amateur radio bandplans
TABLE OF CONTENTS
This manual page provides an overview of the IARU band plans. It contains
definitions for the terms used in the bandplans for each region and band:
Each IARU Region produces its own bandplan. Region 1 covers
Africa, Europe, Middle East, and northern Asia, Region 2 covers the Americas
and Region 3 covers the rest of Asia and the Pacific.
For each band segment, the maximum bandwidth is given. The maximum
bandwidth takes precedence over the preferred modes list. Any transmission
must fit within the maximum bandwidth, and should also be within the band
Centres of Activity are given as dial frequencies, and use of the
mode and/or activity may be found above or below this frequency not only at
the spot frequency.
Some segments specify a certain preferred usage, for example: DX
(Intercontinental communication), Contests, QRS (slow morse) or QRP (low
For SSB phone operations below 10 MHz lower sideband (LSB) is used
while upper sideband (USB) is used above 10 MHz. Exception: On the 60m band,
upper sideband (USB) is used.
In all regions, amateur Radio emergency communications should be
given priority over other usage.
This manual page was written for the HamBSD project by Ana
for the public domain.
- ACDS (Automatically Controlled Data Stations)
- Unattended data stations, including store and forward stations but not
digital voice repeaters or internet voice gateways. This also does not
- All modes
- Any mode that fits in the specified bandwidth of the frequency segment can
be used, including CW, Image Modes, Digimodes and Phone.
- A special class of unattended station, used to investigate propagation of
- CW (Continuous Wave)
- Morse telegraphy.
- DM (Digimodes)
- Any mode used for digital data communication, for example: RTTY, PSK,
JT65, WSPR, FT8 and SIM31.
- DV (Digital Voice)
- Any mode based on digitally encoded voice, for example: D-Star, FreeDV and
- EME (Earth-Moon-Earth)
- Weak signal modes using Earth-Moon-Earth, Meteor Scatter and Auroral
Scatter propagation paths.
- IBP (International Beacon Project)
- The International Beacon Project is a network of high-frequency radio
beacons organized by IARU, on 14.100, 18.110, 21.150, 24.930, and 28.200
MHz. The beacons can be used by amateurs to determine propagation
- Image modes
- Any analog or digital image modes, for example: SSTV or Fax.
- Any analog or digital voice modes, for example: SSB, DSB, AM, FM and DV
- QRP (Low Power)
- Use of any mode with low power, typically 5W output or below. Avoid QRP
centers of activity with high power stations.
- QRS (Slow) or QRSS (Very Slow)
- Slow morse telegraphy. Beginners may be found around these centers of