HFU HF Underground
Loggings => North American Shortwave Pirate => Topic started by: Skipmuck on November 24, 2018, 0151 UTC
-
0151 UTC Music right at the noise floor
0152 UTC YL but nada on the copy
0153 UTC Music again but way down low....
0158 UTC "Earl Arrival"-Ragan Whiteside (Signal is up to S3 now)
0207 UTC ID by YL...."You're listening to Mix International"
Thanks for the tunes Mix!
-
S3 into Bama but the very low noise floor here tonight allowing some really good copy. Sounding very nice. Thanks for the show!
-
0159- Not breaking the noise here- do have it on CAL SDR S3-S5 sounds like Mix Radio
-
Tuned in at 0204utc, good signal, I hear smooth jazz music, dance music, signal weakened by 0245utc.
-
0214 Just tuning in, signal is unfortunately weak here.
0250 still hearing audio below the noise. It was SIO 111 at best over the course of the past 34 minutes.
-
Peaking at S9 with slight QRN
0214 - MX instrumental
-
S7 @ 0215 with"Right Turn Ahead" Ben Tankard
(https://i.imgur.com/g7BjrlI.png)
-
0226 - Playing - Eternell
S7
0231 - Euge Groove
S8 sounds really good.
0235 -id
0235 - sucker punch - Sigrid
0245 - id into Moods
Still sounding good here.
-
Signal is just barely making it above the noise floor. Sometimes the music makes a bit of an appearance but never for long. Great to see you are on the air tonight. I'm hearing a bit at the moment.
-
Report
2018NOV24 0330UTC
4125kHz USB, music, "Mix Radio International", strong with fading, no interference. Off air at 0332 UTC?
PLAY AUDIO 4125kHz USB Mix Radio International recorded in stereo with IQ bandwidth -500Hz LSB and +6kHz USB with +6dB bass boost (http://hfpack.com/members/exo/4125kHz_Mix_Radio_International_IQ_6kHzUSB_2018NOV24_0330UTC.mp3)
-
Probably the reason the frequency was so interference free, is that it was on the international maritime distress frequency 4125 kHz (https://en.wikipedia.org/wiki/International_distress_frequency#Maritime_Mobile_Service_frequencies).
Probably best to avoid that in the future, Mix Radio International.
- Effective Jan 01, 2005 U.S. Coast Guard long range communications stations NMF, NMN, NMA, NMG, NMC, NMO, NOJ and NRV changed their single sideband voice radio guard to the following simplex frequencies: 4125, 6215, 8291, and 12290 kHz. These frequencies are intended for initial voice contact and distress alerts and working only.
There was a captive audience: the Coast Guard monitors that freq 24/7 (https://www.navcen.uscg.gov/?pageName=cgcommsCall).
<sarcasm> To step in bigger doodoo, try 5000 kHz, 3330 kHz, or maybe 11175. </sarcasm> :)
-
Probably the reason the frequency was so interference free, is that it was on the international maritime distress frequency 4125 kHz (https://en.wikipedia.org/wiki/International_distress_frequency#Maritime_Mobile_Service_frequencies).
Probably best to avoid that in the future, Mix Radio International.
- Effective Jan 01, 2005 U.S. Coast Guard long range communications stations NMF, NMN, NMA, NMG, NMC, NMO, NOJ and NRV changed their single sideband voice radio guard to the following simplex frequencies: 4125, 6215, 8291, and 12290 kHz. These frequencies are intended for initial voice contact and distress alerts and working only.
There was a captive audience: the Coast Guard monitors that freq 24/7.
<sarcasm> To step in bigger doodoo, try 5000 kHz, 3330 kHz, or maybe 11175. </sarcasm> :)
do you think that could explain all the non english chatter on frequency after mix went off air ;-)
-
SDR recording catch:
0040 4134 USB, transmitting what seems like noise at different bandwidths. Perhaps calibrating equipment? Strong signal
0042 Off
0056 4131 AM, carrier but no audio.
0057 Off
0058 4131 USB with the noise again.
0101 Off
0102 On
0104 Off
0109 4125 USB more noise
0114 Off
0117 Music started, solid SIO 555. Maybe closer to 4125.05 ?
0137 Stevie Wonder "Superstition" Thank you 8)
0152 Shout out to me, back to the music
0204 Starting to fade a little now, but still good
-
Effective Jan 01, 2005 U.S. Coast Guard long range communications stations NMF, NMN, NMA, NMG, NMC, NMO, NOJ and NRV changed their single sideband voice radio guard to the following simplex frequencies: 4125, 6215, 8291, and 12290 kHz. These frequencies are intended for initial voice contact and distress alerts and working only.
FWIW, it should also be noted that I hear plenty of 'other' activity on 6215 +/- where it would seemingly cause interference: peskies, utes, whatever.
-
Effective Jan 01, 2005 U.S. Coast Guard long range communications stations NMF, NMN, NMA, NMG, NMC, NMO, NOJ and NRV changed their single sideband voice radio guard to the following simplex frequencies: 4125, 6215, 8291, and 12290 kHz. These frequencies are intended for initial voice contact and distress alerts and working only.
FWIW, it should also be noted that I hear plenty of 'other' activity on 6215 +/- where it would seemingly cause interference: peskies, utes, whatever.
Peskies (fishing vessels) belong there.
6215 is maritime ITU channel 606.
(Calling; distress & safety working on 6215 kHz simplex)
- "to pull the beard of the lion in his den"
-
Regardless of the fact that pescadores use 6215 kHz...using a distress/calling frequency for pirate broadcasting is an all-around bad idea. The US Coast Guard has extensive DF capability and has gone after people who caused interference on, intentionally or not, distress frequencies. Sure there are fishing fleets in South America chatting away on 6215 kHz when they should be switching to another frequency after initial contact. Maritime stations using 6215 kHz is not the same as a land-based station broadcasting a high power signal on 4125 kHz. You can bet the USCG was listening.
In the future, I strongly recommend avoiding safety of life frequencies like 4125 kHz.
-
It does seem like a frequency to avoid. Several ops in the past were busted presumably for interfering with important frequencies. Or in the case of Lad from Voice of the Night, he apparently QRM'd a Havana to Moscow CW net that some folks stateside were trying to monitor. The guys in Ft. Meade most likely have the FCC DF department on speed dial, if you know what I mean.
-
If it was done once for a short time I doubt that it could be a problem. If it is done repeatedly on that frequency or another one just as important that would be a problem. Since the band propergation was so long going into Europe going thousands of miles DF ing would be difficult for one transmisión.
-
If it was done once for a short time I doubt that it could be a problem. If it is done repeatedly on that frequency or another one just as important that would be a problem. Since the band propergation was so long going into Europe going thousands of miles DF ing would be difficult for one transmisión.
DFing on HF is near instantaneous these days, with the right gear.
Many have tried out the TDoA kiwi SDR network, which takes a few minutes.
Just think how little time it would take with a network of DF experts and 3 elephant cages :)
QRMing the guys who are well known for their helos and DFers, is unwise.
Purely on principle, the Maritime distress channels, Search And Rescue channels, and Air Traffic Control channels should be considered sacred ground taboo.
-
If it was done once for a short time I doubt that it could be a problem. If it is done repeatedly on that frequency or another one just as important that would be a problem. Since the band propergation was so long going into Europe going thousands of miles DF ing would be difficult for one transmisión.
DFing on HF is near instantaneous these days, with the right gear.
Many have tried out the TDoA kiwi SDR network, which takes a few minutes.
Just think how little time it would take with a network of DF experts and 3 elephant cages :)
QRMing the guys who are well known for their helos and DFers, is unwise.
Purely on principle, the Maritime distress channels, Search And Rescue channels, and Air Traffic Control channels should be considered sacred ground taboo.
Yes we have tried out Kiwi SDR including myself and others I have talk to off this form. It was quite interesting on how for off it shows in location with the interaction of HF propagation not like line of site FM broadcasts that have no sky Propagation going on. Even though there is better stuff out there. And again if a station gets enough of there attention I sure eventually in time they will be found. Just like all the pirate FM stations being shutdown across the country because they are considered a high priority. 8)
-
It does seem like a frequency to avoid. Several ops in the past were busted presumably for interfering with important frequencies. Or in the case of Lad from Voice of the Night, he apparently QRM'd a Havana to Moscow CW net that some folks stateside were trying to monitor. The guys in Ft. Meade most likely have the FCC DF department on speed dial, if you know what I mean.
Lol we should have a guide for privateering of the airwaves to help budding privateers and corsairs avoid such gross malfeasance.