46
North American Shortwave Pirate / Re: Radio Fusion Radio 6925 USB 2145 UTC 13 Dec 2015
« on: December 13, 2015, 2148 UTC »
S5 into central Florida
Shortwave Pirate Radio In North America And Around The World, And Other Signals That Go Bump In The Night
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47
Other / Three carriers: 6993.015 KHz +/- 10 Hz Dec 13 2014z i
« on: December 13, 2015, 2056 UTC »
I am hearing 3 strong carriers on 6993 KHz:
6993.017 KHz, another up ~10 Hz, and a third down ~10 Hz from the 6993.017 KHz "center" carrier. It sounds as if is some faint modulation of two of the three carriers, perhaps a fraction of a Hz.
Very strong in central Florida: S8-9. I've not heard this before.
6993.017 KHz, another up ~10 Hz, and a third down ~10 Hz from the 6993.017 KHz "center" carrier. It sounds as if is some faint modulation of two of the three carriers, perhaps a fraction of a Hz.
Very strong in central Florida: S8-9. I've not heard this before.
48
Utility / DEA HF comms: still active?
« on: November 07, 2015, 1247 UTC »
I used to hear lots of SSB HF communication from the Drug Enforcement Agency in the late 1980s and early 1990s, usually ground-to-air drug interdiction traffic.
FORMAT was one callsign I heard often which I think was a ground-based operation center as it was always a consistent copy and would be frequently in contact with what sounded like aircraft flying in the Caribbean or around central America tracking boats loaded with cocaine (my guess).
I've not come across any in a long time and the reports of intercepts seem absent.
Where'd they go? What frequencies are likely to be active, if any?
Dag
FORMAT was one callsign I heard often which I think was a ground-based operation center as it was always a consistent copy and would be frequently in contact with what sounded like aircraft flying in the Caribbean or around central America tracking boats loaded with cocaine (my guess).
I've not come across any in a long time and the reports of intercepts seem absent.
Where'd they go? What frequencies are likely to be active, if any?
Dag
49
HF Beacons / Re: New HiFer "SPT" Beacon on 13558KHz
« on: November 07, 2015, 1210 UTC »
13558 KHz is a sewer of noise in central Florida with the same chirps as William described. The hash and chirps are 24 hr/day here. SPT would be in the clear here if you could move SPT up above 13660 or below 13557 KHz.
Dag
Dag
50
North American Shortwave Pirate / Re: 6975 X-FM Shortwave 0033 UTC 11/1/2015
« on: November 01, 2015, 0147 UTC »
S9 signal into central Florida with terrific playlist.
Dag
Dag
51
HF Mystery Signals / Re: Mystery signal question
« on: October 13, 2015, 2351 UTC »
Oh my! I'm so glad to see this thread -- I've heard these signals for decades as well wondering what they are.
The analysis and speculation is very interesting and alas, I can shed no light on these mysterious signals.
I am listening to a repetitive sweeper on 14414.50 KHz. It "sweeps" about every 7 seconds for about 9 repetitions, but now it's fading a bit.
Dag
The analysis and speculation is very interesting and alas, I can shed no light on these mysterious signals.
I am listening to a repetitive sweeper on 14414.50 KHz. It "sweeps" about every 7 seconds for about 9 repetitions, but now it's fading a bit.
Dag
52
Other / Pips 8912 KHz 1736 UTC 03 OCT 2015
« on: October 03, 2015, 1738 UTC »
Pips on 8912 KHz USB about every 10 seconds.
53
Other / Pips 10237.8 KHz, 26 SEP 2015
« on: September 26, 2015, 1102 UTC »
While listening and watching for "common and precious" beacon on 10237 KHz, I heard an occasional pip on 26 Sept 2015 before sunrise east coast USA.
One pip each 10 seconds 10237.86 Khz heard nearly consistently over about 45 minutes.
I did not copy the "Common and precious" CW beacon.
The large "<" tip points to each pip.
Dag
One pip each 10 seconds 10237.86 Khz heard nearly consistently over about 45 minutes.
I did not copy the "Common and precious" CW beacon.
The large "<" tip points to each pip.
Dag
54
Other / Re: Pulsing Buzzer on 7487
« on: August 29, 2015, 1108 UTC »
See this post, Paul. http://www.hfunderground.com/board/index.php/topic,20750.0.html
It appears you're hearing the same as I did.
Will "normalized" relations with Cuba eliminate this jamming?
Methinks not.
Dag
It appears you're hearing the same as I did.
Will "normalized" relations with Cuba eliminate this jamming?
Methinks not.
Dag
55
HF Beacons / Sawtooth hifer beacon 13554.40 KHz
« on: June 27, 2015, 2321 UTC »
I've constructed a sawtooth hifer beacon on a dial frequency of USB 13554.40 KHz running a few milliwatts into a homebrew multiband ladderline-fed-MFJ-tuner tuned zig-zaggin' attic dipole up about 15 feet/3 meters. The signal should show somewhere between 725 Hz and 750 Hz on the spectrum display at the aforementioned dial frequency: the drift is due to ambient air temperature changes.
The circuit is an NE555 in astable mode and an EPSON SG 8002 oscillator and some old junk box parts on a prototype breadboard with a lot of alligator clips.
The calculated time constant of the NE555 with resistor/capacitor that I'm using show a completed cycle each 343.78 seconds or 5 min 43 seconds, but I suspect the capacitors/resistors I have are not of tight tolerance. Hence the time it takes to complete one cycle may be off a little, but it looks pretty much in agreement on my spectrum display.
The frequency shift of the sawtooth is about 3 Hertz and with the narrow frequency shift and slow oscillation of the sawtooth, it takes a slow waterfall to see it.
It runs 24 hours/day using a 7 volt wall wart.
I would appreciate some reports and screen shots to test the consistency of copy before I rebuild it Manhattan-style on copper clad pc board in an insulated enclosure to minimize drift.
Should I move the frequency? Are there other ISM signals on the same frequency that may interfere? Codar?
I intend to construct a new dipole or vertical for this signal, and possibly get it solar powered with a night-time battery voltage source if it proves relatively copyable.
This beacon looks nearly like a straight line on a spectrum display of 3 seconds/dot and 10 seconds/dot. It clearly shows it's sawtooth character at 30 seconds/dot and 60 seconds/dot.
Thank you.
Dag
The circuit is an NE555 in astable mode and an EPSON SG 8002 oscillator and some old junk box parts on a prototype breadboard with a lot of alligator clips.
The calculated time constant of the NE555 with resistor/capacitor that I'm using show a completed cycle each 343.78 seconds or 5 min 43 seconds, but I suspect the capacitors/resistors I have are not of tight tolerance. Hence the time it takes to complete one cycle may be off a little, but it looks pretty much in agreement on my spectrum display.
The frequency shift of the sawtooth is about 3 Hertz and with the narrow frequency shift and slow oscillation of the sawtooth, it takes a slow waterfall to see it.
It runs 24 hours/day using a 7 volt wall wart.
I would appreciate some reports and screen shots to test the consistency of copy before I rebuild it Manhattan-style on copper clad pc board in an insulated enclosure to minimize drift.
Should I move the frequency? Are there other ISM signals on the same frequency that may interfere? Codar?
I intend to construct a new dipole or vertical for this signal, and possibly get it solar powered with a night-time battery voltage source if it proves relatively copyable.
This beacon looks nearly like a straight line on a spectrum display of 3 seconds/dot and 10 seconds/dot. It clearly shows it's sawtooth character at 30 seconds/dot and 60 seconds/dot.
Thank you.
Dag
56
HF Beacons / SIW beacon in slant CW mode 13554.71 kHz APR 18 2015
« on: April 18, 2015, 2245 UTC »
I am seeing SIW in slant mode CW (dits show ~ 5 Hz upward deflection, dahs show ~ 5 Hz downward deflection) as seen with ARGO software using 10 dots/sec setting on 13554.71 kHz USB dial frequency.
50 Hz above SIW is EH beacon best seen @ 3 dots/sec setting.
Dag
50 Hz above SIW is EH beacon best seen @ 3 dots/sec setting.
Dag
58
HF Beacons / Re: V1RGO/B 13561.50 kHz CW
« on: April 12, 2015, 1418 UTC »
V1RGO/B now readable by ear at 1400z RST=339, but I could see it on the waterfall at 1000z
59
HF Beacons / Re: V1RGO/B 13561.50 kHz CW
« on: April 11, 2015, 1449 UTC »
I found this mention of the V1RGO/B beacon from what appears to be a reprint of Glenn Hauser's column: see the entry seen as the third full paragraph from the end, labeled as " UNIDENTIFIED. 13562 ".
http://bclnews.blogspot.com/2015/04/glenn-hauser-logs-april-3-2015.html
http://bclnews.blogspot.com/2015/04/glenn-hauser-logs-april-3-2015.html
60
HF Beacons / V1RGO/B 13561.50 kHz CW
« on: April 11, 2015, 0235 UTC »
I easily copied "V1RGO/B" on 13561.50 kHz, CW ~ 8 wpm repeating it's ID until fadeout at 0232 UTC.