Common abbreviations used in the broadcast and other industries.
| Abbrev | - | Description |
| ≈ | - | approximately |
| ± | - | plus or minus |
| > | - | greater than |
| ≥ | - | greater than or equal to |
| < | - | less than |
| ≤ | - | less than or equal to |
| β | - | Beamwidth (Greek letter Beta) |
| Ω | - | ohms (impedance) |
| ° | - | Degrees (angle or temperature) |
| °C | - | Degrees Celsius |
| °F | - | Degrees Fahrerhigh |
| °K | - | Degrees Kelvin |
| A | - | Amperes |
| AGL | - | Above Ground Level |
| Al | - | aluminum |
| AM | - | Amplitude Modulation |
| Ant | - | Antenna |
| ATSC | - | Advanced Television System Committee (digital TV standard) |
| AWG | - | American Wire Gauge |
| B | - | receiver noise bandwidth in Hertz. |
| c | - | Speed of Light (299,792,458 m/s) |
| CA | - | Class A (low power broadcast) |
| CD | - | Class A Digital (low power broadcast) |
| Ch | - | channel |
| Cu | - | copper |
| D | - | Digital Class A (low power broadcast) |
| dB | - | decibels power difference (base 10 Log scale) |
| dBD | - | antenna gain: decibels with respect to a standard half wave dipole antenna with a gain of 2.15 dBi. |
| dBi | - | antenna gain: decibels with respect to a lossless isotropic radiator. |
| dBm | - | power decibels above or below 1 milliwatt |
| dBW | - | power decibels above or below 1 watt |
| DT | - | Digital Television full power class |
| DTv | - | Digital Television |
| DVD | - | Digital Video Disc or Digital Versatile Disc |
| ERP | - | Effective Radiated Power |
| F | - | Farad (capacitance) |
| FCC | - | Federal Communications System |
| FM | - | Frequency Modulation |
| fps | - | frames per second |
| Freq | - | Frequency |
| ft | - | feet |
| GPS | - | Global Positioning System |
| H | - | Henry (inductance) |
| HD | - | High Definition |
| HDTV | - | High Definition Television |
| HDMI | - | High Definition Multimedia Interface (Video Data Communication) |
| Hz | - | Hertz (Cycles per Second) |
| in | - | inch |
| in2 | - | square inches |
| k | - | Boltzmann's Constant = 1.380 622 x 10-23 Watt*sec/°K. |
| km | - | kilometers (1000 meters) |
| kW | - | kilowatts (1000 Watts) |
| Lat | - | Latitude |
| Lng | - | Longitude |
| LD | - | low power digital (broadcast) |
| LP | - | low power (broadcast) |
| m | - | meters |
| m2 | - | square meters |
| mi | - | miles |
| mm | - | millimeter (0.001 Meters) |
| mW | - | milliwatts (0.001 Watts) |
| MHz | - | megahertz (1,000,000 Hertz) |
| MSL | - | Mean (average) Sea Level |
| NEC | - | National Electrical Code |
| NF | - | receiver noise figure (receiver noise) |
| NOAA | - | National Oceanic & Atmospheric Administration |
| ns | - | nanoseconds (0.000 000 001 sec) |
| NTSC | - | National Television System Committee (analog TV standard) |
| OTA | - | Over-the-Air |
| PPI | - | pixels per inch (Resolution) |
| Pwr | - | Power |
| RG | - | Radio Guide (coax cable designation) |
| RF | - | Radio Frequency |
| RV | - | Recreational Vehicle |
| S/N | - | Signal-to-Noise ratio |
| SD | - | Standard Definition (Resolution) |
| s | - | seconds |
| sec | - | seconds |
| T | - | temperature |
| TV | - | Television full power class |
| UHD | - | Ultra High Definition (Resolution) |
| UHF | - | Ultra High Frequency (300 - 3000 MHz) |
| µW | - | microwatts (0.000 001 Watts) |
| V | - | Volts |
| Vac | - | Alternating Current RMS (Root Mean Square) Voltage. |
| VCR | - | Video Cassette Recorder |
| VGA | - | Video Graphics Array (video data communication) |
| VHF | - | Very High Frequency (30 - 300 MHz) |
| VSWR | - | Voltage Standing Wave Ratio (a measure of unwanted signal reflections) |
| W | - | Watts (power) |
| yd | - | Yards |
| xmit | - | Transmit |
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Abbreviations |