Honshu HAM

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Developers needed

Reported Emergency Frequencies

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Japan Amateur Radio League bandplan (English), page 1.
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Japan Amateur Radio League bandplan (English), page 2.
  • Active Emergency Nets
    • 7.030MHz SSB, JA1RL Net Control (JARL Regional Headquarters)
      • Operation mainly at 0600-2000JST (2100-1100UTC) daily. All Radio Amateurs: avoid transmission around 7.030 MHz until further notice for keeping that frequency clear from interference. (March 17, 2011 JARL)
    • 7.043MHz SSB, JR3QHQ Net Control (JARL Osaka Branch Manager)
    • 7.075MHz SSB, JL3YSP in Wakayama
    • 144.10MHz SSB, JA7RL Net Control (Sendai City)
    • 145.5MHz FM, JA7RL Net Control (Sendai City)

Other Reported Frequency Usage

  • 80m
    • 3.525MHz
  • 20m
    • 14.230 MHz
  • 15m
    • 21.230 MHz
  • IARU REGION THREE ACTIVITY
    • 3.6 MHz
    • 7.11 MHz
    • 14.3 MHz
    • 18.16 MHz
    • 21.360 MHz

Official JARL Emergency SIMPLEX Frequencies

HIGH FREQUENCY (HF)

  • 3.525 MHz SSB/narrow modes
  • 7.03 MHz SSB/narrow modes
  • 14.1 MHz SSB/narrow modes
  • 21.2 MHz SSB/narrow modes
  • 28.2 MHz SSB/narrow modes
  • 50.1 MHz SSB/narrow modes
  • 51.0 MHz FM

VERY HIGH FREQUENCY (VHF)

  • 144.1 MHz SSB/narrow modes
  • 145.0 MHz FM CALLING/EMERGENCY
  • 145.5 MHz FM EMERGENCY COMMUNICATION

ULTRA HIGH FREQUENCY (UHF)

  • 430.1 MHz SSB/narrow modes
  • 433.0 MHz FM CALLING/EMERGENCY
  • 433.5 MHz FM EMERGENCY COMMUNICATION
  • 1.294 GHz CALLING/EMERGENCY
  • 1.295 GHz EMERGENCY COMMUNICATION

CENTIMETER & MIRCROWAVE CALLING FREQUENCIES

  • 2.427 GHz
  • 5.76 GHz
  • 10.24 GHz

Packet Radio

Automatic Position Reporting System

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Experimental Radiation Monitoring Network.

Japan Reports

APRS Radiation Monitoring (EXPERIMENTAL)

APRS visualizers:

Internetworking:

Official Emergency Bulletin Board Systems

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PacForms message traffic interface.
  • PacForms auto-formatting message traffic data entry for official emergency services.

Protocol Support

JARL Frequency Band Plans

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Japan Amateur Radio League bandplan, page 1.
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Japan Amateur Radio League bandplan, page 2.

JAPAN 40m Band Plan (Regional High Frequency SIMPLEX)

  • 7.0 - 7.03 CW mode
  • 7.025 - 7.04 Narrow Data modes
  • 7.03 MHz EMERGENCY COMMUNICATIONS
  • 7.03 - 7.1 CW, telephony, image(fax)
  • 7.1 - 7.2 All narrow modes

JAPAN 2m Band (area wide tactical use)

    • 144.3 - 144.4 INTERNATIONAL SPACE STATION WIDEBAND MODES
    • 144.5 - 144.6 VoIP-FM
      • The EchoLink (ham radio over VoIP) link, JA7UDE-L 144.52MHz, Tone 77Hz, is working for emergency traffic at Sendai city.
    • 144.6 - 144.7 FM Data
    • 144.65 – 145.8 FM / All modes
      • EMERGENCY FREQUENCIES
        • 144.1 EMERGENCY / NARROW MODES
        • 145.00MHz EMERGENCY / FM CALLING FREQUENCY
        • 145.5 EMERGENCY COMMUNICATIONS
        • 145.825 INTERNATIONAL SPACE STATION APRS AX.25 DATA
          • International Space Station handling emergency APRS traffic over Japan six times per day on 145.825MHz.
            • Many APRS digipeaters going down due to power outages.
            • Japan APRS stations switch to the ISS frequency 145.825MHz during overhead pass.
            • Other stations worldwide monitor the ISS downlink for emergency traffic from Japan stations.
            • Track ZARYA(International Space Station) on a realtime map.

(No repeater is available on 2m band in Japan.)

JAPAN 70cm Band (area repeaters and local tactical use)

  • 430.1 MHz Emergency SSB mode
  • 430.1 - 430.7 SSB telephony and image
  • 431.0 - 431.4 FM data
  • 430.70 – 431.00 VoIP (FM)
  • 431.40 - 431.90 FM Simplex
  • 432.10 – 434.00 FM Simplex
  • 433.00 MHz CALLING/EMERGENCY
  • 433.5 EMERGENCY COMMUNICATION
  • 434.00 - 435.00 FM Repeaters
  • 438 - 439 MHz All modes SIMPLEX
  • 439.00 – 440.00 FM Repeaters
  • The FM repeater in Iwaki city, 439.46MHz (Shift -5MHz and Tone 88.5Hz) is still working.
  • To use a repeater, verify the frequency offset and private-line tone in use.

Echolink (Voice over IP ham radio)

Node 279303 Net-Nagasaki Conference

  • Conference links
    • ALLJAPAN Conference Node 255803
  • RF links
    • JA7UDE-L in Sendai on 144.520 MHz PL=77Hz
    • JR6NEN-L in Nagasaki 144.54 MHz
    • JO3VSW-L in Kyoto 430.86 MHz PL=123Hz
    • JR7GYV-L in Sasaki 430.76 MHz PL=67
    • JK1JXY-L in Hitachi 430.78 MHz
    • JL4QCB-L in Fukuyama, unspecified frequency
    • JN1WGL-L in Iwaki City, unspecified frequency
  • Repeater Links
    • JN1WGL-R in Kashima City

Node 320378 APRS-JP Conference

  • Conference links
    • BOUSAI Emergency Comms Node 99080
  • RF Links
    • JE1ZPD-L 430.80 MHz
    • JA6HOR-L in Oita 430.76 MHz PL=77Hz
    • JQ1YUX-L in Tokyo 430.86 MHz PL=100Hz
    • JH6RVU-L 430.86 MHz PL=100Hz
    • JG6YAF-L in NS 431.0 MHz PL=100Hz
    • JA4FHV-L 3302 & 1294.76
    • JA6IJW-L in FK 431.0 PL=100Hz
    • JE0JMZ-L 430.84 MHz DCS=073
    • JL1QXE-L in Mito 438.12 MHz PL=88.5Hz
    • JG6YDE-L in KitaQ 430.82 MHz PL=100Hz
    • JG6YDJ in KM 430.96 MHz PL=100Hz
    • JO6EFL-L in SOEDA 431.0 MHz PL=100Hz
    • JA6VBY-L 430.88 MHz PL=100Hz
    • JR6CUM-L in Buongo-ono, Oita 144.52 MHz
    • JE6WWZ-L in O/Kurume 430.92 MHz
    • JG6YCB-L in Tagawa 438.56 MHz PL=100Hz
    • JO1ZFF-L unspecified frequency.

International Amateur Radio Union

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IARU regions follow International Telecommunication Union boundaries.

IARU Regional Websites

  • Region One comprises Europe, Africa, the Middle East west of the Persian Gulf including Iraq, the former Soviet Union and Mongolia.
  • Region Two covers the Americas, Greenland and some of the eastern Pacific Islands.
  • Region Three contains most of non-former-Soviet-Union Asia including Japan, east of and including Iran, and most of Oceania.

IARU Region 3 "Centre of Emergency" frequencies are;

  • 3600 kHz
  • 7110 kHz
  • 14300 kHz
  • 18160 kHz
  • 21360 kHz

IARU-JARL information:

  • Hams follow established International High Frequency Emergency Operating Procedures
  • A foreign ham may operate on a Japanese station within Japan as a guest with the privileges of the station operator.
  • Foreign hams usually contact JARL to establish independent station operations within Japan on the 40m and 70cm band.
  • JARL (JAPAN AMATEUR RADIO LEAGUE) is a member society of the INTERNATIONAL AMATEUR RADIO UNION, Region 3.

See Also

External Sites and Sources

Amateur Radio

Other shortwave or broadcast services

Japanese Network Simulcast