It all depends on the kind of digital that will be used down there, and if
it will be encrypted in any way or not.
On Thu, 3 Aug 2006, Frederick wrote:
> Hi
> I wonder if there is an out board analog to digital converter?
> God bless,
> Mark WZ0K
> God loves you!
> My personal prayer book.
> Add your prayer or pray for others at the following link.
> http://prayerbook.homewithgod.com/cgi-bin/prayerbook/multi.pl?131961113534708:24:0
>
> http://lists.topica.com/lists/funhamradio.
> http://groups.google.com/group/funhamradio-list
>
> http://funhamradio.bloki.com
> ----- Original Message -----
> From: "Jeff Kenyon" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, August 03, 2006 4:08 PM
> Subject: Re: New VLF Radio Technology (fwd)
>
>
> > We also have to consider a brand new digital standard too. I wonder what
> > that would be considering that interference and electrical noise is so
> > common down there.
> >
> >
> >
> >
> >
> > On Thu, 3 Aug 2006, Colin McDonald wrote:
> >
> >> are you sure it goes to 30K, and not 300K?
> >> 300K is a bit more common for your average HF wide band receiver.
> >> 100 is the next most common.
> >>
> >> at any rate, its about time they start using ground penetrating RF
> >> signals
> >> to communicate.
> >> I think there has been some research by NASA into those possibilities,
> >> but
> >> nothing camercial yet.
> >> I wonder what freq range they are looking at using.
> >>
> >> 73
> >> Colin, V A6BKX
> >> ----- Original Message -----
> >> From: "Jeff Kenyon" <[log in to unmask]>
> >> To: <[log in to unmask]>
> >> Sent: Thursday, August 03, 2006 4:25 PM
> >> Subject: New VLF Radio Technology (fwd)
> >>
> >>
> >> > Hi everyone, I just saw this and it came in with the last post about FM
> >> > DX. I don't konw about the rest of you, but the lowest my equipment
> >> > will
> >> > go in frequencies is 100 KHz on the F6A.
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > ---------- Forwarded message ----------
> >> > Date: Thu, 3 Aug 2006 15:17:32 -0700
> >> > From: Punworg <[log in to unmask]>
> >> > To: [log in to unmask]
> >> > Subject: New VLF Radio Technology
> >> >
> >> > Quick! Somebody design some new scanners!
> >> > ---------------------------------------
> >> > New 'underground radio' technology improves emergency
> >> > capabilities
> >> >
> >> > New Mexico Business Weekly - 12:43 PM MDT Wednesday
> >> >
> >> > Los Alamos National Laboratory says Vital Alert
> >> > Technologies Inc. has signed two exclusive license
> >> > agreements with the lab for Underground Radio=99, a
> >> > technology that will provide two-way voice and text
> >> > capability known as Through-The-Earth-Communication=99
> >> > for first responders, rescue and security teams,
> >> > underground miners and the public in critical
> >> > emergency situations.
> >> >
> >> > Underground Radio, originally developed by LANL for
> >> > the Department of Energy, is being commercialized by
> >> > Vital Alert Technologies for use by emergency crews in
> >> > urban centers and by the mining industry.
> >> >
> >> > Vital Alert is a wholly-owned subsidiary of Vital
> >> > Alert Communication Inc. Vital Alert develops pre- and
> >> > post-emergency, safety and rescue technology for the
> >> > urban and mining communications sectors.
> >> >
> >> > "The new technology is a breakthrough in digital and
> >> > wireless communications," says Joe Miller, president
> >> > and CEO of Vital Alert, in a news release. "As a pre-
> >> > and post-emergency warning, evacuation and rescue
> >> > communication system, it solves radio frequency
> >> > failure problems and eliminates systems' downtime
> >> > complications in difficult environments such as
> >> > subways, tunnels, skyscrapers and mines. The new
> >> > technology will also greatly enhance the ability of
> >> > mining companies to protect their workers."
> >> >
> >> > Underground Radio uses very low frequency (VLF)
> >> > electromagnetic radiation and digital audio
> >> > compression technologies to carry voice and text data.
> >> > The VLF signals also can transmit tracking and
> >> > location data for radio users in case they are unable
> >> > to respond.
> >> >
> >> > "This is a technical solution to the problem of voice
> >> > communication in underground areas," said David
> >> > Reagor, the principal investigator of the Los Alamos
> >> > team that originally developed the technology. "It's
> >> > also inexpensive to build."
> >> >
> >> > Underground Radio can be used to alert individuals of
> >> > underground conditions during blasts, fires or
> >> > collapses, or to locate trapped miners. The technology
> >> > was designed to provide convenient, portable
> >> > underground communication and a data link to robotic
> >> > machines.
> >> >
> >> > Peter Vieth
> >> > KB4FVJ
> >> > Roanoke, VA
> >> >
> >> > __________________________________________________
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> >> > http://mail.yahoo.com
> >> >
> >> > --
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> >>
> >
> >
>
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