The HP Model 86290B is designed as a Plug-In for the 8620C mainframe. The mainframe and 86290B Plug-In make up a solid-state sweep signal source with a frequency range of 2.0 to 18.6 GHz. The frequency range is swept in either one continuous band or in three bands. In single band operation, Band 1 sweeps 2.0 to 6.2 GHz, Band 2 sweeps 6.0 to 12.4 GHz, and Band 3 sweeps 12.0 to 18.6 GHz. When Band 4 is selected on the mainframe, the full frequency range of 2.0 to 18.6 GHz is swept continuously. The fundamental frequency of 2.0 to 6.2 GHz is generated by a YIG Tuned Oscillator (YTO). A YTO test signal (typically — 10 dBm) is available at the rear panel AUX OUT connector. A YIG Tuned Multiplier (YTM) provides the frequency range from 6.0 to 18.6 GHz. The RF output of the instrument is controlled by the front panel POWER LEVEL control. Power can be leveled, externally or internally, across the band using a conventional power sampling and feedback technique. The automatic level control (ALC) switch selects the mode of leveling either internal (INT), external crystal (EXT), or power meter (MTR). A front panel EXT INPUT connector and ALC GAIN control are provided to use with an external leveling loop. When the UNLEVELED light is on, it indicates that the leveling loop is open over a portion of the swept band. BNC connectors on the rear panel allow for external GM signal inputs, a 1 V/GHz frequency reference voltage output, and a SEQ SYNC timing signal. Options for the Model 86290B RF Plug-In are available to (1) substitute a rear-panel RF OUTPUT connector and route the EXT INPUT connector to the rear panel and (2) provide a front-panel or rear-panel APC-7 RF OUTPUT connector. The 86290B Option 004 has the RF OUTPUT and ALC EXT INPUT connectors mounted on the rear panel instead of the front panel. Installation information may be obtained from the nearest Hewlett-Packard Field Service Center. Installation of the Option 004 requires the parts listed in Table 1-3. The standard 86290B RF Plug-In uses a Type-N RF OUTPUT connector. The 86290B Option 005 provides an APC-7 OUTPUT connector.