HF

The article "IARU Region 1 bandplan - why?" describes the philosophy of the IARU Region 1 bandplan and gives some explanations how to read it.
Access full article in (English version) or (German - Deutsche Version). 
 
 
 
 
                                 
 

FREQUENCY (kHz)

MAX BANDWIDTH (Hz)

   PREFERRED MODE AND USAGE

 

135.7 – 137.8

200

CW, QRSS and narrow band digital modes

   

 

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)

   

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)

1.8 MHz Band:

    1810 - 1838

200

CW, 1836 kHz   - QRP Centre of Activity

1838 - 1840

500

Narrow band modes

1840 - 1843

2700

All modes – digimodes, (*)

1843 - 2000

2700

All modes, (*)

   

 

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 to take all necessary steps with their licence administrations to adjust the phone allocations in accordance with the Region 1 Bandplan. (Davos 2005)

3.5 MHz Band:

3500 - 3510

200

CW, priority for intercontinental operation

3510 - 3560

200

CW, contest preferred, 3555 kHz - QRS Centre of Activity

3560 - 3580

200

CW, 3560 kHz - QRP Centre of Activity

3580 - 3590

500

Narrow band modes - digimodes

3590 - 3600

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

3600 - 3620

2700

All modes - digimodes, automatically controlled data station (unattended), (*)

3600 - 3650

2700

All modes, 3630 kHz - Digital Voice Centre of Activity, SSB contest preferred, (*)

3650 - 3700

2700

All modes, 3690 kHz - SSB QRP Centre of Activity

3700 - 3800

2700

All modes, SSB contest preferred,

3735 kHz - Image Centre of Activity                    

3760 kHz - Region 1 Emergency Centre of Activity

3775 - 3800

2700

All modes, priority for intercontinental operation

   

 

 

Intercontinental operations should be given priority in the segments 3500-3510 kHz and 3775-3800 kHz.

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).

3510-3600 kHz may be used for unmanned ARDF beacons (CW ) (Davos 2005)

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.

 

 

 

 

 

7 MHz Band: 

7000 - 7040

200

CW, 7030 kHz - QRP Centre of Activity

 

7040 - 7047

500

Narrow band modes - digimodes

 

7047 - 7050

500

Narrow band modes – digimodes, automatically controlled data stations (unattended)

 

7050 - 7053

2700

All modes - digimodes, automatically controlled data stations (unattended) (*)

 

7053 - 7060

2700

All modes - digimodes

 

7060 - 7100

2700

All modes,   SSB contest preferred

7070 kHz - Digital Voice Centre of Activity

7090 kHz - SSB QRP Centre of Activity

 

7100 - 7130

2700

All modes, 7110 kHz – Region 1 Emergency Centre of Activity

 

7130 - 7200

2700

All modes, SSB contest preferred, 7165 kHz - Image Centre of Activity

 

7175 - 7200

2700

All modes, priority for intercontinental operation

 

 

  

 

10 MHz:

10100 - 10140

200

CW,   10116 kHz - QRP Centre of Activity

 

10140 - 10150

500

Narrow band modes – digimodes

 

 

       
 

SSB may be used during emergencies involving the immediate safety of life and property and only by stations actually involved in the handling of emergency traffic.

The band segment 10120 kHz to 10140 kHz may be used for SSB transmissions in the area of Africa south of the equator during local daylight hours.

News bulletins on any mode should not be transmitted on the 10 MHz band.

 
 
   

 

 

 

14 MHz Band:

14000 - 14060

200

CW, contest preferred, 14055 kHz - QRS Centre of Activity

 

14060 - 14070

200

CW, 14060 kHz - QRP Centre of Activity

 

14070 - 14089

500

Narrow band modes - digimodes

 

14089 - 14099

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

 

14099 - 14101

 

IBP, exclusively for beacons

 

14101 - 14112

2700

All modes - digimodes, automatically controlled data stations (unattended)

 

14112 - 14125

2700

All modes

 

14125 - 14300

2700

All modes, SSB contest preferred,

 

14130 kHz - Digital Voice Centre of Activity

 

14195 kHz ± 5 kHz - Priority for Dxpeditions

 

14230 kHz - Image Centre of Activity

 

14285 kHz - SSB QRP Centre of Activity

 

14300 - 14350

2700

All modes, 14300 kHz - Global Emergency centre of activity

 
 

  

     

18 MHz Band:

18068 - 18095

200

CW, 18086 kHz - QRP Centre of Activity

 

18095 - 18105

500

Narrow band modes - digimodes

 

18105 - 18109

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

 

18109 - 18111

 

IBP, exclusively for beacons

 

18111 - 18120

2700

All modes - digimodes, automatically controlled data stations (unattended)

 

18120 - 18168

2700

All modes,

 

18130 kHz - SSB QRP Centre of Activity

 

18150 kHz - Digital Voice Centre of Activity

 

18160 kHz - Global Emergency Centre of Activity

 
                 

 

                         21 MHz Band:

 

21000 - 21070

200

CW, 21055 kHz - QRS Centre of Activity

       21060 kHz - QRP Centre of Activity

21070 - 21090

500

Narrow band modes - digimodes

21090 - 21110

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

21110 - 21120

2700

All modes (excluding SSB) - digimodes, automatically controlled data stations (unattended

21120 - 21149

500

Narrow band modes

21149 - 21151

 

IBP, exclusively for beacons

21151 - 21450

2700

All modes, 21180 kHz - Digital Voice Centre of Activity

21285 kHz - SSB QRP Centre of Activity

21340 kHz - Image Centre of Activity

21360 kHz - Global Emergency Centre of Activity

 

  

   

24 MHz Band:

24890 - 24915

200

CW, 24906 kHz - QRP centre of activity

24915 - 24925

500

Narrow band modes - digimodes

24925 - 24929

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

24929 - 24931

 

IBP, exclusively for beacons

24931 - 24940

2700

All modes - digimodes, automatically controlled data stations (unattended)

24940 - 24990

2700

All modes, 24960 kHz - Digital Voice Centre of Activity

 

  

 

 

28 MHz Band:

28000 - 28070

200

CW, 28055 kHz - QRS Centre of Activity

         28060 kHz - QRP Centre of Activity

28070 - 28120

500

Narrow band modes - digimodes

28120 - 28150

500

Narrow band modes - digimodes, automatically controlled data stations (unattended)

28150 - 28190

500

Narrow band modes

28190 - 28199

 

IBP, regional time shared beacons

28199 - 28201

 

IBP, worldwide time shared beacons

28201 - 28225

 

IBP, continuous duty beacons

28225 - 28300

2700

All modes - beacons

  28300 - 28320

2700

All modes - digimodes, automatically controlled data stations (unattended)

28320 - 29000

2700

All modes,

28330 kHz - Digital Voice Centre of Activity

28360 kHz - SSB QRP Centre of Activity

28680 kHz - Image Centre of Activity

  29000 - 29100

29100 - 29200

29200 - 29300

6000

6000

6000

All modes

All modes - FM simplex - 10 kHz channels

All modes - digimodes, automatically controlled data stations (unattended)

29300 - 29510

6000

Satellite- uplink & downlink

29510 – 29520

 

Guard channel

29520 – 29590

6000

All modes - FM repeater input (RH1 – RH8)

29600

6000

All modes - FM calling channel

  29610

6000

All modes - FM simplex repeater (parrot - input and output)

29620 - 29700

6000

All modes - FM repeater outputs (RH1 – RH8)

     Member societies should advise operators to transmit on frequencies between 29.3 and 29.51 MHz only for amateur satellite uplinks.

     Terrestrial communication should not take place in that segment to avoid interference to amateur radio satellite downlinks. 

     Preferred NBFM operating frequencies on each 10 kHz from 29.110 to 29.290 MHz inclusive should be used.

     A deviation of ±2.5 kHz being used with 2.5 kHz as maximum modulation frequency.

 

DEFINITIONS

All modes                   CW, SSB and those modes listed as Centres of Activity, plus AM (Consideration should be given to adjacent channel users).

Image modes              Any analogue or digital image modes within the appropriate bandwidth, for example SSTV and FAX.

Narrow band modes   All modes using up to 500 Hz bandwidth, including CW, RTTY, PSK etc.

Digimodes                  Any digital mode used within the appropriate bandwidth, for example RTTY, PSK, MT63 etc.

(*)                             Lowest dial setting for LSB Voice mode: 1843, 3603 and 7053 kHz

    NOTES

Amplitude modulation (AM) may be used in the telephony sub-bands providing consideration is given to adjacent channel users. (NRRL Davos 05).

CW QSOs are accepted across all bands, except within beacon segments. (Recommendation DV05_C4_Rec_13)

The frequencies in the band plan are understood as “transmitted frequencies” (not those of the suppressed carrier!)

 

Sideband Usage        Below 10MHz use lower sideband (LSB), above 10 MHz use upper sideband (USB)

 

Proposed usage of 630m band -(WRC-12, VA14_C4_Rec_02)

 472 475 kHz              CW only – maximum bandwidth 200 Hz

475 – 479 kHz              CW + digimodes

If a frequency is to be selected, particular attention must be paid to still existing Non Directional Beacons (NDB) of the radionavigaton service!

RR 5.80A The maximum equivalent isotropically radiated power (e.i.r.p.) of stations in the amateur service using frequencies in the band 472-479 kHz shall not exceed 1 W. Administrations may increase this limit of e.i.r.p. to 5 W in portions of their territory which are at a distance of over 800 km from the borders of Algeria, Saudi Arabia, Azerbaijan, Bahrain, Belarus, China, Comoros, Djibouti, Egypt, United Arab Emirates, the Russian Federation, Iran (Islamic Republic of), Iraq, Jordan, Kazakhstan, Kuwait, Lebanon, Libya, Morocco, Mauritania, Oman, Uzbekistan, Qatar, Syrian Arab Republic, Kyrgyzstan, Somalia, Sudan, Tunisia, Ukraine and Yemen. In this frequency band, stations in the amateur service shall not cause harmful interference to, or claim protection from, stations of the aeronautical radionavigation service.(WRC-12)

RR 5.80A The use of the frequency band 472-479 kHz in Algeria, Saudi Arabia, Azerbaijan, Bahrain, Belarus, China, Comoros, Djibouti, Egypt, United Arab Emirates, the Russian Federation, Iraq, Jordan, Kazakhstan, Kuwait, Lebanon, Libya, Mauritania, Oman, Uzbekistan, Qatar, Syrian Arab Republic, Kyrgyzstan, Somalia, Sudan, Tunisia and Yemen is limited to the maritime mobile and aeronautical radionavigation services. The amateur service shall not be used in the above-mentioned countries in this frequency band, and this should be taken into account by the countries authorizing such use. (WRC-12

 

Unmanned transmitting stations:

 

      IARU member societies are requested to limit this activity on the HF bands.  

      It is recommended that any unmanned  transmitting   stations on HF shall only be activated under operator control except

      for  beacons agreed with the IARU Region 1 beacon coordinator, or specially licensed experimental stations.

The term “automatically controlled data stations” includes Store and Forward stations.

 

Recommendation VA14_C4_REC_06:

Member Societies are reminded of the recommendation in the IARU Region 1 HF Band Plan ‘that any unmanned transmitting stations on HF shall only be activated under operator control, except for beacons agreed with the IARU Region 1 Beacon Coordinator’.


Unmanned transmitting stations, and operation involving unmanned transmitting stations, must adhere to the frequency and bandwidth limits of the band plan.

The operator connecting to an automatically controlled unmanned transmitting station is responsible for not causing interference. This is particularly important in the 30 meter band where the amateur service only has secondary status.

Amateur radio operators may transmit messages via unmanned transmitting stations during coordinated emergency, and disaster preparedness exercises, limited to the duration of such exercises, using a bandwidth not exceeding 2 700 Hz.

Such communication should be announced regularly on the frequency, and radio amateurs not participating in the communication should cooperate by not transmitting on the frequency.



History
     
2005 Davos Introduction of band plan by bandwidth. Effective 1 January 2006
2008 Cavtat Several modifications. Effective 29 March 2009
  CW segment extended from 7000 - 7035 kHz to 7000 -7040 kHz.
  Narrow band modes, digimodes segment moved and extended from 7035 -7038 kHz to 7040 -7047 kHz.
  Narrow band modes, digimodes, segment for automatically controlled stations (unattended)
  moved and extended from 7038 - 7040 kHz to   7047-7050 kHz.
  All modes, digimodes, segment for automatically controlled stations (unattended)
  Introduction of SSB preferred contest segments 7060 -7100 kHz and 7130 -7200 kHz
  Introduction of Digital Voice Activity Centres.  
       
2011 Sun City Several modifications. Effective 17 August 2011
  CW contest preferred segment 7000-7025 kHz withdrawn.
  Segment 29100 - 29200 kHz changed from max. bandwidth 2700 Hz to max. 6000 Hz.
  Introduction of new segment 29100 - 29200 kHz for FM simplex operation (10 kHz channels).
  Removal of FM simplex channels 29520 - 29550 kHz and 29610 - 29650 kHz.
  Number of FM Repeater channels increased to eight, former FM simplex channels
  became new repeater input, respectively repeater output channels.
  FM repeater channels renumbered, RH1 = 29520 / 29620 kHz, RH8 = 29590 / 29690 kHz
  Introduction of FM Simplex Repeater 29610 kHz (parrot, input + output)
       
2014 Varna Several modifications. Effective 26 September 2014
       
  Segment 29000 - 29100 kHz: Change from max. bandwidth 2700 Hz to max. 6000 Hz.
  Satellite segment 29300 - 29510 kHz: Removal of downlink restriction