BAND PLAN - FREQUENCY ALLOCATION - SULTANATE OF OMAN

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Definitions

 Notes

The frequencies in the band plan are understood as “transmitted frequencies” (not those of the suppressed carrier).
(*) Lowest dial setting for LSB Voice Mode: 1843, 3603, and 7053 kHz.
(##) Highest dial setting for USB Voice Mode on the 60m band: 5363 kHz.

CW: CW QSO’s are accepted across all bands, except within beacon segments.

Sideband usage: Below 10 MHz, lower sideband (LSB) is recommended, and above 10 MHz, use upper sideband (USB). The exception to this is on the 5 MHz band where USB is recommended.

Amplitude Modulation (AM): may be used in telephony sub-bands, providing consideration is given to adjacent channel users.

Out of Band: To prevent any out-of-band transmission, the maximum dial setting for USB (upper sideband) Voice Mode should be 3 kHz below the upper band edge on bands 20m to 10m

60m band: 5351.5 – 5366.5 kHz: Details shown in the band plan above should be understood as “proposed usage” (LA17_C4_REC_02).

It is strongly recommended that frequencies within the WRC-15 allocation only be used if there are no other frequencies available at 5 MHz under domestic (ITU-R Article 4.4) permissions.

 Local nets and long rag chew QSOs should not use the WRC-15 allocation at 5 MHz but should instead make use of the 3.5 MHz – 5 MHz domestic or 7 MHz bands where there is more spectrum available.

Contest activity shall not take place on the 5, 10, 18, and 24 MHz bands. Non-contesting radio amateurs are recommended to use the contest-free HF bands (30, 17, and 12m) during the largest international contests.

Unmanned Transmitting Stations
The term “automatically controlled data stations” includes store-and-forward stations. Unmanned transmitting stations and operation involving unmanned transmitting stations must adhere to the frequency and bandwidth limits of the band plan.

 The operator connecting to an automatically controlled unmanned transmitting station is responsible for not causing interference. This is particularly important in the 30-meter band where the amateur service only has secondary status. Amateur radio operators may transmit messages via unmanned transmitting stations during coordinated emergency and disaster preparedness exercises, limited to the duration of such exercises, using a bandwidth not exceeding 2,700 Hz. Such communication should be announced regularly on the frequency, and radio amateurs not participating in the communication should cooperate by not transmitting on the frequency (VA14_C4_Rec_06).

Remote Controlled Operation on HF
Remote controlled operation is defined as operation where a licensed operator controls an amateur radio station from a remote-control terminal. Where a station is operated remotely, the following conditions shall apply:
Remote operation must be permitted, or not objected to, by the Regulatory Authority of the country where the station is located.

1. The callsign to be used should be the callsign issued by the Regulatory Authority of the country in which the station is located. This applies irrespective of the location of the operator.
2. It should be noted that the CEPT T/R 61-01 agreement only applies to people using their own callsign with the appropriate country prefix when the operator is actually visiting that country, not for operation.
3. Any further requirements regarding the participation of remotely controlled stations in contests or award programs are a matter for the various contests or award program organizers.