Amateur radio frequency bands, power and classes of emission are defined in Annex 1 of the IMDA Amateur Handbook. The latest version is Version 5 from December 2025.
160 m – 10 m
All HF bands from 160 m to 10 m are available for amateur operation in Singapore except 60 m. The maximum allowed output power is 800 W PEP, except on 160 m, where it is limited to 26.67 W PEP. See the latest IMDA handbook for details on shared bands and modes.
6 m
The 6 m band is officially off limits for amateur radio operation in Singapore except for the single spot frequency of 50.313 MHz. Maximum output power is limited to 100 W PEP, and bandwidth is limited to 3 KHz using upper sideband (USB). This is to allow operation on the main FT8 calling frequency. Operation on this frequency is a special exception granted to Singapore radio amateurs and is not detailed in the latest IMDA handbook. Please contact SARTS for more details.
2 m & 70 cm
The 2m band in Singapore is from 144-146 MHz, with a maximum output power of 25 W PEP. The 70cm band is from 430-440 MHz with a maximum power of 10 W ERP. See the latest IMDA handbook for more details on modes and shared bands.
Above 70 cm
All amateur operation above the 70 cm band is by special permission only. Please contact IMDA to submit a request.
Portable Operation
When established as a mobile or portable station, the call-sign shall be the call sign allotted to the general station followed by /M or /P
Transmitter output power of the portable station shall not exceed 10 W (erp)