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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.
The phase-locked loops in the receiver acquired the transmitted carrier, telemetry subcarrier, and code clock components almost instantaneously for the signal-to-noise ratios predicted to exist at maximum Apollo range and for a radial space-vehicle velocity of 36,000 ft/sec. Range code correlation generally took only a few seconds.
The usefulness of this method as a means to reduce real-life interference problems is often debated, [9] as it is perceived that spread-spectrum clocking hides rather than resolves higher radiated energy issues by simple exploitation of loopholes in EMC legislation or certification procedures. This situation results in electronic equipment ...
An RF receiver module receives the modulated RF signal, and demodulates it. There are two types of RF receiver modules: superheterodyne receivers and superregenerative receivers. Superregenerative modules are usually low cost and low power designs using a series of amplifiers to extract modulated data from a carrier wave.
A remote terminal unit (RTU) is a microprocessor-controlled electronic device that interfaces objects in the physical world to a distributed control system or SCADA (supervisory control and data acquisition) system by transmitting telemetry data to a master system, and by using messages from the master supervisory system to control connected objects. [1]
Aircraft Radio Corporation (ARC) – not to be confused with Aeronautical Radio, Inc. (ARINC) – was a principal pioneer and major manufacturer of avionics for military and commercial aircraft, and later general aviation (light) aircraft, from the 1920s to the 1950s—subsequently acquired and rebranded by a succession of other companies, each of whom changed the official name, of the ...
If you're having problems sending mail, there are a few troubleshooting steps you can take to fix the problem. Restart your computer : If you haven't shut down your computer in a while, we recommend that you begin troubleshooting by restarting your computer.
In telecommunication, a measuring receiver or measurement receiver is a calibrated laboratory-grade radio receiver designed to measure the characteristics of radio signals. . The parameters of such receivers (tuning frequency, receiving bandwidth, gain) can be adjusted over a much more comprehensive range of values than other radio receive