3GHZ信号发生器便宜价格 IFR2041报价 IFR2026Q说明 E4421B甩卖
sLow phase noise: C140 dBc/Hz at 1 GHzComprehensive modulation modes+13 dBm output (+19 dBm optional)0.1 Hz to 500 kHz modulation oscillator

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