That time you mention is interesting because the earth's resonate schuman waves are also strongest at 22 utc..

could be a link, maybe research or something else going on..

My chart shows it a mariners beacon and weather warning station for the N & W Indian Ocean.

There are a number of these stations around the world. The pulse is so ships know they are on 14.320MHz and have not drifted off. and they can use it with a direction finder

Just to keep this going... today the tones are strings of dual-tones. At around 18:45UTC I'm getting S7 up here in New England with some signal fading. I can detect varying sets of dual tones. 37 pulses at roughly 1.2sec and then the tone-pair changes. Five minutes later and the tones have dropped to just above background. It almost sounds like there are more than one transmitter.

Originally posted by ANNED
My chart shows it a mariners beacon and weather warning station for the N & W Indian Ocean.

There are a number of these stations around the world. The pulse is so ships know they are on 14.320MHz and have not drifted off. and they can use it with a direction finder

I see that the sub-band 14.250 to 14.350 is shared with fixed stations in certain countries in the Eastern hemisphere, including Russia, China, Iran, Ukraine, and many of the former central Asian republics of the old Soviet Union. To which nation was this maritime station on 14.320 supposed to be attributed? No one has reported hearing weather warnings or call sign identifications in the signal being discussed on this thread. I've heard such maritime stations many times. They send a series of tone pulses and then pause and give their call sign, repeating this pattern continuously. Ross

Signal heard only very weakly and briefly, yesterday and today, at around 17:00 UT, give or take a bit. I am looking into the possibility of doing some rough direction finding on this signal, when it comes back on strongly enough. This can be quite difficult to do with signals that fade in and out. *** To follow up on my last post, the fixed service radio stations allowed in certain Eastern Hemisphere countries on 14.250 to 14.350 MHz are intended to send send signals between two fixed stations, not to vessels. They are limited to about 250 watts of power, which would be impractically low for a maritime station. These typically use 3000 to 5000 watts. Could the notation cited by ANNED have been about an Amateur Radio Maritime net? Nets are arrangements for hams to meet over the radio on a particular frequency, at specific times. Ross

Looking further into the issue of Amateur Radio maritime nets, I find the following: Many listings of such nets mention 'Ray's Net' which is based in Perth, Western Australia, on the Indian Ocean coast. It is or was held on the frequency of 14.320 MHz. It is described as giving weather warning bulletins and communicating with vessels in the Northern and Western Indian Ocean It is reported to be on the air between 11:15 and 11:30 UT. This is such a close match to the description given for a supposed commercial maritime station on 14.320, that I feel it must have been the source of the confusion. It is not clear if this net, at this frequency is still in operation. In any case its schedule does not match the times the signal currently under discussion is reported to have been heard. Neither does it have the sort of verbal and message handling traffic that a maritime net would. Ross

I'm hearing the signal consistently, and fairly strong this morning, (1800-1815 UT) on the West coast of the United States; S.5 much of the time. A good opportunity for anyone who wants to try to hear it. Will try again to get a rough sense of the direction of the signal source from here, using a portable receiver and directional antenna arrangement. Ross

The strange, pulsating signal is still being heard; intermittently, as before. It can not always be heard at the stated times, nor can it be heard every day. This obviously makes it difficult for some to take or maintain an interest in it, and for even the most patient and persistent observers to get information about it. I find that the signal is now more likely to be heard from 23:30 to 01:15 Universal time, than the hours previously noted. The signal has persisted for over 7 weeks. As more and more routine explanations are suggested, and then must be discarded as unworkable, the more mysterious the signal appears.

Wonder if it has anything to do with the goings-on on 14.275 and 14.313. If you are not familiar just look up VE7KFM on Google. Apparently its been an issue for years and its not likely to end anytime soon. I will have a listen around later today and see what I hear.

I'm aware of the situation you mention on 20 meters. I don't know of any connection to the signal on 14.320 MHz. One also hears normal ham traffic on and very near '.320, but not the sort of things heard on '.313, etc. The signal on 14.320 MHz can be very elusive. Sometimes disappears for days at a time. It can take a good deal of patience and persistence to hear it.