HF Beam Antenna Calculator|教育線上App不用買-HotApp4Game

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 SystemCalculators• HF Beam Antenna with 2 or 3 Elements• EIRP• Pure ERPArea Converters• Square Inches and Shorter Conversion• Square Feet & Yards & Meters ConversionDistance Converters• Inches & Centimeters & Millimeters Conversion• Feet & Yards & Meters Conversion• Nautical Miles, Statue Miles and Kilometers ConversionVolume Converters• US/Imperial to Metric Units Conversion• Metric to US/Imperial Units Conversion• Inches & Centimeters Volume Conversion• Feet, Yards, & Meters Volume ConversionThis app features: • Send your calculations or conversions by email • Universal App (iPhone, iPod Touch, and iPad)• Latest version of iOS is supported• iPhone 6, 6+, 5 screens and the original 3.5 inch screen are supported• Retina Display graphics • Fast app switching • Automatically Saves Your Inputs No network connectivity required.