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: [email protected] [mailto:[email protected]] On Behalf Of Charlie T Sent: 13 July 2018 08:13 To: [email protected] 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: [email protected] <[email protected]> On Behalf Of Mike Flowers Sent: Friday, July 13, 2018 10:50 AM To: 'Elecraft Reflector' <[email protected]> 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: [email protected] > <[email protected]> > On Behalf Of Michael Bower > Sent: Friday, July 13, 2018 7:48 AM > To: [email protected] > Cc: Elecraft <[email protected]> > 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 <[email protected]> wrote: > > > Interesting article on the ARRL web site this morning about > > communications assisting the Thailand cave rescue using 87 KHz SSB. > > > > Ted, KN1CBR > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > This list hosted by: http://www.qsl.net Please help support this > > email > > list: http://www.qsl.net/donate.html Message delivered to > > [email protected] > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message > delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
