20m To 10m IARU Band Plans - G7SYW's amateur radio bits & bobs...
 
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20m To 10m IARU Band Plans

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General notes to the Band Plan

ITU-R Recommendation SM.328 (extract)
Necessary bandwidth: For a given class of emission, the width of the frequency band which is just sufficient to ensure the transmission of information at the rate and with the quality required under specified conditions.

The use of Amplitude Modulation (AM) is acceptable in the all modes segments but users are asked to consider adjacent channel activity when selecting operating frequencies.

Foundation and Intermediate Licence holders are advised to check their licences for the permitted power limits and conditions applicable to their class of licence.

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20m (14 MHz)

Frequency Bandwidth Preferred Modes and Usage
14.000 – 14.060 MHz   200 Hz CW – contest preferred
14.055 MHz: QRS (slow) Centre of Activity
14.060 – 14.070 MHz   200 Hz CW
14.060 MHz: QRP (low power) Centre of Activity
14.070 – 14.089 MHz   500 Hz Narrow band modes
14.089 – 14.099 MHz   500 Hz Narrow band modes – automatically controlled data stations (unattended)
14.099 – 14.101 MHz   IBP – reserved exclusively for beacons
14.101 – 14.112 MHz   2.7 KHz All modes – automatically controlled data stations (unattended)
14.112 – 14.120 MHz   2.7 KHz All modes (excluding digimodes)
14.125 – 14.300 MHz   2.7 KHz All modes – SSB contest preferred segment
14.130 MHz: digital voice centre of activity
14.195 MHz +- 5 kHz: Priority for Dxpeditions
14.230 MHz: Image Centre of Activity
14.285 MHz: QRP Centre of Activity
14.300 – 14.350 MHz   2.7 KHz All modes
14.300 MHz: Global Emergency Centre of Activity

17m (18 MHz)

Frequency Bandwidth Preferred Modes and Usage
18.068 – 18.090 MHz   200 Hz CW
18.086 MHz: QRP (low power) Centre of Activity
18.095 – 18.100 MHz   500 Hz Narrow band modes
18.105 – 18.109 MHz   500 Hz Narrow band modes – automatically controlled data stations (unattended)
18.109 – 18.111 MHz   IBP – reserved exclusively for beacons
18.111 – 18.120 MHz   2.7 KHz All modes – automatically controlled data stations (unattended)
18.120 – 18.168 MHz   2.7 KHz All modes
18.130 MHz: SSB QRP centre of activity
18.150 MHz: digital voice centre of activity
18.160 MHz: Global Emergency Centre of Activity

15m (21 MHz)

Frequency Bandwidth Preferred Modes and Usage
21.000 – 21.070 MHz   200 Hz CW
21.055 MHz: QRS (slow) Centre of Activity
21.060 MHz: QRP (low power) Centre of Activity
21.070 – 21.090 MHz   500 Hz Narrow band modes
21.090 – 21.110 MHz   500 Hz Narrow band modes – automatically controlled data stations (unattended)
21.110 – 21.120 MHz   2.7 KHz All modes (excluding SSB) – automatically controlled data stations (unattended)
21.120 – 21.149 MHz   500 Hz Narrow band modes
21.149 – 21.151 MHz   IBP – reserved exclusively for beacons
21.151 – 21.450 MHz   2.7 KHz All modes
21.180 MHz: digital voice centre of activity
21.285 MHz: QRP Centre of Activity
21.340 MHz: Image Centre of Activity
21.360 MHz: Global Emergency Centre of Activity

12m (24 MHz)

Frequency Bandwidth Preferred Modes and Usage
24.890 – 24.910 MHz   200 Hz CW
24.906 MHz: QRP (low power) centre of activity
24.915 – 24.920 MHz   500 Hz Narrow band modes
24.925 – 24.929 MHz   500 Hz Narrow band modes – automatically controlled data stations (unattended)
24.929 – 24.931 MHz   IBP – reserved exclusively for beacons
24.931 – 24.940 MHz   2.7 KHz All modes – automatically controlled data stations (unattended)
24.940 – 24.990 MHz   2.7 KHz All modes
24.950 MHz: SSB QRP Centre of Activity
24.960 MHz: digital voice centre of activity

10m (28 MHz)

Frequency Bandwidth Preferred Modes and Usage
28.000 – 28.070 MHz   200 Hz CW
28.055 MHz: QRS (slow) Centre of Activity
28.060 MHz: QRP (low power) Centre of Activity
28.070 – 28.120 MHz   500 Hz Narrow band modes
28.120 – 28.150 MHz   500 Hz Narrow band modes – automatically controlled data stations (unattended)
28.150 – 28.190 MHz   500 Hz Narrow band modes
28.190 – 28.199 MHz   IBP – regional time shared beacons
28.199 – 28.201 MHz   IBP – global time shared beacons
28.201 – 28.220 MHz   IBP – continuous-duty beacons
28.225 – 28.300 MHz   2.7 KHz All modes – beacons
28.300 – 28.320 MHz   2.7 KHz All modes – automatically controlled data stations (unattended)
28.320 – 29.000 MHz   2.7 KHz All modes
28.330 MHz: Digital Voice centre of activity
28.360 MHz: QRP Centre of Activity
28.680 MHz: Image Centre of Activity
29.000 – 29.100 MHz   6 Hz All modes
29.100 – 29.200 MHz   6 Hz All modes – FM simplex (10 kHz channels)
29.200 – 29.300 MHz   6 Hz All modes – automatically controlled data stations (unattended)
29.270 MHz: UK Internet voice gateway – unattended
29.280 MHz: UK Internet voice gateway – unattended
29.290 MHz: UK Internet voice gateway – unattended
29.300 – 29.510 MHz   6 Hz Satellite links
29.510 – 29.520 MHz   6 Hz Guard channel
29.520 – 29.590 MHz   6 Hz All modes – FM repeater inputs (RH1-RH8)
29.600 MHz   6 Hz All modes – FM calling channel
29.610 MHz   6 Hz All modes – FM simplex repeater (parrot) – input and output
29.620 – 29.700 MHz   6 Hz All modes – FM repeater outputs (RH1-RH8)

Notes

  1. Beacons may be established for D.F. competitions except within 50km of NGR SK985640 (Waddington)