Calculators
These are some of the best calculators that I have come across on the web. Many of them include the formula for the given calculation (just in case you want to try your math skills).
Best site I’ve found for RF calculators (baluns, ununs, feed line loss, etc.)
Inverted “V” Dipole Calculator
Metric to Imperial Size Calculator
Air Core Inductor Coil Inductance Calculator
Tables
American Wire Gauge (AWG) size Diameter in Inches and Millimeters
Fraction to Decimal Inches / Millimeters Chart
Solar Data Glossary
Have you ever wondered what all those abbreviations (like A Ind, K Ind, SFI, and SN) actually mean?
Well, here is a straight forward Glossary of them along with a brief, yet concise, explanation. Read it and impress your Ham buddies!
And, Many Thanks to N0NBH and all those involved!!
https://www.hamqsl.com/Glossary.pdf
N5ORO Files 