70621A Preamplifier, 100 kHz to 2.9 GHz 主要技術規格 100 kHz to 2.9 GHz Achieve -156 dBm sensitivity at 2.9 GHz Calibrated data on screen at all times Built-in bypass operation 敘述 Boost the sensitivity of any Keysight 70000 series spectrum analyzer up to 2.9 GHz by 15 to 25 dB. System noise figures can be better than 8 dB at 2.9 GHz. Spurious testing can be reduced from days to hours from the wider bandwidth that is useful due to the better sensitivity. Low-level signals from antennas will become visible as the noise floor is lowered. Broadband signal detection such as pulsed RF or electromagnetic interference is easier with a lower noise figure. Using the preamplifier is easy. Simply install the preamplifier into the mainframe and connect the cable. Whether in bypass mode or preamplifier mode, the system automatically calibrates the display of the analyzer.
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