earl - elec
- early radiation
- early warning station
- earphone
- earphones
- earth atmosphere
- earth background
- earth bus
- earth curvature
- earth exploration from space
- earth exploration satellite
- earth fault
- earth jack
- earth noise
- earth radiation budget satellite
- earth receiver
- earth reflection
- earth return beam
- earth rotation axis
- earth sounding from space
- earth terminal
- earth transmits at a frequency
- earth wave
- earth wave reception
- earth's electric fied
- earth's ionosphere
- earth's magnetic field
- earth's pole
- earth's surface
- earth's troposphere
- earth-oriented onboard antenna
- earth-refracted wave
- earth-satellite link
- earth-satellite path
- earth-surface distance
- earth-to-earth communication
- earthing
- earthing is performed by a thick wire
- earthing resistance
- earthing wire
- east longitude
