[time-nuts] unidentified HF time pips

Jason Gardner wigglepig at gmail.com
Mon Feb 5 13:01:46 EST 2018


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 <time-nuts at febo.com>
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,
> jerry at hanler.com 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
> jerry at hanler.com
> (415) 215-3779
>
> > On Feb 5, 2018, at 9:18 AM, Scott Armstrong <aa5am at vntx.net> 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 <planophore at aei.ca> 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
> >>
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