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2. Low-noise block downconverter - Wikipedia

   en.wikipedia.org/wiki/Low-noise_block_downconverter

   A universal LNB has a switchable local oscillator frequency of 9.75/10.60 GHz to provide two modes of operation: low band reception (10.70–11.70 GHz) and high band reception (11.70–12.75 GHz). The local oscillator frequency is switched in response to a 22 kHz signal superimposed on the supply voltage from the connected receiver.

3. Breaking capacity - Wikipedia

   en.wikipedia.org/wiki/Breaking_capacity

   Types used in commercial and industrial low-voltage distribution systems are rated to safely interrupt 200,000 amperes. The rating of power circuit breakers varies according to the application voltage; a circuit breaker that interrupts 50,000 amperes at 208 volts might be rated to interrupt only 10,000 amperes at 600 volts, for example.

4. Wideband - Wikipedia

   en.wikipedia.org/wiki/Wideband

   In communications, a system is wideband when the message bandwidth significantly exceeds the coherence bandwidth of the channel.Some communication links have such a high data rate that they are forced to use a wide bandwidth; other links may have relatively low data rates, but deliberately use a wider bandwidth than "necessary" for that data rate in order to gain other advantages; see spread ...

5. Measurement category - Wikipedia

   en.wikipedia.org/wiki/Measurement_category

   Schematic representation of measurement categories. Measurement category is a method of classification by the International Electrotechnical Commission (IEC) [1] of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or industrial).

6. Circuit breaker - Wikipedia

   en.wikipedia.org/wiki/Circuit_breaker

   Power circuit breakers and medium- and high-voltage circuit breakers used for industrial or electric power systems are designed and tested to ANSI or IEEE standards in the C37 series. For example, standard C37.16 lists preferred frame size current ratings for power circuit breakers in the range of 600 to 5000 amperes.

7. List of UWB channels - Wikipedia

   en.wikipedia.org/wiki/List_of_UWB_channels

   DAA is different in that UWB communications continue on the same band, but actually notch out the transmit spectrum around the legacy channel, so that they don't interfere but can make use of the channel. The requirement of DAA was placed on the Band Group 1 spectrum by the E.U. and others in 2006 with an implementation deadline of Dec 31, 2010.

8. Circuit Merit - Wikipedia

   en.wikipedia.org/wiki/Circuit_Merit

   The Circuit Merit system is a measurement process designed to assess the voice-to-noise ratio in wired and wireless telephone circuits, [1] especially the AMPS system, [2] and although its reporting scale is sometimes used as input for calculating mean opinion score, [3] the rating system is officially defined relative to given ranges of voice-to-noise ratios.

9. UWB ranging - Wikipedia

   en.wikipedia.org/wiki/UWB_ranging

   The sub-gigahertz band, which contains only 1 channel and ranges from 249.6 MHz to 749.6 MHz. The low band, which contains 4 channels and ranges from 3.1 GHz to 4.8 GHz. The high band, which contains 11 channels and ranges from 6.0 GHz to 10.6 GHz. The primary time division in UWB systems is structured in frames. Each frame is composed by the ...