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Ham Radio Technician's Exam Cheat Sheet Cheat Sheet (DRAFT) by

This Cheat sheet is designed to be something you can use to study for the HAM Radio Technician's exam. It is based on the technique at http://arfunk.com/fun/amateur-ham-radio/guide-to-passing-amateur.html which instructs you to make a cheat sheet, and transcribe it to another piece of paper just before taking your exam so the material is fresh in your head. DO NOT TRY TO TAKE THIS INTO THE EXAM!

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Variables

E
Voltage in Volts
I
Current in Amperes (A)
R
Resistance in Ohms (Ω)
P
Power in Watts (W)
 

Formulas

300 =
Frequency (MHz) x Wavelength (Meters)
E
 
I x R
(Ohm's Law)
P
 
E x I
 

Prefixes

giga
G
1,000,­000,000
GHz
mega
M
1,000,000
MHz
kilo
k
1,000
KHz
   
1
Hz
milli
m
0.001
thousandth
micro
μ
0.000 001
millionth
nano
n
0.000 000 001
billionth
pico
p
0.000 000 000 001
Sometimes these are written as exponents in scientific notation.
For values > 1: 10^(number of places)
- ex: 
Kilo: 10^3 = 1,000

For Values < 1: 10^(-n­umber of places­)[n­ega­tive]
- ex: 
milli: 10^-3 = 0.001