I have been hearing Japanese comms on 5690 USB lately. Last night I monitored what sounded like JJN6 wkg 1BM giving weather conditions for Nagasaki. I have also noticed that the stations occasionally exchange what sounds like RTTY data in between voice comms. The frequency can be heard from California most nights between 0800z and 1200z.
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Nadi ACC on 5643 kHz with a fantastic signal this morning. 5643 is a MWARA South Pacific (SP-6) frequency. Other MWARA frequencies used by Nadi include: 3467, 8867, 13261 and 17904 kHz. From California the best time to monitor is during the night and early morning hours. The MWARA SP-6 group is also used by San Francisco OACC, Brisbane ACC, Auckland OACC and Tahiti OACC.
Tags: aviation
Token from the RadioReference forums reported an air intercept exercise on 11190 kHz USB. I tuned the radio and sure enough there it was. I was not able to hear all parties, but had a good signal from a unit identifying as Tango. He was in comms w/ Romeo Whiskey. Other folks around the western USA also reported hearing this net.
Here is a brief intercept of some traffic monitored.
Tags: military
As Tropical Cyclone Yasi makes landfall in Australia, the coverage from ABC Queensland has been carried live via Radio Australia’s SWL station. Here is an audio clip of the emergency information broadcast monitored on 9580 kHz.
Nice reception into Africa this evening on 5565 kHz from Luanda ACC. This is a MWARA frequency for the South Atlantic Ocean (SAT-2). Attached is an audio clip of Luanda wkg KLM 598, a Boeing 777-200 en route from Cape Town to Amsterdam. It’s always a thrill to receive African stations here in California.
Tags: aviation
Mexican Air Force – A fellow from the RadioReference forums reports a clear voice Mexican military HF net on 8146 kHz. Some of the callsigns include: Gamma 10, Gamma 20, Alpha Fox Alpha, Lima India Lima and other stations. Based on traffic received, the aircraft are in the northern areas of Mexico. I decided to tune the frequency and caught some radio traffic loud and clear from my location.
Mexican Navy – The other night I happened to stumble across formal sounding traffic on 5740 and 5745 kHz in USB clear voice. This appears to be the Mexican Navy based on callsigns monitored. One of the stations identifies as Papa Oscar 152, which according to Wikipedia, is the ARM Sonora. PO-152 is a Durango class oceanic patrol vessel in the Mexican Navy with a main 4 inch turret and a helicopter landing pad and is primarily used to fight drug cartels.
Tags: mexico
Excellent signals yesterday and today from two US Coast Guard cutters working off the California coast. USCGC Boutwell and USCGC Aspen both active in ANDVT and clear voice on 5693 kHz, also known as SVN Alpha. Not too often do we have clear comms on this frequency, so this is a real treat!
Tags: coast guard, maritime
For anyone listening to the HFGCS frequencies yesterday, they probably noticed the increased amount of EAM’s (Emergency Action Messages) and other traffic. These comms were related to the U.S. Strategic Command nuclear command & control exercise called Global Thunder. To learn more about this exercise, read Hooligan’s informative post on the RadioReference forums.
For those that missed it, here is a recording of the EAM activity.
Tags: military
Ever tuned the HF aeronautical bands and stumbled across automated voice broadcasting weather info for various cities? If so, then you most likely heard a VOLMET station. VOLMET, or meteorological information for aircraft in flight, is the term applied to a worldwide network of radio stations that broadcast TAF, SIGMET and METAR reports on shortwave frequencies. In addition to helping pilots find weather at airports, these stations are a great resource for SWL listeners to check propagation conditions to various parts of the world.
Posted below is my collection of audio clips for Volmet stations that have been monitored at my location in Southern California.
5505 kHz – Shannon Volmet
5673 kHz – Guangzhou Volmet
6604 kHz – New York Volmet
6676 kHz – Australian Volmet
6676 kHz – Bangkok Volmet
6676 kHz – Singapore Volmet
6679 kHz – Auckland Volmet
6679 kHz – Hong Kong Volmet
6679 kHz – Honolulu Volmet
6679 kHz – Tokyo Volmet
6754 kHz – Trenton Military Volmet
10051 kHz – Gander Volmet
See the DX Info Centre for a complete list of frequencies and schedules for VOLMET stations.