Le bandplanning entre 50 et 54 MHz
Attention: en Belgique uniquement le segment 50-52 MHz est accessible
| Frequency | Max Bandwidth | Mode | Usage |
| 50.000 50.100 |
500 Hz |
Telegraphy (except beacon project) |
50.000 - 010 Region-1 * 50.010 - 020 Region-2 * 50.020 - 030 Region-3 * * Reserved for future Synchronised Beacon Project (b) 50.050 CW future International centre of activity 50.090 CW Intercontinental centre of activity |
| 50.100 50.200 |
2700 Hz |
Telegraphy SSB |
International preferred 50.100 - 130 Intercontinental section 50.110 Intercontinental centre of activity(c) 50.130 - 200 international section 50.150 International centre of activity |
| 50.200 50.300 |
2700 Hz |
Telegraphy SSB |
General usage 50.285 for crossband |
| 50.300 50.400 |
2700 Hz |
MGM Narrowband Telegraphy |
50.305 PSK Centre of activity 50.310 - 320 EME centre of activity 50.320 - 380 MS centre of activity |
| 50.400 50.500 |
1000 Hz |
MGM Telegraphy |
Beacons exclusive |
| 50.500 52.000 |
12 kHz |
All modes |
50.510 SSTV 50.540 - 580 Simplex FM Internet Voice Gateways 50.550 Image frequency 50.620 - 750 Digital communications 50.630 DV calling 51.210 - 390 FM/DV Repeater Inputs, 20 kHz spacing (e) 51.410 - 590 FM/DV Simplex (f) 51.510 FM calling frequency 51.810 – 990 FM repeaters output channels, |
| 52.000 54.000 |
500 kHz |
All modes |
PAS AUTORISÉ EN BELGIQUE (f) |
DV: digital voice
1.2.1 Notes: bandplan
a. legacy usage for MGM is accepted, but effort should be made to move this to 50,300 – 50,400 MHz. Usage by operators may vary due to restrictions on national allocations
1.2.2 Notes: Usage
For the numbering of FM telephony see PART 2 section 1.4
In those countries within the European part of IARU Region 1 where it is allowed to set up FM repeaters on 50 MHz, the indicated channels are recommended in order to establish a commonality.
In those countries where the National Authorities do not permit repeaters to operate with output frequencies above 51 MHz, repeater output frequencies may be 500 kHz below the repeater input frequencies.(Tel Aviv 1996).
Footnotes:
b. The intercontinental DX calling frequency 50.110 MHz should not be used for calling within the European part of Region 1 at any time.
c. deleted.
d. For the specification of FM telephony PART 3 section section 8.1
e. This segment is for simplex use only with no Digital Voice gateways permitted. Embedded data traffic is allowed along with Digital Voice. DV users should check that the channel is not in use by other modes
f. In those Region 1 countries where 52 - 54 MHz (or parts thereof) is allocated, its use should be planned on the basis of up to 4 x 500 kHz blocks which may be sub-divided to suit digital applications. Amateurs using digital transmission methods must also ensure that their transmissions do not spread beyond band edges.
g. Experiments using wider bandwidth digital modes may take place in the 50 MHz band within the 50.5 - 52 MHz segment where local conditions permit, on the basis it does not cause interference to other users (including narrowband/beacon use)
• noting that potential options for this include around 50.6, 51.0 or 51.7 MHz and maximum bandwidth of around 50 kHz
• That Member Societies encourage such 50 MHz digital experiments to support innovation and development of the band and report results back to IARU Region 1
