Empathy List Archives

G

Graham

Sun, Feb 4, 2018 10:31 PM

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

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

MD

Magnus Danielson

Sun, Feb 4, 2018 11:03 PM

Hi,

You should look at WSPR, QRSS, RTTY, JT65, JT8 etc which all belong to a
set of amateur digital modes which show up on those frequencies.

http://www.g6nhu.co.uk/frequencies.html
http://www.rttycontesting.com/rtty/rtty-sub-bands/

Cheers,
Magnus

On 02/04/2018 11:31 PM, Graham 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 -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Hi, You should look at WSPR, QRSS, RTTY, JT65, JT8 etc which all belong to a set of amateur digital modes which show up on those frequencies. http://www.g6nhu.co.uk/frequencies.html http://www.rttycontesting.com/rtty/rtty-sub-bands/ Cheers, Magnus On 02/04/2018 11:31 PM, Graham 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 -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

SA

Scott Armstrong

Mon, Feb 5, 2018 5:18 PM

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@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

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.

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@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 > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >

JH

Jerry Hancock

Mon, Feb 5, 2018 5:33 PM

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@hanler.com
(415) 215-3779

On Feb 5, 2018, at 9:18 AM, Scott Armstrong aa5am@vntx.net wrote: