Ham Radio Glossary

73 is an old telegraph code that means “best regards”
88 is an old telegraph code that means “hugs and kisses”
Amateur Service
A radiocommunication service for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest.
Amateur Station
A station licensed in the amateur service, including necessary equipment, used for amateur communication.
Amateur operator
A person holding a written authorization to be the control operator of an amateur station.
The Morse code abbreviation for “from” or “this is.”
Telegraphic shorthand for “Long Distance”. Usually DX refers to a long distance signal.
The practice of receiving and identifying distant radio signals, or making two-way radio contact with distant stations in amateur radio, citizens’ band radio or other two-way radio communications.
Dummy load
A station accessory that, replacing an antenna, allows you to test or adjust transmitting equipment without sending a signal out over the air. Also called dummy antenna.
A device that allows a dual-band radio to use a single antenna resonating on two different bands.
SWR Meter
A measuring instrument that can indicate when an antenna system is working well. A device used to measure SWR.
Solar Flare
A sudden eruption of energy on the solar disk lasting minutes to hours, from which radiation and particles are emitted.
Temporary areas of concentrated magnetic field on the sun, resulting in a darker area on the photosphere of the sun
Sunspot Cycle
The number of sunspots increases and decreases in a predictable cycle that lasts about 11 years.