Tag Archives: arrl

HF Beam Antenna & EIRP & Pure ERP Calculator & Maidenhead Locator

Available in the App Store

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)
• iOS 6 & 7 are supported
• iPhone 5’s 4 inch screen and the original 3.5 inch screen are supported
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs

No network connectivity required.

Available in the App Store

Ham Radio Antenna

Available in the App Store

Description

The Ham Radio Antenna app is a useful calculator for amateur radio enthusiast (Ham Radio). It calculates using US Statute, Nautical, and Metric units. It is versatile and flexible for your convenience.

Antenna Calculators

• 5/8th Wave Vertical
• Half-Wave Dipole
• Dipole & Inverted Vee
• Ground Planes
• Quad (Cubical)

Visibility & ERP & EIRP Calculators

• Horizontal Visibility
• Pure ERP and EIRP
• VSWR Loss Calculator
• EIRP Calculator for Transmitter power, Gain, and Power Loss

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)
• iOS 5 & 6 are supported
• iPhone 5’s 4 inch screen and the original 3.5 inch screen are supported
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs

No network connectivity required.

 

Available in the App Store