What Is Amateur Radio? The Hobby That Works When the Grid Doesn't
A hobby that looks pointless on paper
Start with the obvious objection. Mobile coverage is good, messages arrive in seconds, video calls rarely stutter. So why would anyone buy a transceiver, study for a license exam, and spend evenings on a rooftop with a length of wire, listening to a frequency that may stay silent all night?
Measured by pure communication efficiency, amateur radio loses badly. Its value sits elsewhere — in independence from infrastructure, in the physics, and in a community that has spent a century building its own networks.
A link that needs nothing but two radios
A phone call depends on powered base stations, intact fibre, and a running core network. Take away any one of the three and the phone becomes a brick. An amateur radio link is much shorter: a transceiver, a battery and an antenna are enough for two people to talk directly. On the shortwave bands it gets more interesting. The signal travels up to the ionosphere, refracts, and comes back down hundreds or thousands of kilometres away; two or three hops can carry it to the other side of the planet. No towers, no servers, no subscription.
This is not a classroom story. After public networks failed during the July 2021 floods in Xinxiang, Henan Province, and again during the 2023 flooding in Fangshan, Beijing, local amateurs were among the first to set up temporary links and pass information out of the affected areas. The pattern repeats internationally. The ARRL’s Amateur Radio Emergency Service exists for exactly the moments “when all else fails,” and the ITU’s handbook on the amateur services notes that amateur radio can provide communications independent of the telephone network during the first days of a disaster, before relief agencies arrive.
What the law says it is
The ITU Radio Regulations define the amateur service (No. 1.56) as one “for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, by duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.”
Three ideas are packed into that sentence:
- Intercommunication — peer-to-peer contact between licensed amateurs. Not a broadcast service, and not a delivery channel for someone else’s business.
- Technical investigation — building antennas, studying propagation and experimenting with modes is the encouraged part, not the tolerated part.
- No pecuniary interest — the red line. Amateur frequencies cannot carry commercial traffic.
In China, the State Radio Regulation and MIIT Order No. 67, the Administrative Measures for Amateur Radio Stations (in force since 1 March 2024), restate the same principles: amateur stations may be used only for mutual communication, technical research and self-training, within amateur frequency ranges, and not for commercial gain. Order 67 also permits communication with non-amateur stations when genuinely required for emergency response, and prohibits broadcasting without approval.
The same three-part logic — qualifying examination, station license, call sign — appears in different packaging almost everywhere, because it descends from one international framework. ITU Radio Regulations Article 25 asks every administration to verify the operational and technical qualifications of anyone who wants to operate an amateur station.
What people actually do with a license
It helps to stop thinking of amateur radio as “an expensive walkie-talkie.” The activity splits into rough layers:
- Local voice through repeaters. A handheld radio reaches a repeater on a hill or a tower, which retransmits at higher power over tens of kilometres. This is where most newcomers start, and where the local club scene lives.
- DX on HF. Twenty metres, forty metres and their neighbours bounce signals off the ionosphere to reach stations in other countries. Confirm contacts with a hundred of them and you can apply for ARRL’s DXCC award.
- Digital modes. FT8 and its relatives decode signals well below the noise floor, so a few watts and a modest antenna can complete a transatlantic contact. Digital voice systems such as DMR and C4FM link local repeaters to the internet.
- Satellites. The ISS has carried an amateur station continuously since 2000, and SO-50 has served as an FM repeater in orbit since 2002. A dual-band handheld and a small yagi antenna are enough to work them.
- Portable operation. POTA and SOTA put a rules framework around taking the radio to a park or a summit and running it from batteries.
- Emergency and public service. Drills, races, marches — and occasionally the real thing.
Most veterans run several of these in parallel. The ceiling is high and the entry fee is low, which is an unusual combination.
What it takes to transmit legally
In China you need three documents together: an operator certificate (Class A, B or C), a station license for the specific equipment, and an assigned call sign. Newcomers mix these up constantly, so it is worth being blunt: the operator certificate alone does not authorise you to transmit.
Listening, by contrast, is open almost everywhere. A receive-only device such as an RTL-SDR dongle can tune amateur bands, broadcast stations, aviation traffic and weather satellites without any license. Neither the FCC in the United States nor Ofcom in the United Kingdom requires a license to receive — transmitting is the regulated act.
Elsewhere the same idea is packaged differently. In the United States, a single FCC license covers operator and station, in three classes: Technician (35 questions, all amateur bands above 30 MHz plus limited HF privileges), General and Extra. The United Kingdom uses Foundation, Intermediate and Full. CEPT Recommendation T/R 61-01 lets a licensed visitor operate in other participating countries under their home license. If you ever travel with a radio, that document is worth knowing about.
How big is this community
The ARRL counts over two million licensed amateurs in the United States alone. In China, public reporting puts the number of licensed operators in Chongqing alone above four thousand, and provinces such as Shandong, Guangdong and Hubei run provincial emergency communication exercises every year with local amateurs as the core participants. Nobody in this hobby is ever the only one.
So why bother?
The honest answer has two layers. One is curiosity — some people genuinely want to know how an electromagnetic wave gets from a rooftop in one city to another continent, and this hobby answers that question with direct experience rather than a textbook diagram. The other layer is redundancy. When every infrastructure-dependent channel is down, someone still has to hold the last path open. Amateur radio is one of the few hobbies where the hobbyist and the backup system are the same person.
References
- ITU Radio Regulations No. 1.56 and No. 25.6, as quoted in Recommendation ITU-R M.1544-1, “Minimum qualifications of radio amateurs” (ITU, 2015)
- ITU, “Handbook on Amateur and Amateur-Satellite Services” (ITU, 2014)
- Ministry of Industry and Information Technology of China, Order No. 67, “Administrative Measures for Amateur Radio Stations” (MIIT, 2024)
- ARRL, “Ham Radio Licenses” (ARRL, accessed 2026)
- ARRL, “Amateur Radio Emergency Service (ARES) Fact Sheet” (ARRL, 2022)
- NOAA Space Weather Prediction Center, “HF Radio Communications” (NOAA SWPC, accessed 2026)