** The Medtronic Diabetes Minimed Paradigm series of insulin pumps allow for radio frequency ( RF ) communication.

** RF Audio / Video connector

** Negative RF and negative ACPA gives 0 points

** Low-positive RF or low-positive ACPA gives 2 points

** High-positive RF or high-positive ACPA gives 3 points

** Heterojunction bipolar transistor, up to several hundred GHz, common in modern ultrafast and RF circuits

** Only player in major league history to play more than 500 games at five different positions – 1B ( 939 ), LF ( 671 ), 3B ( 634 ), 2B ( 628 ), RF ( 595 )

** RF transmission line

** Radiophiles go toward RF sources.

** Radiophobes go away from RF sources.

** Microwave, RF, SATCOM and Antenna Products

** 1 RF out

** RF modulator to TV antenna connector

** Radio frequency ( RF ) tags for people and valuables

** RF communications satellite downlinking – Band detection, carrier detection and IRD tuning, etc.

** RF transmitter maintenance-IOT UHF transmitters, solid state VHF transmitters, solid state MF transmitters ( AM radio ), tube type VHF and MF transmitters.

** RF hazard mitigation

** UTMOST III SPICE modeling software generates SPICE models for analog, digital, mixed-signal, and RF applications.

** UTMOST IV optimization module provides a database-driven environment for the generation of SPICE models and macro-models for analog, mixed-signal and RF applications.

** SmartSpiceRF is a harmonic balance based RF simulator.

** Internal RF modulator

** RF connectors, a type of electrical connectors designed to work at radio frequencies

** SAR — The search and rescue ( SAR ) buoy is designed to operate as a floating RF beacon.

** Microwave cavity or RF cavity, a cavity resonator in the Radio Frequency range, for example used in particle accelerators

** Domestic: extensive microwave radio relay links ; domestic satellite system with 3 earth stations

** international: country code-56 ; submarine cables provide links to the US and to Central and South America ; satellite earth stations-2 Intelsat ( Atlantic Ocean ) ( 2007 )

** domestic: interisland microwave system and HF radio police net ; domestic satellite communications system

** international: satellite earth stations-2 Intelsat ( 1 Indian Ocean and 1 Pacific Ocean )

** International telephone system: landline connections to Latvia and Poland ; major international connections are to Denmark, Sweden, and Norway by submarine cable for further transmission by satellite

** Freeview digital free satellite with a dozen SD channels, with SD feeds of the terrestrial HD freeview channels.

** international: country code-82 ; 10 fiber-optic submarine cables-1 Korea-Russia-Japan, 1 Korea-Japan-Hong Kong, 3 Korea-Japan-China, 1 Korea-Japan-China-Europe, 1 Korea-Japan-China-US-Taiwan, 1 Korea-Japan-China, 1 Korea-Japan-Hong Kong-Taiwan, 1 Korea-Japan ; satellite earth stations-3 Intelsat ( 1 Pacific Ocean and 2 Indian Ocean ) and 3 Inmarsat ( 1 Pacific Ocean and 2 Indian Ocean )

** Ground track, the path on the surface of the Earth directly below an aircraft or satellite

** PoSAT-1 ( the first Portuguese satellite ) is launched on board French rocket Ariane 4.

** Space Age – Sputnik program: The Soviet Union launches Sputnik 1, the first artificial satellite to orbit the earth.

** NASA launches Syncom 2, the world's first geostationary ( synchronous ) satellite.

** The United States launches the first weather satellite, TIROS-1.

** United States launches navigation satellite Transit I-b.

** Sputnik program: The Soviet Union launches the satellite Sputnik 5, with the dogs Belka and Strelka ( the Russian for " Squirrel " and " Little Arrow "), 40 mice, two rats and a variety of plants.

** A Soviet satellite containing live animals and plants is launched into orbit.

** The Pioneer 10 spacecraft is launched from Cape Kennedy, to be the first man-made satellite to leave the solar system.

** MacDonald family massacre: Jeffrey R. MacDonald kills his wife and children at Fort Bragg, North Carolina, claiming that drugged-out " hippies " did it. February 11: Ōsumi ( satellite ) launched

** NASA's Explorer 1, the first American satellite and Explorer program spacecraft, reenters Earth's atmosphere after 12 years in orbit.

** The United Kingdom becomes the 6th nation to launch a satellite into orbit, the Prospero X-3, using a Black Arrow carrier rocket.

** The Early Bird communications satellite is launched.

** Soviet satellite Cosmos 954 burns up in Earth's atmosphere, scattering debris over Canada's Northwest Territories.

** Charon, a satellite of Pluto, is discovered.

** The U. S. scientific satellite Seasat is launched.

** The Solar Maximum Mission research satellite, launched in 1980, crashes back to earth.

** The Envisat environmental satellite successfully reaches an orbit 800 km above the Earth using an Ariane 5 on its 11th launch, carrying the heaviest payload to date at 8, 500 kg.