76
HF Beacons / Re: Windy and ZN 1251 UTC 8 Dec 2018
« on: December 11, 2018, 0829 UTC »
That's an impressive catch.
Shortwave Pirate Radio In North America And Around The World, And Other Signals That Go Bump In The Night
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It appears it was only on the air during that CW contest.
Seems like marine or other local traffic using the old Trawler Band (1.6 MHz ~ 3.3 MHz) marine AM sets.
Fond memories of listening to fishing vessels in the 1960s, when the Trawler Band in the Gulf of Mexico was very active with these kinds of drifting AM transmissions back then. Or perhaps it was just that old receiver that was drifting
There's another thread about the low power frequency hopping ditter on integer MHz and 500 kHz increments, that began transmitting about a week ago.
https://www.hfunderground.com/board/index.php/topic,48485.0.html
Fascinating, Chris!
Yes, logged the low power frequency hopping ditter on 5010 now, with better signal strength. Checked earlier at 5010 kHz, but a carrier interfering signal masked it.
Report
2018DEC03 0112 UTC
5010.00 kHz CW, UNID, ditter, readable, -102 dBm, but with interference from a carrier.
2018DEC03 0350 UTC
3000.00 kHz CW, UNID, ditter, weak readable, -116 dBm, but with interference from a carrier.
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77
HF Beacons / Re: 6 MHz Western USA Beacons
« on: December 09, 2018, 2025 UTC »
Report
2018DEC09 2015UTC
6626.34 kHz CW, "Rainy", ditter beacon, 19 milliseconds dit duration, 307 milliseconds repetition, weak readable, -117 dBm.
6626.55 kHz AM, "Rocky", tone beacon, 16.1 kHz tone modulation, weak readable -120 dBm.
6700.48 kHz CW, "HexY2k", dasher, beacon, readable, -112 dBm
Ionogram image below shows the nearby Pt. Arguello ionosonde data at the time of the log report, 2018DEC09 2015UTC, with foF2=6.507 MHz and fxI=7.15 MHz.
2018DEC09 2015UTC
6626.34 kHz CW, "Rainy", ditter beacon, 19 milliseconds dit duration, 307 milliseconds repetition, weak readable, -117 dBm.
6626.55 kHz AM, "Rocky", tone beacon, 16.1 kHz tone modulation, weak readable -120 dBm.
6700.48 kHz CW, "HexY2k", dasher, beacon, readable, -112 dBm
Ionogram image below shows the nearby Pt. Arguello ionosonde data at the time of the log report, 2018DEC09 2015UTC, with foF2=6.507 MHz and fxI=7.15 MHz.
78
HF Beacons / Re: 6 MHz Western USA Beacons
« on: December 08, 2018, 2107 UTC »
Highlight of this report: Rainy ditter beacon logged on 6626 kHz with good readability during mid-day.
Report
2018DEC08 1922 UTC
6626.40 kHz CW, "Rainy", ditter beacon, 320 millisecond repetition, 16 millisecond duration, good readable, -120 dBm
6626.64 kHz AM, "Rocky", beacon, audio tone 20 kHz? modulation, very weak, -135 dBm
6700.46 kHz CW, "HexY2k", dasher beacon, 892 millisecond repetition, 447 millisecond duration, good readable, -110 dBm
Waterfall image below shows Rainy ditter and HexY2k dasher with good readability.
Report
2018DEC08 1922 UTC
6626.40 kHz CW, "Rainy", ditter beacon, 320 millisecond repetition, 16 millisecond duration, good readable, -120 dBm
6626.64 kHz AM, "Rocky", beacon, audio tone 20 kHz? modulation, very weak, -135 dBm
6700.46 kHz CW, "HexY2k", dasher beacon, 892 millisecond repetition, 447 millisecond duration, good readable, -110 dBm
Waterfall image below shows Rainy ditter and HexY2k dasher with good readability.
79
HF Mystery Signals / Re: 2 PPS 0130 UTC 29 Nov 2018
« on: December 08, 2018, 0308 UTC »
Taken as a whole, considering the reports on HFU and elsewhere, the 2 PPS has the typical characteristics of someone testing an antenna system for a (low power ~20 Watt) frequency hopping radio system, out in The Southwest.
Is 2PPS the "Son Of Yosemite Sam" ?
It hops in a sequence like Yosemite Sam did, but faster and more frequencies.
It uses some of the original Yosemite Sam hop frequencies
3700 kHz
4300 kHz
6500 kHz
10500 kHz
And near the Yosemite Sam revised set of additional hop frequencies:
10000 MHz
15000 MHz
Yosemite Sam on SpyNumbers:
http://www.spynumbers.com/YosemiteSam.html
Is 2PPS the "Son Of Yosemite Sam" ?
It hops in a sequence like Yosemite Sam did, but faster and more frequencies.
It uses some of the original Yosemite Sam hop frequencies
3700 kHz
4300 kHz
6500 kHz
10500 kHz
And near the Yosemite Sam revised set of additional hop frequencies:
10000 MHz
15000 MHz
Yosemite Sam on SpyNumbers:
http://www.spynumbers.com/YosemiteSam.html
80
HF Beacons / Re: 6 MHz Western USA Beacons
« on: December 07, 2018, 2244 UTC »
Highlight of this report: 6626 kHz Rocky AM beacon with 20 kHz tone modulation
Report
2018DEC07 2150UTC
6626.00 kHz CW,"Rainy"?, ditter beacon, 95 millisecond dit duration, 775 millisecond repetition, weak readable, -120 dBm
6626.62 kHz AM, "Rocky", beacon, 20.04 kHz tone modulation (USB 6646.66, LSB 6606.58), weak readable, -120 dBm
Note: The Rocky beacon audio tone modulation frequency appears to be increasing significantly as indicated by log reports. It has risen from 3.19 kHz to 20.04 kHz over the past week.
PLAY AUDIO 6626 kHz CW ditter beacon Rainy? 2018DEC07 2150UTC
Waterfall image below shows 6626 kHz Rainy? CW ditter beacon and Rocky AM beacon with 20.04 kHz tone modulation 2018DEC07 2150UTC:
Image below shows ionogram of the nearby Pt. Arguello ionosonde for this log report time interval 2018DEC07 2150UTC:
Report
2018DEC07 2150UTC
6626.00 kHz CW,"Rainy"?, ditter beacon, 95 millisecond dit duration, 775 millisecond repetition, weak readable, -120 dBm
6626.62 kHz AM, "Rocky", beacon, 20.04 kHz tone modulation (USB 6646.66, LSB 6606.58), weak readable, -120 dBm
Note: The Rocky beacon audio tone modulation frequency appears to be increasing significantly as indicated by log reports. It has risen from 3.19 kHz to 20.04 kHz over the past week.
PLAY AUDIO 6626 kHz CW ditter beacon Rainy? 2018DEC07 2150UTC
Waterfall image below shows 6626 kHz Rainy? CW ditter beacon and Rocky AM beacon with 20.04 kHz tone modulation 2018DEC07 2150UTC:
Image below shows ionogram of the nearby Pt. Arguello ionosonde for this log report time interval 2018DEC07 2150UTC:
81
HF Beacons / Re: Y beacon 7025.54 khz Australia
« on: December 07, 2018, 1005 UTC »
So it's either ceased transmitting or it's not in Australia?
It appears it was only on the air during that CW contest.
82
Peskies / Re: Russian and Ukrainian Freebanders 3 MHz Band AM Mode (via SDRs) 6-7 Dec 2018
« on: December 07, 2018, 0516 UTC »Via a KiwiSDR in Lutsk, Ukraine I can hear several informal CB-like QSOs in the 2-4 MHz band, with most activity centering around 3 MHz or 3000 kHz. The transmitters seem to all be off-frequency, sometimes by as many as 2-3 kHz and there isn't really a band plan or channeling like there is with CB...but otherwise this sounds just like CB.
Seems like marine or other local traffic using the old Trawler Band (1.6 MHz ~ 3.3 MHz) marine AM sets.
Fond memories of listening to fishing vessels in the 1960s, when the Trawler Band in the Gulf of Mexico was very active with these kinds of drifting AM transmissions back then. Or perhaps it was just that old receiver that was drifting
83
HF Beacons / Re: 4 MHz Western USA Beacons
« on: December 07, 2018, 0241 UTC »
Highlight of this report: ZN beacon with good signal
Report
2018DEC07 0155UTC
4102.03 kHz CW, Morse beacon, "ZN", good readable, -110 dBm.
4102.86 kHz CW, Morse telemetry beacon, "Windy", W=medium rate, TMP46, B121, good readable, -112 dBm.
Note: The ZN beacon could very well be called the NZ beacon, because the spacing between all the Morse characters, 0.788 sec, is essentially the same. But, since it appears to have some contextual history among other Z beacons, it is being called the ZN beacon.
PLAY AUDIO recording of both ZN and Windy beacons in same passband 4101.5 kHz USB 2018DEC07 0155UTC
PLAY AUDIO recording ZN beacon at 4102.03 kHz CW 2018DEC07 0155UTC
Waterfall image below shows ZN and Windy beacons 4102 kHz 2018DEC07 0155UTC
Report
2018DEC07 0155UTC
4102.03 kHz CW, Morse beacon, "ZN", good readable, -110 dBm.
4102.86 kHz CW, Morse telemetry beacon, "Windy", W=medium rate, TMP46, B121, good readable, -112 dBm.
Note: The ZN beacon could very well be called the NZ beacon, because the spacing between all the Morse characters, 0.788 sec, is essentially the same. But, since it appears to have some contextual history among other Z beacons, it is being called the ZN beacon.
PLAY AUDIO recording of both ZN and Windy beacons in same passband 4101.5 kHz USB 2018DEC07 0155UTC
PLAY AUDIO recording ZN beacon at 4102.03 kHz CW 2018DEC07 0155UTC
Waterfall image below shows ZN and Windy beacons 4102 kHz 2018DEC07 0155UTC
84
HF Mystery Signals / Re: 2 PPS 0130 UTC 29 Nov 2018
« on: December 06, 2018, 0220 UTC »
Highlight of this report: Clear audio recording of the 2pps frequency hopping ditter.
Report
2018DEC06 0203UTC
5500.00 kHz CW, frequency hopping ditter, good readable, -110 dBm.
PLAY AUDIO: clear recording on 5500 kHz of the 2pps CW frequency hopping ditter 2018DEC06 0203UTC
Waterfall image below shows the frequency hopping ditter on 5500 kHz at 2018DEC06 0203UTC:
The 26 logged frequency hops so far:
2000 kHz
2510 Not logged
3000
3500
4000
4500
5010
5500
6000
6500
7000
7500
8000
8500
9000
9500
10010
10500 Not logged
11000
11500 Not logged
12000
12500 Not logged
13000
13500
14000
14500 Not logged
15010
15500 Not logged
16000
16500
17000 Not logged
17500 Not logged
18000 Not logged
18068
18500 Not logged
19000 Not logged
19500
Nil Report update:
2018DEC07 0132UTC The 2pps frequency hopper appears to be offline at this moment.
It is not being logged here now on any of previously logged frequencies.
Report
2018DEC06 0203UTC
5500.00 kHz CW, frequency hopping ditter, good readable, -110 dBm.
PLAY AUDIO: clear recording on 5500 kHz of the 2pps CW frequency hopping ditter 2018DEC06 0203UTC
Waterfall image below shows the frequency hopping ditter on 5500 kHz at 2018DEC06 0203UTC:
The 26 logged frequency hops so far:
2000 kHz
3000
3500
4000
4500
5010
5500
6000
6500
7000
7500
8000
8500
9000
9500
10010
11000
12000
13000
13500
14000
15010
16000
16500
18068
19500
Nil Report update:
2018DEC07 0132UTC The 2pps frequency hopper appears to be offline at this moment.
It is not being logged here now on any of previously logged frequencies.
85
HF Beacons / Re: A 8000 CW 2135 UTC 4 Dec 2018
« on: December 06, 2018, 0152 UTC »Hearing a ditter tonight at 2340 utc on ~8000. About 3 bits per second +/-.
73, Mark
There's another thread about the low power frequency hopping ditter on integer MHz and 500 kHz increments, that began transmitting about a week ago.
https://www.hfunderground.com/board/index.php/topic,48485.0.html
86
HF Beacons / Re: A 8000 CW 2135 UTC 4 Dec 2018
« on: December 04, 2018, 2155 UTC »An old friend is back. I don't think I've logged this one for a long time, maybe a few years? Logs likely here on this board.
Irregularly sends a CW "A". Sometimes a few seconds between transmissions, sometimes a few minutes. Sometimes the A is malformed. A pretty good signal right now. Another of HF's mysteries.
Fascinating, Chris!
87
HF Mystery Signals / Re: 2 PPS 0130 UTC 29 Nov 2018
« on: December 04, 2018, 2031 UTC »
Report
2018DEC04 2030 UTC
The 2pps ditter has not been heard here for the past hour on any of the previously logged frequencies.
2018DEC04 2030 UTC
The 2pps ditter has not been heard here for the past hour on any of the previously logged frequencies.
88
HF Beacons / 7 MHz Western USA Beacons
« on: December 04, 2018, 2023 UTC »
A thread about 7 MHz beacons around Western USA.
If you find these detailed reports useful or interesting, please feel free to reply with any comments.
Highlight of this report: "HI" CW Morse beacon at 7998 kHz
Report
2018DEC04 1945UTC
7998.12 kHz CW, Morse beacon, "HI", good readable, 9.64 seconds repetition, dit duration 128 milliseconds, -117 dBm.
2018DEC04 2002UTC
7998.12 kHz CW, Morse beacon, "HI", stopped abruptly.
PLAY AUDIO 7998.12 kHz CW Morse beacon HI 2018DEC04 1945UTC
Image below of waterfall shows CW beacon HI morse at 7998.12 kHz on 2018DEC04 1945UTC
If you find these detailed reports useful or interesting, please feel free to reply with any comments.
Highlight of this report: "HI" CW Morse beacon at 7998 kHz
Report
2018DEC04 1945UTC
7998.12 kHz CW, Morse beacon, "HI", good readable, 9.64 seconds repetition, dit duration 128 milliseconds, -117 dBm.
2018DEC04 2002UTC
7998.12 kHz CW, Morse beacon, "HI", stopped abruptly.
PLAY AUDIO 7998.12 kHz CW Morse beacon HI 2018DEC04 1945UTC
Image below of waterfall shows CW beacon HI morse at 7998.12 kHz on 2018DEC04 1945UTC
89
HF Mystery Signals / Re: 2 PPS 0130 UTC 29 Nov 2018
« on: December 03, 2018, 2105 UTC »
Low power frequency hopping ditter.
Highlight of this report: unusual sequence of 4 dits or pips, when logged around 2045UTC.
Then at 2057UTC: returned to continuous dits as usual.
Some of the usual frequencies in between those logged were conspicuously missing, even though the adjacent frequencies were strong.
Good propagation today on the higher frequencies provided reception at 19500 kHz.
Report
2018DEC03 2045UTC
14000.00 kHz CW, UNID, ditter, 4 dits, 2pps, readable, with 9.7 Second repetition of the 4 dit group.
16000.00 kHz CW, UNID, ditter, 4 dits, 2pps, readable, with 9.7 Second repetition of the 4 dit group.
18068.00 kHz CW, UNID, ditter, 4 dits, 2pps, weak readable, with 9.7 Second repetition of the 4 dit group.
19500.00 kHz CW, UNID, ditter, 4 dits, 2pps, weak readable, with 9.7 Second repetition of the 4 dit group.
PLAY AUDIO: The 4 DITS flavor of the 14000 kHz UNID 2pps ditter CW 2018DEC03 2051UTC
Report
2018DEC03 2057UTC
14000.00 kHz CW, UNID, ditter, continuous dits, 2pps, readable
16000.00 kHz CW, UNID, ditter, continuous dits, 2pps, readable
18068.00 kHz CW, UNID, ditter, continuous dits, 2pps, weak readable
19500.00 kHz CW, UNID, ditter, continuous dits, 2pps, weak readable
Time domain image below shows the 4 DITS flavor of the 14000kHz UNID 2pps ditter CW logged on 2018DEC03 2051UTC, with measurement of the 9.7 second repetition for the 4 dit groups.
Highlight of this report: unusual sequence of 4 dits or pips, when logged around 2045UTC.
Then at 2057UTC: returned to continuous dits as usual.
Some of the usual frequencies in between those logged were conspicuously missing, even though the adjacent frequencies were strong.
Good propagation today on the higher frequencies provided reception at 19500 kHz.
Report
2018DEC03 2045UTC
14000.00 kHz CW, UNID, ditter, 4 dits, 2pps, readable, with 9.7 Second repetition of the 4 dit group.
16000.00 kHz CW, UNID, ditter, 4 dits, 2pps, readable, with 9.7 Second repetition of the 4 dit group.
18068.00 kHz CW, UNID, ditter, 4 dits, 2pps, weak readable, with 9.7 Second repetition of the 4 dit group.
19500.00 kHz CW, UNID, ditter, 4 dits, 2pps, weak readable, with 9.7 Second repetition of the 4 dit group.
PLAY AUDIO: The 4 DITS flavor of the 14000 kHz UNID 2pps ditter CW 2018DEC03 2051UTC
Report
2018DEC03 2057UTC
14000.00 kHz CW, UNID, ditter, continuous dits, 2pps, readable
16000.00 kHz CW, UNID, ditter, continuous dits, 2pps, readable
18068.00 kHz CW, UNID, ditter, continuous dits, 2pps, weak readable
19500.00 kHz CW, UNID, ditter, continuous dits, 2pps, weak readable
Time domain image below shows the 4 DITS flavor of the 14000kHz UNID 2pps ditter CW logged on 2018DEC03 2051UTC, with measurement of the 9.7 second repetition for the 4 dit groups.
90
HF Mystery Signals / Re: 2 PPS 0130 UTC 29 Nov 2018
« on: December 03, 2018, 0113 UTC »5010 kHz also.
Yes, logged the low power frequency hopping ditter on 5010 now, with better signal strength. Checked earlier at 5010 kHz, but a carrier interfering signal masked it.
Report
2018DEC03 0112 UTC
5010.00 kHz CW, UNID, ditter, readable, -102 dBm, but with interference from a carrier.
2018DEC03 0350 UTC
3000.00 kHz CW, UNID, ditter, weak readable, -116 dBm, but with interference from a carrier.