HP-Agilent/Keysight 83545A

The HP 83545A was designed to be used in the 8350 Mainframe
This unit is a RF Sweep Oscillator Plug-in offers high performance 5.9 to 12.4GHz frequency coverage with exceptionally high output power.
In addition, the 83545A provides slope compensation and complete HP-IB programmability.
The output power is internally leveled to at least 17 dB, with power variations less that 0.6 dB.