by svarc_admin | Aug 10, 2026
The way radio signals travel from one location to another.Propagation changes dramatically with frequency. VHF and UHF communication is often relatively local, while HF signals can travel hundreds or thousands of miles under suitable conditions. Terrain, the...
by svarc_admin | Aug 10, 2026
Push To Talk. The button or switch that changes your radio from receiving to transmitting. Press PTT to transmit; release it to listen.
by svarc_admin | Aug 10, 2026
Operating using relatively low transmitter power.QRP operators deliberately use low power as part of the challenge, often seeing how far they can communicate with modest equipment and efficient antennas. The term is particularly common in HF operating.
by svarc_admin | Aug 10, 2026
A radio shorthand expression meaning, essentially, “Who is calling me?” You may hear an operator use it after hearing a station but not understanding the call sign.QRZ.com is also the name of a popular amateur radio website, which is why beginners often encounter the...
by svarc_admin | Aug 10, 2026
Traditionally, QSL means confirmation or acknowledgment that a contact or transmission was received.A QSL card is a card exchanged between amateur operators confirming a radio contact. Today, contacts may also be confirmed electronically.
