The International Amateur Radio Union (IARU) is a federation of national associations of certified radio amateurs, representing over 150 countries and separate territories around the world.

The three IARU Regions are organised to broadly mirror the structure of the International Telecommunications Union (ITU) and its related regional telecommunications organisations. The Regions comprise:
- IARU Region 1: Europe, Africa, the Middle East and Northern Asia
- IARU Region 2: The Americas
- IARU Region 3: Asia-Pacific

The IARU represents the interests of the Amateur Radio Service worldwide to relevant international organisations, promoting the interests of amateur radio and seeking to protect and enhance its spectrum privileges.

International Amateur Radio Union - Region 1

New secondary allocations for Norwegian radio amateurs

As of November 6th 2009 the updated amateur radio licensing regulations in Norway went into force. The main news are the following new allocations made available to all Norwegian radio amateurs (in addition to the 135,7 - 137,8 kHz and the 7,1 - 7,2 MHz bands):

LF:

493 - 510 kHz on secondary basis, 100 W, A1A (CW) only.

Read more: New secondary allocations for Norwegian radio amateurs

40 and 160 meter extension in Belarus

Belarus has got an access to the extended 40 m band. In the 7100-7200 frequency range it is allowed to use SSB and CW with 500 W max (and as always, up to 1 KW in contests under a special authorization). The same decision of the State Comission for Radio Frequencies (dated May 14, 2009 but just recently released) the 160 m band has also been extended. The frequencies accessible are now 1810 to 2000 kHz.

40 meters to be extended in France

On 27 June 2009 the French administration announced that 7100-7200 kHz will be available to the amateur service. Unfortunately another signature is needed before publication.

4m beacon in Austria (OE)

The OeVSV VHF Manager, OE5MPL announces that a license to operate a beacon in the 4 m band was issued by the Austrian administration.

  • Callsign: OE5QL
  • The beacon frequency is: 70,045 MHz
  • Locator: JN78CJ 
  • Height: 840m ASL
  • Antenna: Half-Wave Vertical

The beacon is permitted to transmit from 1 June until 31 August 2009 and can only transmit two minutes per sequence between 04:00 and 19:47 UTC. Each sequence begins at full hour +00 min., +15 min., +30 min. and +45 min, e.g. 04:00-04:02, 04:15-04:17, 04:30-04:32 and 04:45-04:47. Transmission power is 1 W ERP the first minute of each sequence and 5 W ERP the second minute of each sequence.

If the beacon does not interfere with services outside of Austria, an extension is possible after August 2009. 

275+ GHz

 

Considerations

WRC-2000 extended the mandate of the ITU Radio Regulations from 275 – 400 GHz to 275 – 1000 GHz but did not make any specific allocations to radiocommunication services. However, the conference revised a footnote listing bands above 275 GHz used by passive services that should be avoided by active radiocommunication services. In addition, WRC-2000 adopted preliminary agenda item 2.3 for WRC-07 to review studies and consider allocations in the frequency bands above 275 GHz. The 2002 ITU Plenipotentiary Conference extended the mandate of the ITU to allocate much higher frequencies and studies have begun on frequencies up to 375 THz.

In order to continue with their activities, the Amateur Services will require allocations of sufficient bandwidth to permit experimentation spaced throughout the range 275 – 1000 GHz. Studies of amateur services’ requirements in this range should be completed in preparation for WRC-10. The radio astronomy service has indicated a desire to share with the amateur services in this range.

The amateur services seek to obtain not less than 75 GHz of spectrum in the band 275 – 1000 GHz in order to provide for future development of the amateur services utilising new technologies.

Analysis of attenuation due to gasses and precipitation through the atmosphere indicates that the following bands are better choices than others for the amateur services.

Better bands
Attenuation
(GHz)
(dB/km)
275 – 300
6
355 – 400
10
490 – 510
10
690 - 710
50
800 - 850
50

The following are the bands preferred for the amateur and amateur-satellite services because they are within the better bands identified above and are free of other radio-frequency lines of the greatest importance to the radio astronomy service. Primary allocations within these bands appears feasible, and the bands from 510 GHz and below are the most ideal for the amateur services, based on atmospheric attenuation, and where the bulk of the allocations within these bands is preferred.

Preferred bands for the amateur services

(GHz)
Available bandwidth (GHz)
280 – 294
14
358 – 363
5
365 – 371
6
389 – 400
11
493 – 496
3
506 – 510
4
692 – 710
18
810 – 850
40

The ITU has begun studies of frequency bands above 3000 GHz (3 THz), considered the beginning of the optical spectrum.

Amateur experiments and records

W4WWQ and WA1ZMS/4 on 10 Dec 06 02:16Z

322 GHz RF QSO FSK slow CW with SSpectran software for decoding

distance 7.3 km temp -2 degree C, dewpoint -17 degree. rel hum 31% additional atmospheric attenuation 4.13 dB/km

403 GHz 1.4 km WA1ZMS/4 W4WWQ/4 CW 21 Dec 2004
411 GHz 0.05 km DB6NT/P DL1JIN/P SSB 06 Jan 1998

Status of allocations in Region 1

Germany has (an) amateur allocation(s) above 275 GHz (source DK2NH 24 feb 2007)

241 - 250 GHz

 

IARU Spectrum Requirement

The Amateur Services seek to retain the new (WRC-2000) allocations or equivalent spectrum.

Comparison of pre and after WRC-2000 spectrum

Bands (GHz)
Former Amateur Allocations
New Amateur Allocations
241-248
RADIOLOCATION
Amateur
Amateur-satellite
RADIO ASTRONOMY
RADIOLOCATION
Amateur
Amateur-satellite
248-250
AMATEUR
AMATEUR-SATELLITE
AMATEUR
AMATEUR-SATELLITE
Radio astronomy

 

Bandplan

Varna 2014 ((no changes in Landshut 2017)

Frequency

maximum Bandwith MODE USAGE

 241.000

 248.000

  All modes  Not preferred segment

 248.000

 248.001

  All modes

AMATEUR SATELLITE SERVICE &

NARROW BAND MODES

 248.001

 250.000

  All Modes  preferred segment

Please see the IARU Region-1 VHF Handbook for details

142-149 GHz

 

IARU Spectrum Requirement

The Amateur Services seek to retain the new (WRC-2000) allocations or equivalent spectrum.

Comparison of pre and after WRC-2000 spectrum

Bands (GHz)
Former Amateur Allocations
New Amateur Allocations
142-144
AMATEUR
AMATEUR-SATELLITE
 
144-149
RADIOLOCATION
Amateur
Amateur-satellite
 

134 - 141 GHz

IARU Spectrum Requirement

The Amateur Services seek to retain the new (WRC-2000) allocations or equivalent spectrum.

Comparison of pre and after WRC-2000 spectrum

Bands (GHz)
Former Amateur Allocations
New Amateur Allocations
134-136
 
AMATEUR
AMATEUR-SATELLITE
Radio astronomy
136-141
 
RADIO ASTRONOMY
RADIOLOCATION
Amateur
Amateur-satellite

Bandplan

Varna 2014 (no changes in Landshut 2017)

Frequency

maximum Bandwith MODE USAGE

134.000

134.928

  All modes  

AMATEUR SATELLITE SERVICE

 134.928

 134.930

2700 Hz All modes  134.930 Narrow band centre of activity

 134.930

 136.000

  All modes  

 136.000

 141.000

  All Modes  Not preferred segment

Please see the IARU Region-1 VHF Handbook for details