[Elecraft] OT - The HeyPhone

[David Cutter]

I liaised with John around 25 years ago to set up what we thought would be a
unique event: communicating from underground in Stump Cross Caverns North
Yorkshire, to an HF station on ground, then to the world.  We had a couple
dozen scouts and members of my club helping at the event for  JOTA.  We ran
out of time before we solved all the little issues but it was an intersting
experiment.  He was using an original Hey Phone and wasn't sure if it was
legal - I thought it was arguably not a radio wave, ie could propagate into
space.  At the time we were licensed for 73kHz but that was too close to big
inerferers, Rugby I think, hence moving up a little.  
David G3UNA Ripon ADARS

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T
Sent: 13 July 2018 08:13
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] OT - The HeyPhone

When you click on the link, be sure to capture BOTH lines because if you
simply click on top line, it will NOT add the second line and will come back
with a "file-not-found" pop-up.

73, Charlie k3ICH





-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Mike Flowers
Sent: Friday, July 13, 2018 10:50 AM
To: 'Elecraft Reflector' <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] OT - The HeyPhone

http://www.arrl.org/news/radio-technology-designed-by-radio-amateur-used-in-
thailand-cave-rescue


- 73 and good DX de Mike, K6MKF, Past President - NCDXC 

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> <elecraft-bounces at mailman.qth.net>
> On Behalf Of Michael Bower
> Sent: Friday, July 13, 2018 7:48 AM
> To: edauer at law.du.edu
> Cc: Elecraft <elecraft at mailman.qth.net>
> Subject: Re: [Elecraft] OT - The HeyPhone
> 
> If this article is for public consumption (not just ARRL members), 
> could
you please
> post a link?
> 
> If not for public consumption, they missed a great opportunity.
> 
> Michael N4NMR
> 
> 
> On Fri, Jul 13, 2018 at 10:29 AM Dauer, Edward <edauer at law.du.edu> wrote:
> 
> > Interesting article on the ARRL web site this morning about 
> > communications assisting the Thailand cave rescue using 87 KHz SSB.
> >
> > Ted, KN1CBR
> >
> >
> > ______________________________________________________________
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Message
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