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IARU REGION 1 HF BAND PLAN – Effective 29th March 2009 |
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FREQUENCY (kHz)
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MAX BANDWIDTH (Hz)
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PREFERRED MODE AND USAGE
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135.7 – 137.8
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200
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CW, QRSS and narrow band digital modes
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RR 5.67A
Stations in the amateur service using frequencies in the band 135.7-137.8 kHz shall not exceed a maximum radiated power of 1 W (e.i.r.p.) and shall not cause harmful interference to stations of the radionavigation service operating in countries listed in No. 5.67. (WRC-07) (Cavtat 2008) |
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RR 5.67B
The use of the band 135.7-137.8 kHz in Algeria, Egypt, Iran (Islamic Republic of), Iraq, Libyan Arab Jamahiriya, Lebanon, Syrian Arab Republic, Sudan and Tunisia is limited to the fixed and maritime mobile services. The amateur service shall not be used in the above-mentioned countries in the band 135.7-137.8 kHz, and this should be taken into account by the countries authorising such use. (WRC-07)(Cavtat 2008) |
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1.8 MHz Band:
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1810 - 1838
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200
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CW, 1836 kHz - QRP Centre of Activity
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1838 - 1840
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500
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Narrow band modes
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1840 - 1843
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2700
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All modes – digimodes, (*)
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1843 - 2000
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2700
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All modes, (*)
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Radio Amateurs in countries that have a
SSB allocation ONLY below 1840 kHz, may continue to use it, but the National Societies in those countries are requested totake all necessary steps with their licence administrations to adjust the phone allocations in accordance with the Region 1 Bandplan. (Davos 2005) |
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3.5 MHz Band:
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3500 - 3510
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200
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CW, priority for intercontinental operation
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3510 - 3560
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200
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CW, contest preferred, 3555 kHz - QRS Centre of Activity
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3560 - 3580
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200
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CW, 3560 kHz - QRP Centre of Activity
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3580 - 3590
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500
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Narrow band modes - digimodes
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3590 - 3600
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500
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Narrow band modes - digimodes, automatically controlled data stations (unattended)
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3600 - 3620
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2700
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All modes - digimodes, automatically controlled data station (unattended), (*)
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3600 - 3650
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2700
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All modes, 3630 kHz - Digital Voice Centre of Activity, SSB contest preferred, (*)
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3650 - 3700
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2700
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All modes, 3690 kHz - SSB QRP Centre of Activity
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3700 - 3800
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2700
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All modes, SSB contest preferred,
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3735 kHz - Image Centre of Activity
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3760 kHz - Region 1 Emergency Centre of Activity
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3775 - 3800
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2700
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All modes, priority for intercontinental operation
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Intercontinental operations should be given priority in the segments 3500-3510 kHz and 3775-3800 kHz.
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Where no DX traffic is involved, the contest segments should not include 3500-3510 kHz or 3775-3800 kHz. Member societies will be permitted to set other (lower) limits for national contests (within these limits).
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3510-3600 kHz may be used for unmanned ARDF beacons (CW ) (Davos 2005)
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Member societies should approach their national telecommunication authorities and ask them not to allocate frequencies to other than amateur stations in the band segment that IARU has assigned to intercontinental long distance traffic.
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