内容简介  · · · · · ·

From back cover - Advice on choosing a transceiver and power supply; Practical information to help you choose and install economical antennas; Science of how signals travel; Using your voice on the HF bands; Code conversations; Digital Universe; Chasing contacts and awards; FM No static at all; Weak signals and the world above 50 Mhz. (Description by http-mart)