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Spektrum is a brand of radio control systems designed for use with hobby radio-controlled cars and aircraft. Spektrum is a division of Horizon Hobby . The R/C hobby in the United States, Japan, and Europe typically used to employ FM radio control in HF and VHF bands such as 27 MHz, 35 MHz, 49 MHz, and 72 MHz.
Xilinx Spartan-6 ELAD FDM-S3 [42] Pre-built 9 kHz – 500 MHz 192 kHz – 24.576 MHz 16 N/A No 122.88 MHz/98.304 MHz USB 3.0 Yes No No ? ELAD FDM-DUO [43] Pre-built 10 kHz – 54 MHz (experimental up to 165 MHz) 192 kHz – 6 MHz 16 ? Yes 122.88 MHz 1/8+1 Embedded system + 3x USB 2.0 Yes No No Xilinx Spartan-6 Elecraft KX3 [44] Pre-built or kit
A radio receiver may be a separate piece of electronic equipment, or an electronic circuit within another device. The most familiar type of radio receiver for most people is a broadcast radio receiver, which reproduces sound transmitted by radio broadcasting stations, historically the first mass-market radio application. A broadcast receiver is ...
The TR-6, covering the 50 MHz (6-meter) amateur band, was also introduced in 1968 and was produced for about six years. Because of their small size, the Drake transceivers were widely used for mobile operation, along with the DC-3 or DC-4 power supplies. In 1965, Drake introduced the matching T-4X transmitter and R-4 receiver. [6]
In 1903, the Spanish engineer Leonardo Torres Quevedo introduced a radio based control system called the "Telekino" [6] at the Paris Academy of Sciences. In the same year, he applied for several patents in other countries. [7] [8] It was intended as a way of testing Astra-Torres airship, a dirigible of his own design, without risking human ...
Three- and four-digit numeral-only systems were maintained by R.C.A., but also adopted by many other manufacturers, and typically encompassed rectifiers and radio transmitter output devices. Devices in the low 800s tend to be transmitter output types, those in the higher 800s are not vacuum tubes, but gas-filled rectifiers and thyratrons , and ...
When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head. In wireless system technologies such as GSM, CDMA, UMTS, LTE, 5G NR this radio equipment is remote to baseband units [1] such as BTS/NodeB/eNodeB/gNodeB or gNB. This equipment is used to extend the coverage of a baseband unit in ...
valve 6 band single conversion AM CW 0.7 1.5 3 6 (6) 19" x 8.75" x 12.5" 14 0 1 [15] AWA AR8 Military .14-20 2RF front-ends superhet 13 4 Bowden cable volume and tune [16] AWA I-C6770 1940 superhet 5 3 [17] AWA C6940 Professional 1940s (.015-.5), 1.4-26 single conversion AM BFO 6 0 1 no [18] AWA I-C8388 Military 10 [19] CAI CR-70 Professional ...