Message 25818 in TECH.WW
From: G8MNY
Date: Mon, 13 Jul 26 06:50:00 Z
Newsgroups: TECH.WW
Subject: Unit Madness
Message-ID: <64811_GB7CIP>
Path: N2MH4|N3HYM|K5DAT|VK3AT|VK7AX|GB7CIP
R:260713/0702Z 33649@N2MH4.#SENC.NC.USA.NOAM LinBPQ6.0.24
R:260713/0701Z 9754@N3HYM.#FRDK.MD.USA.NOAM BPQ6.0.25
R:260713/0700Z 45548@K5DAT.#NEWI.WI.USA.NOAM LinBPQ6.0.25
R:260713/0700Z 28915@VK3AT.#MEL.VIC.AUS.OC LinBPQ6.0.24
R:260713/0659Z 14183@VK7AX.#ULV.TAS.AUS.AUNZ LinBPQ6.0.24
R:260713/0650Z @:GB7CIP.#32.GBR.EURO #:64811 [Caterham Surrey GBR]
From: G8MNY@GB7CIP.#32.GBR.EURO
To : TECH@WW
By G8MNY (Updated Aug 12)
After helping with a local ham radio course, I realise how confusing some of
the units, symbols, and names are to new comers.
Here is a short look at the problem if the names/units/symbols get misused or
are unclear. They can normally be distinguished by the context & a thorough
knowledge of the subject concerned.
UNIT/
SYMBOL POSSIBLE MEANINGS
Altitude, Argon.
B Magnetic Induction, Bars, Boron.
Cycles, Carbon.
D Distance, Density, Dynes, Direction, Drag.
E Energy, Electric Fields, EMF, PD, Voltage, (e)rgs, Exa 10^18.
F Farad, Frequency Occurance, Force, Feet (Ft), Femto 10^-15, Fluorine.
G Force of Gravity Gals, Giga 10^9, Conductance, (g)rams, Gauss, Gain.
H Henrys, Magnetic Field, Height, Hertz (Hz), Hydrogen.
I Current, Inductance, Inertia, Iodine, Imaginary in Maths.
J Jules, (j) imaginary in Electrical.
L Lumens (Lm), (l)itre, Lux (Lx) Inductance, Loss, Length, Lift.
N Newton, Nano 10^-9, Nitrogen.
P Power, Pressure, Pascal (Pa), (p)ico 10^-12, Peta 10^15, Phosphorus.
Q Charge, Resonant gain.
R Resistance, Radius, Reluific gravity, reflection coeficient.
B as Back Electromotive Force.
G for Gm, transconductance in valves.
R, S, T, U, V, W for 3 phase electric systems.
X for an indepen Volume, Vanadium, (signal Phase Axis).
W Watts, Work, Weight (Force), Tungsten.
X Reactance, Left Right Axis, Unknown.
Y Up Down Axis, Yttrium, (Luminance Signal), Unknown.
Z AC Impedance, Far Near Axis, Network Type, Unknown.
,\ Lamda, wavelength.
(ohms etc. View in code page 437 Terminal Font)
And some more from LW1DSE
B as Back Electromotive Force.
G for Gm, transconductance in valves.
R, S, T, U, V, W for 3 phase electric systems.
X for an indepent variable in math.
Y for dependent var in math.
Why Don't U send an interesting bul?
73 De John G8MNY
← Return to Bulletin List