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INTRODUCTION TO RADIO
INTRODUCTION TO RADIO

LDM-1000 LVDT/RVDT Signal Conditioning Module  SPECIFICATIONS
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James McGinley - EE3311 B05
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... Varying the resistor we were able to determine that the maximum possible free running frequency for this circuit to be 361.0 kHz while the minimum possible free running frequency was 5.9 kHz. At the highest and lowest free running frequencies this circuit did not exhibit any distortion. The next mea ...
The other night, a full moon emerged over the flat, wet Louisiana
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ii. general mechanics
ii. general mechanics

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Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
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