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Johnston and Midway Island
• Region 3: The rest of Asia and Oceania
The allocations are described in the Radio Regulations
published by the ITU. Article S5 describes the allocations in
detail. The RR publication can be bought from www.itu.int/
ITU-R/publications/rr/index.asp. The following analysis is
based on the 2001 publication of the RR.
4.1.1. 160 meters
Region 1:
1800 to 1810: No Amateur Radio allocation (used for Radioloca­
tion)
1810 to 1850: In principle, primary allocation for Amateur
Radio, but… .
1810 to 1830: In more than 50 countries, primary allocation is for
Fixed and Mobile services. Amateur radio is secondary.
1850 to 2000: Primary allocation to Fixed and Mobile services.
In about 30 countries (eg, DL, OZ, OH, ON, HA, EI, 4X, OK,
G, U, SM, etc) this section can be allocated to Amateur
service but with a power limit of 10 W.

Region 2:
1800 to 1850: Allocated exclusively to Amateur Radio
1850 to 2000: Shared between Amateur, Fixed, Mobile, Radio­
location and Radionavigation. In most South American
countries this section is allocated to Fixed and Mobile
services on a primary basis (which means Amateur Radio
is secondary).
Region 3:
1800 to 2000: Shared between Amateur, Fixed, Mobile,
Radionavigation and Radiolocation. There are still spe­
cial previsions to protect the Loran frequencies, but as the
system is no longer used, it is of no impact.
4.1.2. 80 meters
Region 1:
3500 to 3800: Shared between Amateur, Fixed and Mobile
services

Region 2:
3500 to 3750: Exclusively Amateur Radio
3750 to 4000: Shared between Amateur Radio, Fixed and

Mobile services. In LU, CP, CE, HC, ZP, OA and CX the
Amateur Radio allocation is secondary. In VE and OX
3950-5400 can be used for Radiobroadcasting as a pri­
mary service.

Region 3:
3500 to 3900: Shared between Amateur Radio, Fixed and
Mobile services
3900 to 3950: Aeronautical Mobile and Broadcasting
3900 to 4000: Fixed services and Broadcasting
4.1.3. 40 meters
Region 1:
Before March 29, 2009:
7000 to 7100: Exclusive Radio Amateur (in some
African countries, 7000-7050 is also allocated to Fixed
service as primary service)
7100 to 7300: Broadcast (as if we didn’t know that…)
After March 29, 2009:
7000 to 7200: Exclusive Radio Amateur (in some countries
Fixed service can be used as primary service)
7200 to 7400: Broadcast

Region 2:
7100 to 7300: Exclusive Amateur Radio
Region 3:
Before March 29, 2009:
7100 to 7300: Broadcast
After March 29, 2009:
7000 to 7200: Exclusive Amateur Radio (in some countries
Fixed service can be used as primary service)
7200 to 7400: Broadcast

4.2. The IARU Bandplan
The IARU (International Amateur Radio Union) groups
one National Radio society from each member country (the
most representative one) and sets out as one of its goals to
establish and maintain a band plan that has been approved by
all of the IARU radio societies. The IARU is organized in the
same 3 regions as the ITU (see section 4.1).
Table 2-1 (Source: IARU Web page) gives an overview
of the band plan regarding 160, 80 and 40 meters in the three
regions. This table does not mean that all countries in a given
region are permitting operation in all of the segments men­
tioned in the table! It is obvious that the 7 MHz band plan will
substantially change after March 29, 2009, when the new
frequency allocations in the 40m band will come into effect.

4.3. Let’s be Practical

Fig 2-1—W1BB, Mister 160 Meters, in his shack late in
his career.

4.3.1. Let’s be practical on 160 meters
For successful DXing on 160 meters, knowing that most
of the serious DXing on this band is done on CW, the band
plan should reserve a window exclusively for CW. So far the
IARU band plans have provisions for CW subbands and
Phone + CW subbands. This probably stems from the historic
days of Amateur Radio, but I cannot see any reason why the
Phone bands should not be as exclusive as the CW subbands!
New to the IARU 160 band plan is the inclusion of
“digimode” windows. In creating these new windows, con­
sideration should be given for everyone already on the band
DX-Operating on the Low Bands

CHAP2.pmd

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2/8/2005, 9:43 AM

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