When modern communications falter, amateur radio remains there like an invisible thread that keeps people and communities together. This world combines technique, curiosity and service, and allows you to chat around the corner or cross oceans with a handful of watts.
If you're wondering how to choose your equipment to get started, what antenna to use, or whether it's a good idea to start by just listening, you've come to the right place. We have gathered and reorganized all the key information on equipment, licensing, station setup, QRP, digital modes, codes, propagation and practical tips, with specific recommendations for the 20/40m and VHF/UHF bands.
Table of Contents
- Fundamentals of Amateur Radio
- Essential equipment to get started and progress
- Configure your station: home, mobile, and portable
- QRP Operation: Concept, Criteria, and Equipment
- Essential accessories for QRP
- Technique and practical aspects (DSP, AGC, CAT, digital)
- Legislation, procedures and diplomas
- Codes and common language (ICAO, Q, abbreviations)
- Operational practice and repeaters
- Radio, Internet, and SDR
- Coverage, VHF vs UHF and power
- Start listening only: 20/40 m, 2 m and indoor antennas
- FAQs
Fundamentals of Amateur Radio
Basic concepts of the activity
Amateur radio is a technical service and hobby in which you operate in frequencies assigned for non-commercial use, with a badge and license. It allows you to experiment, communicate locally and globally, and provide emergency assistance.
Its roots date back to the early 20th century, when early amateurs explored the airwaves and laid the groundwork for later advancements. It has evolved with technology, but maintains the spirit of learning, community and experimentation.
Licenses and privileges vary by country. In Spain, after passing the exam, you can operate on the bands designated for amateurs (with experimental exceptions). In the United States, the FCC offers three classes: Technician (mainly VHF/UHF), General (wide access to HF) and Amateur Extra (full access to all amateur bands).
Beyond the license, you'll discover a network of clubs, emergency networks, and activities that foster continuous learning. The community is as important as the team, and makes it easier for you to improve your skills with real practice.
Essential equipment to get started and progress
Essential equipment
Transceiver
It is the heart of the station: it transmits and receives on one or more bands and modes. There are handheld (HT), mobile and base, with different powers, performance and complexity.
- Hand Held (HT): Portable, simple, and ideal for getting started with VHF/UHF and repeaters. Popular examples: Yaesu FT-60R due to their robustness; affordable ones like the Baofeng UV-5R for basic uses and learning.
- Cellphones: More power and features, for the car or lightweight base. Many operate VHF/UHF, and some add HF. They perform better than a HT in local coverage.
- Base: more complete and powerful stations, multiband/multimode (HF/VHF/UHF) with selective receivers and advanced filtering. A modern reference in HF is the Icom IC-7300 for its integrated SDR and ease of use.
Antennas
The antenna is as important as the radio. Determines much of the effectiveness of your station both in reception and transmission.
- For HT: The “standard” ones work, but a quality upgrade extends range and clarity. A good antenna makes the difference in UHF/VHF.
- Base: vertical and dipoles. A widely used dual band VHF/UHF option is the Diamond X50A, and for mobile it highlights the Comet SBB-7In HF, mono or multiband and vertical dipoles are common solutions.
- Mobile: Vehicle-specific antennas (VHF/UHF) that fit the body and prioritize robustness and ease of installation.
Fuente de alimentaciĂłn
If you operate on a 13,8V DC basis, you need a stable and quiet RF source. Look at the amperage and noise: during TX demand increases. Linear models such as Astron RS-20A They are a safe bet for cleanliness and reliability; for emergencies, consider a blackout survival kit.
Coaxial cable
The coaxial cable connects the transceiver and antenna, and its quality affects loss and noise. For amateurs, 50 Ω are used.. For long runs and high frequencies, a premium cable like LMR-400 reduces losses. In fixed HF/VHF installations, RG-213 It is classic for loss/robustness balance; in mobile, RG-58 It is more manageable over short distances.
Useful accessories
A few extras multiply the experience. Quality microphones, headphones/external speaker, SWR/VSWR meter for adjusting antennas, and coupler (tuner) to match impedances, especially if your antenna is not resonant across the band.
Configure your station: home, mobile, and portable
Assembly and location
At home
Reserve a comfortable space with ventilation and reliable outlets. Plan your antenna installation well (mast/tower complying with local regulations) and manage the cabling with cable ties and protection. The choice of antenna will depend on the bands, budget, and available space.
Mobile
Ensures that the equipment is securely fastened and securely powered from the vehicle's battery. Choose antennas designed for cars and evaluate mobile equipment for its power/ergonomics if you use repeaters or go on trips.
Portable
For field operation, look for lightweight: HT or QRP HF equipment with batteries and compact antennas. Many start with an economical HT like the Baofeng UV-5R to learn local dynamics and access repeaters before making the jump to HF.
QRP Operation: Concept, Criteria, and Equipment
QRP refers to operating at reduced power: 5 W or less on CW and up to ~10 W on SSB/digitalIt's a technical and efficiency challenge: connecting far and wide with little, squeezing propagation, antennas, and ears.
QRP Selection Criteria
Rate portability (weight/size), reliability, performance/range, ease of use, and mode support (including digital if you're interested). Outdoors, every gram and every milliamp counts.
Featured Teams
- Yaesu FT-818ND: : all-mode HF/VHF/UHF with up to ~6 W. Versatile for those who want a compact “all-in-one”.
- Icom IC-705: Compact SDR with touch screen, native digital modes, excellent RX and ergonomics for portable.
- Xiegu G90: HF with integrated ATU and up to 20 W. Very competent for the price to take the first steps in HF/QRP+.
- Xiegu X6100: SDR with color display, integrated ATU and battery. 5 / 10 W depending on the power supply, designed to operate quickly.
- Elecraft KX2: a benchmark for performance and ultra-compactness. Great reception and modularity in a minimal body.
- (tr)uSDX: tiny and light, 5 HF bands (depending on version) and up to ~5 W with battery. Extreme portability without giving up the basics.
Essential accessories for QRP
In addition to the equipment, certain accessories greatly enhance the experience. Choose wisely so as not to overload and maximize uptime.
- Portable antennas efficient (light dipoles, EFHW, loops) optimized for your use.
- Batteries good capacity/density for long sessions without recharging.
- Antenna coupler (if the antenna is not resonant or you want multi-band with a single wire).
- Filters/Audio for noisy environments, improving intelligibility.
Technique and practical aspects (DSP, AGC, CAT, digital)
The station you set up will depend on interest and budget bandsA simple 144/430 MHz HT is fine if you're only using repeaters, but many opt for HF or all-mode equipment to cover more bands.
Antennas: from basic dipole to advanced array
With space, a single-band or multi-band dipole It's excellent in terms of cost/performance. The half-wave dipole's length is adjusted to the wavelength of the band; you connect the live wire and shield to each arm and isolate the center. Verticals and directives (Yagi) They are alternatives depending on objectives and space.
Balun and wiring
El balun (balanced–unbalanced) adapts symmetrical/asymmetrical lines and helps manage parasitic RF, improving reception and reducing SWR. In many antennas a balun 1:1 It is common. In coaxial, RG-213 for fixed, RG-58 for mobile for ease; prioritizes less loss the higher the frequency/run.
Accessory chain
The typical order in the transmission line is: Team → power amplifiers → Meter → Coupler → Filters → AntennaMaintaining this order prevents misreadings and maximizes efficiency.
Processing and control on the computer
El DSP filters and cleans the received signal. The AGC regulates gain (slow in voice, fast in digital). The speech processor Compresses audio to improve intelligibility. Monitor the ALC,: if you saturate it, you distort.
Computer control and digital modes
With CAT You control the transceiver from PC (frequency, modes, memory). A digital interface manages audio/PTT between PC and radio; there are “DIGI-CAT” combos that integrate everything. Digital modes open up a fun and efficient world of low power.
- RTTY: classic and robust (FSK, 45 baud).
- PSK (PSK31): narrow, very efficient in QRP and “keyboard to keyboard”.
- SSTV: radio images (also digital packet variant).
- ROS: Weak signal oriented, easy to operate, integrates frequency control and cluster switching.
- JT65 and family: designed for very weak signals (EME and HF), revolutionized difficult contacts with modest configurations.
Commonly used abbreviations (CW/digital)
A selection of shortcuts improves fluidity. Some of the most common are:
- ABT (about), ADR (address), AGN (again), ANT (antenna), AR (end of message)
- BURO (QSL office), CFM (I confirm), CL (station off), CQ (general call), CUL (see you later)
- CW (Morse), DE (of/from), DR (estimated), DX (long distance), FB (excellent)
- GA (come in), GB (goodbye), GE (good afternoon), GL (good luck), GM (good morning), GN (good night)
- GND (ground), GUD (good), HAM (ham), HR (here), HRD (heard)
- HVY (difficult), HW (how), K (pass), KN (only station called)
- MFD (µF), MNY (many), NIL (nothing), NM (number), OM (old friend)
- PSE (please), PWR (power), R (received), RX/RCVR (receiver), RIG (equipment)
- RPT (repeat), RTTY (radio teletype), RTX/TX (transmitter), SIG (signal), SND (transmit)
- SPK (speak), SRI (sorry), TFC (traffic), TNX/TKX (thank you), TU (thank you)
- TVI (TV interference), TXT (text), UR (you/yours), VFO (variable oscillator), VY (very)
- WKD/WKG (communiqué), WX (weather), XMTR/TX (transmitter), YL (miss), 73 (greetings), 88 (kisses)
Legislation, procedures and diplomas
To install antennas in homes, the administration may request a descriptive memory with floor plan/elevation, actual measurements and location of tower/mast, antenna, cabling and winds, citing brands/models. Tools such as Paint, urban maps or Google Earth help to dimension.
If you temporarily use your station outside your license district (according to Spanish regulations), prior authorization may be required and there may be time limits (for example, not exceeding one year, except for mobile stations). Always consult the current regulations.
The WARC bands (12 m, 17 m, 30 m) were reserved as saturation relief and competitions in them are generally avoided. They are excellent for DX under specific conditions.
El Bureau Each national association's QSL card exchanges cards between countries. Not all countries have one. The diplomas They allow “endorsements” upon reaching new milestones (stickers/seals added to the base diploma).
Un IRC (International Reply Coupon) is redeemed for postage in UPU countries. A manager QSL handles confirmations from stations in countries without a bureau; a contribution and self-addressed envelope are usually included. The contribution (stamps/IRC/dollars) covers the return of the QSL, without commercializing the spirit of courtesy.
En Competitions, respect the rules (bands, modes, exchange), do not self-announce (reason for disqualification in many), and send the log even with few QSOs: you give valuable points to others.
Codes and common language (ICAO, Q, abbreviations)
To spell indicatives the alphabet is used ICAO:
| A Alfa | B Bravo | C Charlie | D Delta | E Echo |
| F Foxtrot | G golf | H Hotel | I India | J Juliett |
| K Kilo | L Lima | M Mike | N November | O Oscar |
| P Pope | Q Quebec | R Romeo | S Sierra | T Tango |
| U uniform | V Victor | W Whiskey | X X-ray | Y Yankee |
| Z zulu | ||||
Q Codes Frequently asked questions: QRZ (Who's calling me?), QTH (location), QSO (communication), QRG (frequency), QSL (confirmation), QSB (fading), QRM (interference), QRN (atmospheric noise), QRT (cease transmission), QSY (frequency change), QTC (traffic), QRX (wait for call).
Other useful words: CQ (general call, with DX for long distance), PAN (relative emergency, x3), Mayday (serious danger, x3). Use them correctly avoid confusion operational.
Operational practice and repeaters
In "wheels"(QSOs with several stations), take the change only when it is your turn, write down who to pass it to and, when handing it over, first say their callsign, then "stop the wheel" and finally yours. Keep it dynamic and with reasonable interventions.
Los repeaters They extend VHF coverage, especially to mobile phones. They work with offset and, often, access tone. If you reach the live correspondent, release the repeater for its service function.
On VHF (SSB) QSOs tend to be shorter due to unstable propagation; share your lessor (grid) because it helps to exploit tropical “windows”. The exact position matters much in VHF/UHF.
DX refers to long distance (depending on the band, country/continent/rare entity). In special events it can be formed pile-ups (many stations calling at once). Stay calm and listen to the operator's pattern.
Work in split (phonic): You listen on the DX frequency and transmit a few kHz up/down as indicated (“up 5–10”). In digital, the offsets are usually smaller (“up 1”). Always follow their instructions.
About QRP as a suffix: In Spain, EA1XXX/QRP is not accepted as a call sign; indicate “working QRP” during the call or QSO if you wish to report.
Radio, Internet, and SDR
El cluster It's used to announce listeners/contacts (spots). It provides useful and concise spots (callsign, frequency, brief details) and avoids superfluous messages or self-advertisements (frowned upon and punishable in competitions). Format well portables/dxpeditions to avoid entity errors.
The Electronic QSLs (eQSL.cc) and LoTW facilitate confirmations by cross-checking logs. QRZ.com, HAMQTH, HAMCALL are databases with station information and signs.
To plan, consult spread forecasts. A SDR (Software Defined Radio) transfers functions to software and allows listen and control via PC; SDR receivers are available online for remote listening.
Many community guides are circulated under open licenses (e.g., Creative Commons), which facilitates shared learning and continuous improvement of materials.
Coverage, VHF vs UHF and power
Coverage depends on the orography, height and obstacles. In urban areas, buildings attenuate; in open areas the line of sight is lengthened. From peaks or ridges, the coverage improves a lot; in basements/basements, it degrades.
Construction materials matter: metal structures and thick walls they block more than just lightweight walls. Sheds can function as partial Faraday cages.
VHF (30–300 MHz): longer waves, better range outdoors without obstacles, worse penetration into buildings. UHF (300–3000 MHz): shorter waves, greater penetration indoors and through walls, although outdoors its linear range is smaller. The environment rules when choosing between VHF/UHF.
More power usually increases coverage, but it doesn't solve everything: antenna and location They provide as much or more. Equipment prices vary greatly by market; you'll find everything from affordable basic options to high-level stations with much higher costs.
Start listening only: 20/40 m, 2 m and indoor antennas
If you want to test the 20-40m range by listening, there are very cheap ways. An RTL-SDR It is cheap and versatile, but for HF it needs a converter or a version with direct sampling.
- Very low cost: RTL-SDR “Blog V3” with direct sampling mode in HF (acceptable for beginners) or RTL-SDR + upconverter (better performance in HF).
- Better sensitivity: SDRplay RSP1A (covers LF to microwave), Airspy HF+ Discovery (excellent in HF), Belka DSP (high sensitivity portable receiver), or Tecsun type shortwave receivers (e.g., PL-330/PL-990) for easy listening.
For indoor antennas, prioritize options that mitigate household noise. A magnetic loop (passive or active type MLA-30+) works very well indoors because it rejects nearby electric fields. You can also try a long thread (10–20 m) attached to the baseboard or perimeter by the window with a 9:1 balun/isolator and RF chokes in the coaxial to reduce interference.
Are 20 and 40 m interesting? Yes, very much so.: 40 m is very lively in the regional mid-afternoon/evening, and 20 m offers DX with good solar propagation. And 2 m? For local listening repeaters, networks and activity in your area It's perfect; with an SDR you can monitor beacons and transits, and with a cheap HT you can then join the conversation.
Practical recommendation to start: a RTL-SDR Blog V3 by price/performance + active loop type MLA-30+ indoors for HF; if the budget allows and you want quality, a Airspy HF+ Discovery o SDRplay RSP1A. In VHF/UHF, a simple broadband antenna indoor (or an outdoor vertical if you can) will reveal local traffic instantly.
