Japan Earthquake HF Comms

Hearing Japan Maritime Self-Defense Forces on 6751 kHz in USB mode. Both aircraft and ground stations very loud here in California. One aircraft gave position of 36.59N 140.53E putting them near the tsunami zone. More activity from Japan SDF on 6727, 5690 and 5693 kHz USB all related to earthquake. Japanese SAR traffic has also been logged on 5680 kHz USB.

nickcarr in #wunclub reports 6742 kHz USB is another frequency with station wkg Japanese sounding aircraft and on 6773 kHz USB heard frantic comms with some screaming. Tokyo MWARA traffic has been monitored on 6655 kHz USB. Vambo from #wunclub reports 6640 kHz USB busy with phone patch traffic for airliner diversions.

Here in California this morning, we have activity from Air Force Rescue 212 on 5711 kHz USB wkg Moffett Rescue. They have also been in comms with CAMSPAC on 5696 kHz USB. Activity related to tsunami threat in western USA.

I will post more frequencies as they are found. More Japanese earthquake related HF frequencies can be found on the Milcom Monitoring Post blog and the RadioReference Wiki.

March 17 update: Just logged Coast Guard 1701 up with Sector Honolulu and CAMSPAC Pt Reyes on 5696 kHz USB. Flight departed Barbers Point and en route to Yokota Air Base, Japan. I am also hearing Japanese activity on 4736 kHz USB with both voice and data modes.

March 16 update: I am currently hearing Japanese comms on 9034 kHz USB. The format sounds related to the activity on 6742 kHz.

March 12 update: Reception starting to pick up into Japan. Hearing activity on 5680 and 5708 kHz USB at this moment. (0852Z)

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