Amateur Radio Tools and Utilities
AA9PW Amateur Exam Practice Pages
BeeConverted - Free conversion software, converts feet to meters, etc.
Convert Feet to Meters
Cubical Quad Antenna Calculator
Current UTC and U. S. Time
Determine the Power Output to your Antenna
Determine the Efficiency of Transmission Line
Fraction to Decimal Conversion Chart - Fraction to decimal and fractional inch to millimeter conversion charts.
Grid Square Conversion
HF Propagation & Solar-Terrestrial Data Website - Near real time MUF map and other data.
Three Element Yagi Calculator
Time Zone Conversions
Electronic Calculators
Current Limiting Resistor Calculator for LEDs
Other Tools and Utilities
Universal Currency Conversion - Convert money with this interactive currency table.
UPS Quick Time and Cost Calculator - Figure shipping cost.
U. S. Postal Service - Online postal rates, zip codes and more.