E: Difference between revisions
(added electron tube) |
m (→E) |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 14: | Line 14: | ||
'''[http://en.wikipedia.org/wiki/Vacuum_tube Electron Tube]''' : (Also known as an '''Vacuum Tube''' or a '''Thermionic Valve'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space. | '''[http://en.wikipedia.org/wiki/Vacuum_tube Electron Tube]''' : (Also known as an '''Vacuum Tube''' or a '''Thermionic Valve'''). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space. | ||
'''Elmer''' : Slang for a person who helps newcomers get started in amateur radio. | '''Elevation''' (1) : The angle that an antenna - often a beam - makes with the horizontal. | ||
'''Elevation''' (2) : How high an object/place/station is above sea level. Same as ASL (Above Sea Level) | |||
'''[[Elmer]]''' : Slang for a person who helps newcomers get started in amateur radio. | |||
'''[[Moonbounce (EME) | EME]]''' : '''E'''arth '''M'''oon '''E'''arth - bouncing a signal off the moon to a remote station that would not normally be accessible. | '''[[Moonbounce (EME) | EME]]''' : '''E'''arth '''M'''oon '''E'''arth - bouncing a signal off the moon to a remote station that would not normally be accessible. | ||
Latest revision as of 07:39, 15 April 2014
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 - 9 |
E
Earth : A circuit connection to a ground rod driven into the ground or system of wires buried below the surface of the ground.
EIRP : Effective Isotropic Radiated Power. The sum of transmitted power and antenna gain, minus any transmission line losses.
Electromagnetic Waves : The waves emitted by an antenna, having two dimensions, electric and magnetic.
EHF : Extremely High Frequency - from 30GHz to 300GHz
Electron Tube : (Also known as an Vacuum Tube or a Thermionic Valve). A device that creates or modifies an electrical signal through the movement of electrons in a low pressure (vacuum) space.
Elevation (1) : The angle that an antenna - often a beam - makes with the horizontal.
Elevation (2) : How high an object/place/station is above sea level. Same as ASL (Above Sea Level)
Elmer : Slang for a person who helps newcomers get started in amateur radio.
EME : Earth Moon Earth - bouncing a signal off the moon to a remote station that would not normally be accessible.
EMF : Electromotive Force - Voltage.
EMI : Electromagnetic Interference.
ERP : Effective Radiated Power.
eQSL : Electronic QSL - a website for sending and receiving QSL's online.
E-Skip : Propagation through signals being refracted in the E-Layer
Eu : Europe