Technical Abbreviations and Acronyms

Here are many of the abbreviations and acronyms commonly used with compliance testing.

A Ampere
AC Alternating Current
aH Ampere Hour
AM Amplitude Modulation
C Capacitance
CEN European Committee for Standardization
CENELEC European Committee for Electrotechnical Standardization
CISPR Comité International Spécial des Perturbations Radio
(International Special Committee for Radio Protection)
CL Current Loop
cm centimeter
CSA Canadian Standards Association
CW Continuous Wave
dB DeciBel
dBA Decibel per Ampere
dBm Decibel (1 milliwatt ref)
dBV Decibel per Volt
DC Direct Current
DMM Digital MultiMeter
DOD Department of Defense
DPDT Double Pole Double Throw
DPST Double Pole Single Throw
DVM Digital Volt-Meter
E-Field Electric Field
EHF Extremely High Frequency
EIA Electronics Industries Association
EIRP Equivalent Isotropically Radiated Power
ELF Extremely Low Frequency
EMC Electromagnetic Compatibility or Electromagnetic Compliance
EMI Electromagnetic Interference
EMP Electromagnetic Pulse
EN standards European Standards
ERP Effective radiated power or equivalent radiated power
ESA European Space Agency
ESD Electrostatic Sensitive Device or ElectroStatic Discharge
ESR Equivalent Series Resistance
ETSI European Telecommunications Standards Institute
F Farad
FAA Federal Aviation Administration
FCC Federal Communications Commission
FET Field Effect Transistor
FFT Fast Fourier Transform
FM Frequency Modulation
GFCI Ground Fault Circuit Interrupter
GHz giga Hertz
GND Ground
GPIB General Purpose Interface Bus
GPS Global Positioning System
HF High Frequency
H-Field Magnetic Field
HPIB Hewlett Packard Interface Bus
HVPS High Voltage Power Supply
Hz Hertz (frequency in cycles per second)
I Current
IC Integrated Circuit
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
I\O Input/Output
IR Infrared
JFET Junction Field Effect Transistor
JIS Japanese Industrial Standard
kHz Kilo Hertz (1000 cycles per second)
KW Kilo Watts
KWH Kilo Watt Hours
L Inductance
LAN Local Area Network
LC Inductance and Capacitance
LCD Liquid Crystal Display
LED Light Emitting Diode
LF Low Frequency
LO Local Oscillator
LW Long Wave
M Meters
mAH milliAmpere-Hour
MB MegaBytes
MHz MegaHertz (million cycles per second)
MIL Military
MIL-STD Military Standard
MIL-STD Military Standard
mm millimeters
mW milliwatt
NC Not Connected or Normally Closed
NEG Negative
NEMA National Electrical Manufacturers Association
nF NanoFarad
NiCad Nickel Cadmium
NiMH Nickel Metal Hydride
NIST National Institute of Standards and Technology
NO Normally Open
NPR Noise Power Ratio
NPR Noise Power Ratio
OEM Original Equipment Manufacturer
OPAMP Operational Amplifier
OSHA Occupational Safety and Health Administration
OVP Over Voltage Protection
PA Power Amplifier
PCB Printed Circuit Board
PEP Peak Envelope Power
PG Power Gain
PLL Phase Locked Loop
PM Pulse/Phase Modulation
POV Peak Operating Voltage
PWM Pulse Width Modulation
PWR Power
QA Quality Assurance
QC Quality Control
R Resistance
R&D Research and Development
RADAR RAdio Detection And Ranging
RC Radio Control
RF Radio Frequency
RFI Radio Frequency Interference
RH Relative Humidity
RL Return Loss
S/N Signal to Noise
SD Standard Deviation
SD Standard Deviation
SG Signal Ground
SHF Super High Frequency
SI Signal Integrity
SMD Surface Mount Device
SNR Signal to Noise Ratio
SMT Surface Mount Technology
SP Signal Processor
SPDT Single Pole Double Throw
SPST Single Pole Single Throw
SSR Solid State Relay
SW Short Wave
TC Temperature Coefficient
TDR Time Domain Reflectometry
TEM Transverse ElectroMagnetic
THD Total Harmonic Distortion
TM Transverse Magnetic
TR Transient Response
TRP Total Radiated Power
TV Television
TWT Traveling Wave Tube
uF micro Farad
UHF Ultra High Frequency
UL Underwriters Laboratories
UPC Universal Product Code
USB Universal Serial Bus
UTC Universal Time Code
V Volt
VA Volt Ampere
VAC Volts Alternating Current
VCC Supply Voltage
VCO Voltage Controlled Oscillator
VDC Volts Direct Current
VHF Very High Frequency
VLF Very Low Frequency
VR Voltage Regulator
VSS Supply Voltage
VSWR Voltage Standing Wave Ratio
W Watts
WH Watt Hour
XMT Transmit
XTAL Crystal

Contact Details

A.H. Systems, inc.
9710 Cozycroft Ave.
Chatsworth, CA 91311

P: (818) 998-0223

F: (818) 998-6892

E: Email

Product Showcase

Double Ridge Guide Horn Antenna

Double Ridge Guide Horn Antenna
  • 700 MHz to 18 GHz
  • Precision machined, Rugged Construction
  • Broadband High Frequency

High gain, low VSWR, input handling capability up to 300 watts CW, and rugged design make this EMC horn antenna excellent for both immunity and emissions testing.


Additional Resource

Typical EMC Related Formulas

Typical EMC Related Formulas

This Tech. Note covers frequently used conversion factors, how they are derived, and why they are used. If you need to convert from one series of units to another for any reason, this is the tech. note for you. [more...]

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Antenna Kit - AK-40G

40 GHz General Purpose Antenna Kit
  • 20 Hz to 40 GHz
  • FCC, MIL-STD and CISPR Testing
  • Three Year Warranty

Constantly changing for today's dynamic environment, A.H. Systems presents the proven line of Antenna Kits. Designed to meet the needs of your various testing requirements.