[ARC5] What Do Y'all Think About This? - MORE

D C _Mac_ Macdonald k2gkk at hotmail.com
Mon Dec 30 17:12:36 EST 2013


>From what I can see and guess from other info we've seen here, it MIGHT have been used to receive slow speed, coded messages being transmitted by slow CW over those high powered VLF transmitters.  Anybody's guess, probably except for those "in the know" who probably wouldn't reveal it anyway!
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* Oklahoma City, OK * 
* USAF, Ret (61-81) * 
* * * * * * * * * * * 
 
 
> Date: Mon, 30 Dec 2013 13:50:57 -0800
> From: jfor at quikus.com
> To: jcoward5452 at aol.com
> CC: arc5 at mailman.qth.net; releazer at earthlink.net
> Subject: Re: [ARC5] What Do Y'all Think About This? - MORE
> 
> My best guess is a one-way link for special ops or insurgents or
> something. The Txs were very powerful. From the era, perhaps Cuba ??
> 
> Kinda like the BBC sending messages to the Resistance.
> 
> -John
> 
> =============
> 
> 
> >
> > This is all very interesting but why make a pocket portable set like this?
> >  Jay
> >
> >
> > -----Original Message-----
> > From: J. Forster <jfor at quikus.com>
> > To: Robert Eleazer <releazer at earthlink.net>
> > Cc: arc5 <arc5 at mailman.qth.net>
> > Sent: Mon, Dec 30, 2013 12:13 pm
> > Subject: Re: [ARC5] What Do Y'all Think About This? - MORE
> >
> >
> > It's a Navy VLF Frequency and Time Receiver.
> >
> > See:  http://www.virhistory.com/navy/freq-equip.htm
> >
> > On the top of the eBay unit there is a table (which I missed at first
> > glance, my bad):
> >
> > 14.8  NAA
> > 15.5  NSS
> > 17.4  NDT
> > 18.6  NPG
> > 19.8  NPM
> >
> > Put 'NSS' into Nick England's site (URL above). Excerpt:
> >
> > "WORLDWIDE VLF FREQUENCY AND TIME SYSTEM
> > NRL's precise frequency and time developments have been applied to the
> > Navy's high-power VLF communication stations (NAA, NSS, NBA, NPG, NPM, NDT
> > and NWC), making possible precise frequency and time service in addition
> > to the communication function (1959 to 1967). England's station GBR also
> > provides service. NRL's developments have also been applied at the Naval
> > Observatory (NOBSY) to serve its frequency and time determination and
> > surveillance functions. NOBSY has astronomical observation stations (OBS)
> > at Washington, D.C., and Richmond, Florida. NRL provides NOBSY with atomic
> > time data, over a special radio circuit, which is used in combination with
> > data from the NOBSY clock system in the determination of standard
> > frequency and time. The system serves all military services, other
> > government organizations, such as the Bureau of Standards (NBS),
> > commercial interests, and organizations of other countries. International
> > cooperation is accomplished through the International Radio Consultative
> > Committee (CCIR) of the International Telecommunications Union (ITU), an
> > organization under the United Nations."
> >
> > I don't think the eBay unit does frequency, BTW.
> >
> > -John
> >
> > ========================
> >
> >
> >
> >
> >
> >
> >> Reference ebay Item 231122508229
> >>
> >> A Spy VLF radio receiver????
> >>
> >> Wayne
> 
 		 	   		  


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