Tune High-Gain Dual-Band Mobile Antenna
To Tune High-Gain Dual-Band Mobile Antenna is one of the most important steps in achieving maximum signal efficiency and low SWR across both the 2-meter and 70-centimeter bands. The keyword…
February 2026
Take-Off Angle: Antenna Height Over Power
Amateur operators often chase more transmitter power, yet antenna height quietly controls real-world performance. In practice, the take-off angle determines where your signal actually goes. Therefore, understanding this angle explains…
Retevis RA89 Ham Radio
The Retevis RA89 ham radio delivers impressive performance for its price and versatile use. It operates on dual bands, which lets users switch between frequencies easily, and it supports reliable…