz wire
>> was
>> 4 inch in diameter as I recall it. It was cutting edge in 1924.
>> It was initially used for telegraph traffic to the US, and the Long
>> Island main station. It was really never keyed by hand, it was keyed
>> remote with optical keyer and messages taped back-to-back. After its
>> main service for telegraph messages was no longer motivate it, it got
>> used as the "bell ringer" for our subs and kept operational and
>> maintained up till about 1996 and it has since been taken care off so
>> it
>> can be used for museeum. It's now on UNESCOs world-heritage list.
>>
>> Links:
>> http://www.grimetonradio.se/
>> http://www.radiostationengrimeton.se/
>> http://en.wikipedia.org/wiki/Grimeton_VLF_transmitter
>> http://www.grimeton.org/
>> http://www.alexander.n.se/
>>
>> Do visit Grimeton if you are in south of Sweden. You can also tune in
>> to
>> it's transmissions and report back.
>>
>> The remaining submarine radiostation in Ruda could actually be turn
>> into
>> a time-code transmitter. It's a matter of financing it and giving the
>> order.
>>
>> Cheers,
>> Magnus
>>
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