Amateur Radio Compliance Red Lines: Power, Frequencies, and Interference
The most common misconception
Plenty of people’s understanding of radio regulation stops at “I bought the radio, so I can use it.” Unbox, power on, transmit.
In China, the State Council’s Regulation on the Administration of Radio — comprehensively revised by Order No. 672 and in force since 1 December 2016 — says otherwise. Using radio frequencies requires a license, with narrow exemptions, and setting up and using a radio station requires a station license from the regulator. Amateur frequencies are among the categories exempted from separate frequency-use licensing, but the station license itself remains mandatory. Between buying gear and legally transmitting sits a complete approval process, and skipping it is a violation.
Article 6 of the Regulation compresses three sentences worth reading literally:
- No unit or individual may use radio frequencies without authorization;
- No unit or individual may cause harmful interference to lawfully operated radio services;
- No unit or individual may use radio stations for illegal or criminal activities.
Ten years after the revised Regulation took effect, regulators still find that these three lines are exactly where amateurs get into trouble.
Why unauthorized modification is dangerous
Modified equipment is the classic generator of spurious emissions. The consequences are rarely “my signal sounds worse.” At the mild end, your own organization’s traffic is disrupted and monitoring data is lost, affecting production scheduling. At the severe end, you interfere with radio communications supporting critical infrastructure and endanger public safety.
One illustration from Hubei’s monitoring authorities: they once displayed a fake base station about the size of an A4 sheet of paper, capable of blasting 100,000 scam text messages per hour while impersonating bank customer-service numbers for targeted fraud. Devices like that are precisely why radio regulation is strict.
Interference gets traced, faster than you think
Some operators assume “I’ll just transmit once, nobody will notice.” Monitoring networks are far more capable than that.
At a Jingzhou, Hubei monitoring event, amateur teams with handheld direction-finding gear competed to locate a simulated pirate transmitter; the fastest team finished in 18 minutes. That was hobbyist-level equipment. Professional monitoring stations run fixed sites, mobile monitoring vehicles, and transportable and portable units, and in many places fixed stations already cover every county. Once an interference complaint is filed, direction finding is a question of time, not capability.
The manufacturing side has red lines too
The red lines do not stop at the user. Some manufacturers ship transmitting equipment without applying for the required type approval (型号核准). The outcomes are confiscation of the product, administrative penalties, and a negative credit record for the company. For buyers, the lesson is direct: equipment whose approval status you cannot verify is a risk before you even switch it on.
Three constraints specific to amateur radio
China’s rules constrain what amateur radio is for. Under both the Regulation on the Administration of Radio and the Measures for the Administration of Amateur Radio Stations (MIIT Order No. 67, in force 1 March 2024), amateur stations exist for mutual communication, technical research, and self-training. In practice that means:
- No commercial business on amateur frequencies, and no relaying commercial information for third parties. This is the foundation of the service’s privileges.
- No harm to other services. Do not occupy aviation, maritime, or emergency frequencies, and do not transmit over a station already using a frequency — if you hear someone there (the QRL convention), move.
- Open communications only. Coded language and encrypted traffic are not permitted; amateur radio is an open service.
For comparison, the US Part 97 framework draws similar lines. Section 97.113 prohibits communications for compensation or pecuniary interest, music with narrow exceptions, communications intended to facilitate a criminal act, messages encoded to obscure their meaning, obscene or indecent language, and false or deceptive identification. Section 97.119 requires station identification by call sign at least every 10 minutes. Section 97.313 caps transmitter power at 1.5 kW PEP, requires the minimum power necessary for the communication, and imposes lower limits on certain segments — 200 W PEP on the 10.1 MHz segment, for instance, and 50 W ERP on 60 meters. The details differ by country, but the shape of the rules — non-commercial, open, minimal power, identified — is remarkably consistent. Generally speaking, check your own regulator’s rules rather than assuming any list applies to you.
Daily habits that keep you inside the lines
- Check type approval before buying, and make sure the equipment’s frequency coverage matches amateur use.
- Transmit only within the bands and power your license specifies; pursue higher power or longer range through proper channels.
- Do not modify the core parameters of type-approved equipment, and do not bolt amplifiers onto low-power devices.
- Listen before you call; confirm the frequency is clear.
- Join a local amateur society to keep up with local frequency plans and current requirements.
Compliance is not an annual inspection task. It is a set of daily habits, and making these automatic is more useful than memorizing statute text.
References
- State Council and Central Military Commission (China), Regulation on the Administration of Radio, Order No. 672, revised 11 November 2016, in force 1 December 2016 — full text on gov.cn.
- MIIT (China), Measures for the Administration of Amateur Radio Stations, Order No. 67, in force 1 March 2024.
- Hubei Provincial Department of Economy and Information Technology, “Jingzhou Monitoring Station: Building the Defense Line, Guarding Radio Safety Together,” 6 May 2025.
- CRAC Amateur Radio Branch, Initiative on Strengthening Self-Discipline Among Amateur Radio Enthusiasts to Maintain Good Airwave Order, n.d.
- FCC, 47 CFR Part 97 (eCFR, current text) — Sections 97.113, 97.119, and 97.313.