For example: Agilent E4440A or Anritsu 68369
Noise Com Noise Figure Instruments
Noise Com NC346A
Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB, 3.5 mm(m)
Manufacturer: Noise Com
Noise Com NC346KA
Noise Com NC346KA is one of our refurbished 0.10 - 40.0 GHz Broadbrand Calibrated Noise Sources
Manufacturer: Noise Com