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  2. AN/ARC-5 - Wikipedia

    en.wikipedia.org/wiki/AN/ARC-5

    The adapter under the Navy nomenclature system is the ZB-series. The identical unit under JAN nomenclature is the AN/ARR-1. This system was used by both the Navy extensively and the Army much less so. To put the system into operation on the aircraft, the beacon band receiver would be replaced in the rack by the broadcast band receiver.

  3. AC/DC receiver design - Wikipedia

    en.wikipedia.org/wiki/AC/DC_receiver_design

    The introduction of AC/DC circuitry allowed a single model to be used on either AC or DC mains as a selling point, [2] and some such models added "Universal" to their name [3] (such sets usually had user-settable voltage tapping arrangements to cater for the wide range of voltages). [4] The first ever AC/DC design of radio was the All American ...

  4. SCORE (software) - Wikipedia

    en.wikipedia.org/wiki/SCORE_(software)

    In 1988, Passport Designs sent their programmer Perry Devine to work with Smith to make the program more user-friendly. [1] They also hired professional engraver William Holab (music editor at G. Schirmer, Inc. [16]) to rewrite the manuals, resulting in the release of version 3.0 in 1990. [14]

  5. Spectral band replication - Wikipedia

    en.wikipedia.org/wiki/Spectral_band_replication

    The SBR idea is based on the principle that the psychoacoustic part of the human brain tends to analyse higher frequencies with less accuracy; thus harmonic phenomena associated with the spectral band replication process needs only be accurate in a perceptual sense and not technically or mathematically exact.

  6. Radio receiver design - Wikipedia

    en.wikipedia.org/wiki/Radio_receiver_design

    The term radio receiver is understood in this article to mean any device which is intended to receive a radio signal in order to generate useful information from the signal, most notably a recreation of the so-called baseband signal (such as audio) which modulated the radio signal at the time of transmission in a communications or broadcast system.

  7. Atmel AVR instruction set - Wikipedia

    en.wikipedia.org/wiki/Atmel_AVR_instruction_set

    LPM instructions zero-extend the ROM address in Z; ELPM instructions prepend the RAMPZ register for high bits. This is not the same thing as the more general LPM instruction; there exist "classic" models with only the zero-operand form of ELPM (ATmega103 and at43usb320). When auto-increment is available (most models), it updates the entire 24 ...

  8. Sequencing batch reactor - Wikipedia

    en.wikipedia.org/wiki/Sequencing_batch_reactor

    Sequencing batch reactors (SBR) or sequential batch reactors are a type of activated sludge process for the treatment of wastewater. SBRs treat wastewater such as sewage or output from anaerobic digesters or mechanical biological treatment facilities in batches.

  9. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    Laser engraving can also be used to create works of fine art. Generally, this involves engraving into planar surfaces, to reveal lower levels of the surface or to create grooves and striations which can be filled with inks, glazes, or other materials. Some laser engravers have rotary attachments which can engrave around an object.