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7 小時前 · For example, a pulse signal with a duty cycle of 10% and an average power indication of 100 watts would be multiplied by 10 to arrive at a 1KW peak power. The same 10% duty pulse train is 1/10th or the total time period so the average power level would be 10 times less than the peak or -10 dB.
7 小時前 · Overview Antenna tuners are particularly important for use with transmitters. Transmitters are designed to feed power into a reactance-free, resistive load of a specific value: By modern convention 50 Ω (Ohms).[2] [b] If the impedance seen by the transmitter departs from this design value due to improper tuning of the combined feedline and antenna, overheating of the transmitter's final stage ...
7 小時前 · C ( pronounced / ˈsiː / – like the letter c) [6] is a general-purpose programming language. It was created in the 1970s by Dennis Ritchie and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, and protocol ...
1 天前 · John Joseph Nicholson was born on April 22, 1937, in Neptune City, New Jersey, [5] [6] the son of a showgirl, June Frances Nicholson (stage name June Nilson; 1918–1963). [7] [8] Nicholson's mother was of Irish, English, German, and Welsh descent. Nicholson has identified as Irish, comparing himself to the playwright Eugene O'Neill, whom he ...
