Quick Answer
SSB Communication is not legal for all off-grid users. In the US, for example, 11-meter (27 MHz) SSB transmission is regulated by the FCC and requires a license, but CB radios are not allowed to transmit on these frequencies.
FCC Regulations for SSB Transmission
SSB transmission, particularly on 11-meter frequencies, is heavily regulated by the FCC. These frequencies, typically ranging from 26.965 to 27.235 MHz, are allocated for amateur radio use, and users must have a valid amateur radio license to operate on these frequencies. The FCC requires users to follow strict guidelines, including operating on designated frequencies, maintaining a minimum power output of 20 watts, and adhering to specific modulation and frequency stability requirements.
CB Radio Limitations
CB radios, on the other hand, are limited to 40-channel, 4-watt, AM transmission on frequencies between 26.965 and 27.235 MHz. While CB radios are exempt from FCC licensing requirements, they cannot transmit SSB signals or exceed the designated power output and channel limits. Attempting to modify a CB radio to transmit SSB signals or operate at higher power levels can result in fines and penalties.
Off-Grid Communication Options
For off-grid users, alternative communication options are available, including VHF and UHF two-way radios, satellite phones, and ham radios. These options can provide more flexibility and features, including longer-range communication, multiple channels, and digital encryption. However, users must still comply with FCC regulations and licensing requirements for these devices, and some may require additional certifications or permits.
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