70.0 - 70.5 MHz
- Details
- Category: Spectrum
- Published: Sunday, 15 March 2009 15:29
- Written by ON4AVJ
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The 4 metre band
This bandplan is the simpliefied version, without the footnotes. If you want to have the fully detailed bandplan please refer to the VHF managers Handbook
IARU Spectrum Requirement
The amateur service requires an allocation at or near 70 MHz of at least 500 kHz on a secondary basis.
Considerations
In countries where allocated, this band is used for local amateur communication on 24-hour basis, including radio control of objects. Tropospheric scatter and sky-wave propagation (principally sporadic-E) are used for longer distances, as well as auroral propagation at the higher latitudes. Meteor scatter has been used for Morse code and voice communications primarily during meteor showers. Newer computer-based techniques make meteor scatter possible for distances up to 2 000 km.
A Regional allocation is sought for Region 1, where the following countries are already authorized to use all or part of this band: Belgium, Cyprus, Denmark, Faroe Islands, Gibraltar, Greece, Ireland, Italy, Luxembourg, Monaco, Montenegro, Portugal, Serbia, Slovenia, Somalia, South Africa, Sweden and United Kingdom.
Varna 2014 (no changes in Landshut 2017)
Frequency |
Maximum Bandwidth |
Mode |
Usage |
70.000
70.090 |
1 000 Hz |
Telegraphy MGM
|
Coordinated Beacons |
70.090 70.100 |
1 000 Hz |
Beacons |
Temporary and personal beacons 70.091 Personal WSPR beacons |
70.100
70.250 |
2 700 Hz |
Telegraphy SSB MGM |
70.185 Crossband center of activity 70.200 Telegraphy/SSB calling 70.250 MS calling |
70.250
70.294 |
12 kHz |
AM / FM |
70.260 AM/FM calling 70.270 MGM centre aof activity |
70.294
70.500 |
12 kHz |
FM Channels 12.5 kHz spacing
|
70.3125 digital communications 70.3250 digital communications
70.4500 FM calling 70.4625 70.4750 70.4875 digital communications |
Please see the IARU Region 1 VHF Handbook for details