As previously mentioned, those frequencies are regular centres of activity for some of the Amateur digital modes; they are all within Amateur Radio allocations.
As for Horsefly, I shall wait to see if anyone can correctly identify it! ;) Jason G7RUX On Mon, 5 Feb 2018 at 17:48, Ulrich Rohde via time-nuts <[email protected]> wrote: > I have heard similar time signals at 18.1 MHz. > > 73 de N1UL > > In a message dated 2/5/2018 12:34:36 PM Eastern Standard Time, > [email protected] writes: > > > Ha, so I was jumping around looking for the same and found a guy on > 15.016Mhz running through random characters phonetically and then signing, > “this completes X characters, Horsefly out.” What the heck was that? > > Regards, > > Jerry > > > Jerry Hancock > [email protected] > (415) 215-3779 > > > On Feb 5, 2018, at 9:18 AM, Scott Armstrong <[email protected]> wrote: > > > > Hi Graham, > > > > I am listening to one of those "time pips" on 30m right now. (1714 utc > > 02/05/2018). > > Frequency is 10.105. > > > > The best I can tell with my calibrated ears and eyes, it appears to be in > > sync with WWV. Signal strength is about a s6-7. > > > > I also heard this on Saturday 02/03/2018 about the same frequency but > > later in the day. > > > > -Scott AA5AM > > EM13sg - Blue Ridge TX > > > > On Sun, Feb 4, 2018 at 4:31 PM, Graham <[email protected]> wrote: > > > >> For some time there have been occasional reports of time pips on a > number > >> HF frequencies other than the well known CHU, WWV, (etc...) signals. > >> > >> For example 10140, 10145, 7040, 7065, 7105, 7120 kHz and likely others. > >> > >> The pips are approximately 15 to 16ms in duration and appear to locked > to > >> UTC but unlike WWV or CHU they are continuous minute by minute. > >> > >> Assuming the pips are synchronized to UTC, simply time of arrival with > all > >> of its issues on HF plus signal strength seems to indicated a source in > >> North America. > >> > >> The frequencies and time of activity might indicate that it is some > >> amateur radio operator playing around but it might not be, the amateur > >> 10MHz frequencies is shared with other users. The pips seem to be > >> transmitted at a fairly high power level. > >> > >> I know there is ongoing testing of eLoran and other initiatives > >> researching GPS backup systems. > >> > >> Anyone aware of any group doing any such testing which might be found on > >> HF like this? > >> > >> cheers, Graham ve3gtc > >> > >> _______________________________________________ > >> time-nuts mailing list -- [email protected] > >> To unsubscribe, go to https://www.febo.com/cgi-bin/m > >> ailman/listinfo/time-nuts > >> and follow the instructions there. > >> > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
