70910A Wide Bandwidth RF Section, 100 Hz to 26.5 GHz

主要技術規格
Provides RF coverage from 100 Hz to 26.5 GHz
Preselector bypass for wider bandwidths
Compatible with external mixers, including the Keysight 11974 series
Rear panel output include the 3 to 6.6 GHz LO and two IF outputs at 321.4 MHz and 21.4 MHz
敘述
The 70910A RF section provides coverage from 100 Hz to 26.5 GHz. This RF section is used in the 71209A Opt 001 spectrum analyzer and the 71910A wide bandwidth receiver. Diode-pair mixing provides lower conversion loss, allowing the spectrum analyzer to have sensitivities that compete with fundamentally mixed designs. The sensitivity is also improved by the use of a built-in preamplifier before the first mixer (in the microwave path). The 70910A adds the switchable bypass path around the yig-tuned filter (YTF) for making very sensitive measurements when extraneous signals are not a problem. Also, the 70910A ensures that the minimum bandwidth through the YTF is greater than 36 MHz a