How often are you on the air?
Heatmap shows the activity as reported by the Reverse Beacon Network (CW/digital modes) over the last 12 months. DJ1YFK
FCC opens 630 and 2200 meter bands
Before using either band, stations must notify the Utilities Technology Council (UTC) that they plan to do so. ARRL
Cyber threats prompt return of radio for ship navigation
The risk of cyber attacks targeting ships’ satellite navigation is pushing nations to delve back through history and develop back-up systems with roots in World War Two radio technology. Reuters
Homebrew J-Pole Antenna for GPS
The antenna is soldered directly to two terminals of an SMA connector. This is a through-hole PCB connector, which has 5 terminals (5 for ground and 1 for the center conductor). Eclectic Technical Experiences