Search results
Results from the WOW.Com Content Network
Apollo Command/Service Module scimitar antenna The Block II Apollo command and service module carried a pair of elliptical VHF scimitar antennas on the Service Module walls. The antenna's scimitar shape wasn't externally visible, since it had to be covered by a shroud for aerodynamic purposes.
Hardware platforms are built with universal devices such as switches and routers, based on mature technologies and low costs. It uses a module-based design and supports customizable system functions. The core network is interoperable with different systems such as DMR (Digital Mobile Radio) and Tetra (Terrestrial Trunked Radio).
A service module (also known as an equipment module or instrument compartment) is a component of a crewed space capsule containing a variety of support systems used for spacecraft operations. Usually located in the uninhabited area of the spacecraft, the service module serves a storehouse of critical subsystems and supplies for the mission such ...
Lafayette Radio Electronics, QSL card for use by headquarters staff amateur radio operators. "Wholesale Radio Service" was established in the early 1920s by Abraham Pletman in New York City. Radios sold by the company were trademarked “Lafayette” in July 1931.
An SoC module is the same as a transceiver module, but it is often made with an onboard microcontroller. The microcontroller is typically used to handle radio data packetisation or managing a protocol such as an IEEE 802.15.4 compliant module. This type of module is typically used for designs that require additional processing for compliance ...
Some details about the Turkish Embassy Radio system : The transmitter was the old driver CTD 500 with SSA 400 or SSA 1000. Receiver was the CR 300, two of them in the cabinet. The intention was to use space diversity. No place for two "real" Antennas, the second receiver got an active antenna AA300. Each receiver had a FSK demodulator, CRFD 1000.
The company was founded in 1943 by radio design engineer Robert L. Drake. The company began as a manufacturer of low pass and high pass filters for the government and amateur radio market, and after World War II, produced amateur radio transmitters and receivers and communications receivers for maritime mobile service. [1] [2]
Swan merged with Cubic Corporation in 1967, and Johnson managed Swan as its subsidiary until 1973. Johnson founded Atlas Radio in 1974. Atlas produced smaller solid state radios for mobile communications from vehicles of all types. [3] Many Swan radios remain in service today, restored and operated by vintage amateur radio enthusiasts. [2]