Modes
This page gathers HamWiki's articles on modes: the ways a signal carries voice or data, from Morse code, single sideband and FM to FT8, digital voice and packet data.
Start with
- Morse code — CW, the oldest mode in radio and still one of the most used
- Single sideband — the voice mode of almost all HF contacts
- FM — the voice mode of handhelds, mobile radios and repeaters
- FT8 — a computer-decoded digital mode for signals too weak to hear
- DMR — digital voice adopted from commercial two-way radio
- APRS — a shared network for positions, weather and short messages
- Packet radio — computer data sent in short, error-checked blocks
- RTTY — radioteletype, the oldest digital mode in amateur radio
Morse
Morse code · Learning Morse code · Prosigns
Voice
Single sideband · AM · FM · CTCSS and DCS
Digital voice
DMR · D-STAR · System Fusion · M17 · Project 25 · Hotspots · FreeDV
Weak-signal and keyboard modes
FT8 · FT4 · WSPR · JS8Call · PSK31 · RTTY · Olivia · Hellschreiber
Data and messaging
Packet radio · APRS · Winlink · VARA · Pactor · KISS protocol · TARPN · KA9Q NOS and JNOS · Mercury (data mode)
Pictures
Mesh networks
AREDN · Meshtastic · LoRa
Software
WSJT-X · JTDX · Fldigi · Direwolf · VarAC · LinBPQ · Digital mode interface
Light
Laser and optical communications