Superheterodyne

This is a four-valve seven-stage superheterodyne receiver essentially designed for C.W. reception. ❋ Gary Kamiya (2010)

Here were the somatic messages that fed the cauldron; cell reactions by the incredible billion, organic cries, the muted drone of muscletone, sensory sub-currents, blood-flow, the wavering superheterodyne of blood pH ... all whirling and churning in the balancing pattern that formed the girl's psyche. ❋ Unknown (2010)

We would bet our new Spring hat that if a good U.S. amateur with such a set and an Armstrong superheterodyne could be sent to England, reception of the U.S. ❋ Norman F. Joly (N/A)

Grey-cast, billiard-bald Major Edwin Howard Armstrong, deviser of the frequency modulation system of broadcasting, has twice in his time revolutionized radio-first by the regenerative, or feedback, circuit, which outmoded crystal sets; next by his superheterodyne hookup, the basis for present-day one-dial tuning. ❋ Unknown (2011)

Range in high altitude (more than 100m): RC approx. 1,5km (cheap RC receiver, no DS = double superheterodyne) FPV approx. 3km Half the range in big cities because of jammers! ❋ Unknown (2010)

QST would have run its first articles on the superheterodyne receiver and crystal controlled oscillators. ❋ Unknown (2010)

For frequencies above 40MHz, the actual ADCs doesn't perform sufficient speed so direct-conversion is not possible and hence a superheterodyne RF front end architecture is adopted, to lower the frequency of the received signals to intermediate frequency values (IF) under the actual 40MHz convertible limit. ❋ Unknown (2009)

The direct conversion architecture was originally developed in 1932 as a replacement to superheterodyne receivers.

Analog modulation systems-amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superheterodyne receivers, elements of hardwares realizations of analog communications systems. ❋ Unknown (2009)

(See wikipedia for superheterodyne, intermediate frequency) ❋ Unknown (2009)

SUNNYVALE, CA - June 24, 2009 - Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX7036 very-low-IF, superheterodyne receiver for ASK/OOK data in the 300MHz to 450MHz frequency range. ❋ Unknown (2009)

Operation RAFTER-style intercept is a threat, protect against this form of unintentional radiation MASINT by using optoisolators or other shielded techniques (e.g, waveguides) to bring in the superheterodyne receiver. ❋ Unknown (2008)

(more than 100m): RC approx. 1,5km (cheap RC receiver, no DS = double superheterodyne) FPV approx. 3km Half the range in big cities because of jammers! ❋ Unknown (2010)

The superheterodyne [circuit] uses [a local] [oscillator]. ❋ BlastMaster (2003)