For example: Agilent E4440A or Anritsu 68369
Noise Com
Noise Com J7108-PCIX
Noisecom J7108-PCIX (J700 Series) Programmable Jitter Noise Generator, 500 MHz
Category: Noise Generator
Noise Com NC346A
Noise Source, 10 MHz to 18 GHz, nominal ENR 6 dB, 3.5 mm(m)
Category: Noise Figure Instruments
Noise Com NC346KA
Noise Com NC346KA is one of our refurbished 0.10 - 40.0 GHz Broadbrand Calibrated Noise Sources
Category: Noise Figure Instruments
Noise Com NC6124-02
Noise Generator, 2 GHz to 4 GHz, 110 dB attenuator in 1 dB steps (two attenuators)**
Category: Noise Generator