Circuit arrangement for the tank circuit of a high-frequency transmitter output stage operated with frequency shift keying
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United States of America Patent
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Apr 5, 1994
Grant Date -
N/A
app pub date -
Sep 1, 1992
filing date -
Apr 17, 1990
priority date (Note) -
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Abstract
The invention concerns a circuit for the resonant cavity in a frequency-shift HF transmitter output stage, with a first capacitance (2), a first inductance (3) and a first switch (5) for feeding the HF signal to the resonant cavity. To switch the resonant cavity over to resonance with the other transmission frequency, additional capacitance (2a) can be switched in or out of the cavity by means of additional switch means (4).
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