Monday, March 14, 2011


I received the following two messages via my amateur radio club:
The following was copied from the ARRL_EMCOMM twitter page (
"The following frequencies are being used for emergency traffic in Japan 3.525, 7.030, 7.043, 7.075 MHz."
Please do not operate on or near these frequencies.
The following was also sent by the ARRL:
FYI for those active on HF...

-------- Original Message --------
Date: Sun, 13 Mar 2011 14:02:55 -0400 (EDT)
From: ARRL Members Only Web

following information received from Ken Yamamoto JA1CJP of JARL
these frequencies are known to be in use for the response to the Japanese earthquake.

7043 kHz SSB controled by JR3QHQ the Osaka branch manager of JARL He is gathering incident information on radio and forwarding this information onto the internet.

7075 kHz SSB is operated by JL3YSP in Wakayama occasionally.

7030 kHz which is the JARL emergency communication frequency in their bandplan is in use by JA7RL (JARL regional HQ station).

The last frequency is particularly QRP relevant. There are obviously ropagation factors which would limit their range but would all amateurs please make every effort to avoid interfering with emergency communications on these frequencies.

ARRL Western Washington Section
Section Manager: James D Pace, K7CEX

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