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  2. NMEA 2000 - Wikipedia

    en.wikipedia.org/wiki/NMEA_2000

    [2] [3] NMEA 2000 devices and J1939 devices can be made to co-exist on the same physical network. [4] NMEA 2000 (IEC 61162-3) can be considered a successor to the NMEA 0183 (IEC 61162-1) serial data bus standard. [5] It has a significantly higher data rate (250k bits/second vs. 4800 bits/second for NMEA 0183).

  3. Voltage-controlled resistor - Wikipedia

    en.wikipedia.org/wiki/Voltage-controlled_resistor

    Voltage-controlled resistors are one of the most commonly used analog design blocks: adaptive analog filters, [1] automatic gain-control circuits, clock generators, [2] compressors, [3] electrometers, [4] energy harvesters, [5] expanders, [6] hearing aids, [7] light dimmers, [8] modulators (mixers), [9] artificial neural networks, [10] programmable-gain amplifiers, [11] phased arrays, [12 ...

  4. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

  5. Electrical termination - Wikipedia

    en.wikipedia.org/wiki/Electrical_termination

    Terminating resistor values of 78.7 ohms 2 watt 1% are used on the MIL-STD-1553 bus. At the two ends of the bus, resistors connect between the positive (high) and negative (low) signal wires either in internally terminated bus couplers or external connectorized terminators.

  6. Photoresistor - Wikipedia

    en.wikipedia.org/wiki/Photoresistor

    Three photoresistors with scale in mm Large CdS photocell from a street light. A photoresistor is less light-sensitive than a photodiode or a phototransistor.The latter two components are true semiconductor devices, while a photoresistor is a passive component that does not have a PN-junction.

  7. Surface-mount technology - Wikipedia

    en.wikipedia.org/wiki/Surface-mount_technology

    Surface-mount technology was developed in the 1960s. By 1986 surface mounted components accounted for 10% of the market at most, but was rapidly gaining popularity. [4] By the late 1990s, the great majority of high-tech electronic printed circuit assemblies were dominated by surface mount devices.

  8. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    A backup unit shall be dispatched Code 2 on all Code 5's. Personnel will NOT proceed with Code 5 details until the receiving unit requests some. The unit receiving a Code 5 will request the details when he is in a safe position to do so, which might not be until his backup arrives. CODE SIX

  9. Johnson–Nyquist noise - Wikipedia

    en.wikipedia.org/wiki/Johnson–Nyquist_noise

    Any system in thermal equilibrium has state variables with a mean energy of ⁠ kT / 2 ⁠ per degree of freedom. Using the formula for energy on a capacitor (E = ⁠ 1 / 2 ⁠ CV 2), mean noise energy on a capacitor can be seen to also be ⁠ 1 / 2 ⁠ C ⁠ kT / C ⁠ = ⁠ kT / 2 ⁠. Thermal noise on a capacitor can be derived from this ...

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