HFビームアンテナ計算機：高性能DIYアンテナのための精密測定

The Maidenhead & HF Beam Antenna is a useful utility to calculate the the Maidenhead LOCATION as well as HF Elements' size in Feet, Inches, and Meters for the Reflector, Driven Element, Director, and Spacing for two and three element beam antennas. Just input the frequency and select the number of elements. Automated Calculator • Maidenhead Locator System Calculators • HF Beam Antenna with 2 or 3 Elements • EIRP • Pure ERP Area Converters • Square Inches and Shorter Conversion • Square Feet & Yards & Meters Conversion Distance Converters • Inches & Centimeters & Millimeters Conversion • Feet & Yards & Meters Conversion • Nautical Miles, Statue Miles and Kilometers Conversion Volume Converters • US/Imperial to Metric Units Conversion • Metric to US/Imperial Units Conversion • Inches & Centimeters Volume Conversion • Feet, Yards, & Meters Volume Conversion This app features: • Send your calculations or conversions by email • Universal App (iPhone, iPod Touch, and iPad) • Latest version of iOS is supported • All iPhone screens are supported • Retina Display graphics • Fast app switching • Automatically Saves Your Inputs No network connectivity required.