Thanks Dick, Ok with interference that close it would help. Shielding doesnt always provide much at these frequencies and can reduce the Q of the loop.
Best Wishes Alan G3NYK ----- Original Message ----- From: "Dick Moore" <rich...@hughes.net> To: <time-nuts@febo.com> Sent: Sunday, October 03, 2010 6:56 AM Subject: Re: [time-nuts] 60kHz Loop antenna > Alan, I did try a real half-a$$ed pile of wire and a tuning cap. My shop has fluorescent lights and I got a lot of noise. Once I built the shielded loop and got it lined up with east and a little south (I'm in Washington State), WWVB came in gang-busters. This was before I built a GPSDO or two and then got a TBolt. > > The shielded loop has just been sitting for years. > > Dick > > > On Oct 2, 2010, at 3:42 PM, time-nuts-requ...@febo.com wrote: > > > > Message: 5 > > Date: Sat, 2 Oct 2010 23:40:52 +0100 > > From: "Alan Melia" <alan.me...@btinternet.com> > > Subject: Re: [time-nuts] HP/Dymek DY-5842 > > To: "Discussion of precise time and frequency measurement" > > <time-nuts@febo.com> > > Message-ID: <015501cb6283$10071ad0$4001a...@lark> > > Content-Type: text/plain; charset="iso-8859-1" > > > > Dick did you ever try an unscreened loop ?? they should be just as good if > > not better at 60kHz. > > Alan G3NYK > > > > ----- Original Message ----- > > From: "Dick Moore" <rich...@hughes.net> > > To: <time-nuts@febo.com> > > Sent: Saturday, October 02, 2010 11:22 PM > > Subject: Re: [time-nuts] HP/Dymek DY-5842 > > > > > >> I used to have one of these marvelous receivers and sold it. I still have > > the WWVB/60kHz shielded loop antenna that I made for it and although it is > > big, at about 30" x 30" x 2" or so, I believe it will ship FedEx or UPS OK. > > It's free to anyone who'll pay the shipping. It's made out of copper pipe > > and works quite well, and is tuned for the 5842 at 60kHz. > >> > >> Best, > >> Dick Moore > >> > >> > >> On Oct 1, 2010, at 3:50 PM, time-nuts-requ...@febo.com wrote: > >> > >> > >>> Message: 5 > >>> Date: Fri, 01 Oct 2010 16:34:57 -0600 > >>> From: ziggy9 <zig...@pumpkinbrook.com> > >>> Subject: [time-nuts] Possibly OT - Any interest in a vintage HP/Dymec > >>> DY-5842 VLF receiver? > >>> To: <time-nuts@febo.com> > >>> Message-ID: <990bd60b3c5d084910c10c8855912...@pumpkinbrook.com> > >>> Content-Type: text/plain; charset=UTF-8 > >>> > >>> > >>> Fellow time-nuts: > >>> I've got a circa 1964 DY-5842 VLF receiver. This is (was) operated in > >>> conjunction with an external time interval counter to make a frequency > >>> comparison. So you would select WWVL for example, and use that as your > >>> primary standard for comparison to your local standard. It's got 5 > > crystals > >>> in it: 16, 18, 19.8, 20, and 60 kHz (listed as GBR, NBA, NPM, WWVL, > > WWVB). > >>> It works and I have the manual. The thing is, the interest in something > >>> like this is bound to be a bit narrow, so I thought I'd mention it here. > >>> > >>> So if there are any collectors, equipment museums, etc. that might be > >>> interested in this, please let me know. I'm a bit sentimental about this > >>> thing, it's sort of a bit of history, and from what I can tell, somewhat > >>> rare (doesnt make it worth anything though :). Since it's a bit of a > >>> curiosity, I'd like to pass it to someone that might be interested in it > >>> rather than just tossing it. I can always provide more details to anyone > >>> that wants them. > >>> > >>> Best regards, > >>> Paul Davis - K9MR > >>> > >>> > >>> > >>> > >>> ------------------------------ > >>> > >>> Message: 6 > >>> Date: Fri, 1 Oct 2010 18:42:16 -0400 > >>> From: "jmfranke" <jmfra...@cox.net> > >>> Subject: Re: [time-nuts] Possibly OT - Any interest in a vintage > >>> HP/Dymec DY-5842 VLF receiver? > >>> To: "Discussion of precise time and frequency measurement" > >>> <time-nuts@febo.com> > >>> Message-ID: <b7ea2d4ab6f34ab19da25cfdc85a6...@franke> > >>> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > >>> reply-type=original > >>> > >>> I am very interested. Do you have any images? > >>> > >>> John Franke WA4WDL > >>> Portsmouth, VA 23703 > >>> > >>> -------------------------------------------------- > >>> From: "ziggy9" <zig...@pumpkinbrook.com> > >>> Sent: Friday, October 01, 2010 6:34 PM > >>> To: <time-nuts@febo.com> > >>> Subject: [time-nuts] Possibly OT - Any interest in a vintage HP/Dymec > >>> DY-5842 VLF receiver? > >>> > >>>> > >>>> Fellow time-nuts: > >>>> I've got a circa 1964 DY-5842 VLF receiver. This is (was) operated in > >>>> conjunction with an external time interval counter to make a frequency > >>>> comparison. So you would select WWVL for example, and use that as your > >>>> primary standard for comparison to your local standard. It's got 5 > >>>> crystals > >>>> in it: 16, 18, 19.8, 20, and 60 kHz (listed as GBR, NBA, NPM, WWVL, > > WWVB). > >>>> It works and I have the manual. The thing is, the interest in something > >>>> like this is bound to be a bit narrow, so I thought I'd mention it > > here. > >>>> > >>>> So if there are any collectors, equipment museums, etc. that might be > >>>> interested in this, please let me know. I'm a bit sentimental about > > this > >>>> thing, it's sort of a bit of history, and from what I can tell, > > somewhat > >>>> rare (doesnt make it worth anything though :). Since it's a bit of a > >>>> curiosity, I'd like to pass it to someone that might be interested in > > it > >>>> rather than just tossing it. I can always provide more details to > > anyone > >>>> that wants them. > >>>> > >>>> Best regards, > >>>> Paul Davis - K9MR > >>>> > >>>> > >>>> _______________________________________________ > >>>> time-nuts mailing list -- time-nuts@febo.com > >>>> To unsubscribe, go to > >>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>> and follow the instructions there. > >>>> > >>> > >>> > >>> > >>> > >>> ------------------------------ > >>> > >>> Message: 7 > >>> Date: Fri, 01 Oct 2010 17:50:17 -0500 > >>> From: Brian Kirby <kilodelta4foxm...@gmail.com> > >>> Subject: Re: [time-nuts] Possibly OT - Any interest in a vintage > >>> HP/Dymec DY-5842 VLF receiver? > >>> To: Discussion of precise time and frequency measurement > >>> <time-nuts@febo.com> > >>> Message-ID: <4ca665a9.1090...@gmail.com> > >>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >>> > >>> You might consider contacting Dr. Ken Kuhn -- kennathak...@gmail.com > >>> > >>> check his HP museum at http://www.kennethkuhn.com/hpmuseum/ > >>> > >>> Brian Kirby KD4FM > >>> > >>> > >>> > >>> On 10/1/2010 5:34 PM, ziggy9 wrote: > >>>> > >>>> Fellow time-nuts: > >>>> I've got a circa 1964 DY-5842 VLF receiver. This is (was) operated in > >>>> conjunction with an external time interval counter to make a frequency > >>>> comparison. So you would select WWVL for example, and use that as your > >>>> primary standard for comparison to your local standard. It's got 5 > > crystals > >>>> in it: 16, 18, 19.8, 20, and 60 kHz (listed as GBR, NBA, NPM, WWVL, > > WWVB). > >>>> It works and I have the manual. The thing is, the interest in something > >>>> like this is bound to be a bit narrow, so I thought I'd mention it > > here. > >>>> > >>>> So if there are any collectors, equipment museums, etc. that might be > >>>> interested in this, please let me know. I'm a bit sentimental about > > this > >>>> thing, it's sort of a bit of history, and from what I can tell, > > somewhat > >>>> rare (doesnt make it worth anything though :). Since it's a bit of a > >>>> curiosity, I'd like to pass it to someone that might be interested in > > it > >>>> rather than just tossing it. I can always provide more details to > > anyone > >>>> that wants them. > >>>> > >>>> Best regards, > >>>> Paul Davis - K9MR > >>>> > >>>> > >>>> _______________________________________________ > >>>> time-nuts mailing list -- time-nuts@febo.com > >>>> To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >>>> and follow the instructions there. > >>>> > >>> > >> > >> > >> _______________________________________________ > >> time-nuts mailing list -- time-nuts@febo.com > >> To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > >> and follow the instructions there. > > > > > > > > > > ------------------------------ > > > > _______________________________________________ > > time-nuts mailing list > > time-nuts@febo.com > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > > End of time-nuts Digest, Vol 75, Issue 4 > > **************************************** > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.