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    Educational Information Only

    The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.

    Telecommunications
    serious offence

    Unauthorized Use of Radio Spectrum in Thailand

    Using radio frequencies without NBTC allocation or operating radio equipment without proper licensing.

    Last updated: February 2026
    Legal Sections

    Radio Communications Act Section 6, NBTC Act Section 46

    Maximum Penalty

    Up to 5 years imprisonment and/or fine up to THB 100,000, plus equipment confiscation

    Severity Level

    serious

    Definition

    Using radio frequencies without NBTC allocation or operating radio equipment without proper licensing. Under Thai law, this offence is classified as a serious offence within the category of Telecommunications.

    Elements of the Offence

    For a conviction, the prosecution must prove all of the following elements beyond reasonable doubt:

    1

    Transmission of radio signals

    2

    Using unauthorized radio frequencies

    3

    Without NBTC spectrum allocation

    Penalties

    Maximum Penalty

    Up to 5 years imprisonment and/or fine up to THB 100,000, plus equipment confiscation

    Actual sentences depend on factors including the severity of the conduct, harm caused, prior convictions, and mitigating circumstances. Courts have discretion to impose lesser sentences within the statutory range.

    Possible Defences

    The following defences may be available depending on the circumstances:

    Valid spectrum license held

    Operating within ISM (unlicensed) bands

    Emergency communications

    Note: The availability of defences depends on specific facts. Professional legal advice is essential.

    For Foreigners

    Special Considerations for Foreign Nationals

    Foreigners operating unauthorized radio equipment (e.g., amateur radio without license, pirate stations) face criminal prosecution and equipment seizure.

    When Legal Representation Matters

    If you are accused of unauthorized use of radio spectrum or facing investigation, immediate legal representation is essential to protect your rights and build an effective defence.

    Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.

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