Subj : Ham Radio Glossary (E) To : All From : Daryl Stout Date : Sat Jul 06 2019 07:17 am From QRZ.Com, the Icom handout, and Part 97 Of The FCC Rules - Ham Radio Glossary - An overview of amateur radio terms. Earth station An amateur station located on, or within 50 km of the Earth's surface intended for communications with space stations or with other Earth stations by means of one or more other objects in space. EAS Emergency Alert System. Formerly the Emergency Broadcast System. A system where at first an attention tone is transmitted over all stations, add the second tone, followed with specific instructions regarding the receivable frequency in the local, regional, or national emergency. The EAS is activated during severe weather warnings, chemical spill incidents, dam breaks, etc. Previously known as the Emergency Broadcast System (EBS). EBS Emergency Broadcast System. See Emergency Alert System. EEPROM Electronically Erasable and Programmable Read Only Memory EHF (extremely high frequency). The frequency range 30-300 GHz. EME "Earth-Moon-Earth" communication; moonbounce; using the moon as a reflector to "bounce" your signal back down to Earth. For a complete resource, please see http://www.nitehawk.com/rasmit/ws1_1.html Emergency Alert System Also known as EAS. Formerly the Emergency Broadcast System (EBS). A system where at first an attention tone is transmitted over all stations, add the second tone, followed with specific instructions regarding the receivable frequency in the local, regional, or national emergency. The EAS is activated during severe weather warnings, chemical spill incidents, dam breaks, etc. Emergency Broadcast System See Emergency Alert System. EMI Electro-Magnetic Interference. Often called RFI (Radio Frequency Interference). Emission Transmission of a signal. Encryption Transmitting cryptic form so that only certain people understand what has been sent. This is used for telecommand information to satellites, etc. EQSL "Electronic QSL"...a modern version of the QSL Card to confirm a contact, usually done via the Internet, such as at http://www.eqsl.cc and at the ARRL Logbook Of The World (LoTW), at http://www.arrl.org/lotw . Note that for ARRL awards, you must use the LoTW to confirm your contacts. ERP "Effective Radiated Power"; the power supplied to an antenna multiplied by the antenna gain in a given direction (if the direction is not specified, the direction of maximum gain is assumed). External RF Power Amplifier A device capable of increasing power output when used in conjunction with, but not an integral part of, a transmitter. Extra See "Amateur Extra". Eyeball Face-to-face meeting, as in "eyeball QSO" (to speak to one another in person). --- SBBSecho 3.07-Win32 * Origin: The Thunderbolt BBS - tbolt.synchro.net (801:1/2)