For example: Agilent E4440A or Anritsu 68369
Calibrators
Analogic - Data Precision AN6520
Digi-Cal Thermocouple Calibrator
Manufacturer: Analogic - Data Precision
Weinschel F1116
The Weinschel/Tegam F1116 100 KHz to 100 MHz Temperature Controlled Coaxial RF Power Transfer Standard
Manufacturer: Weinschel
Keysight / Agilent J06-59992A
Time interval calibrator for 5370B ()
Manufacturer: Keysight / Agilent
Keysight / Agilent N4431B
Agilent N4431B RF Electronic Calibration Module, 9 kHz to 13.5 GHz, 4-port
Manufacturer: Keysight / Agilent
Anritsu OSLN50LF
Anritsu OSLN50LF Precision Open/Short/Load, DC to 4 GHz, 42 dB, 50 Ohm, N(m)Anritsu OSLN50LF Precision Open/Short/Load, DC to 4 GHz, 42 dB, 50 Ohm, N(m)
Manufacturer: Anritsu
Rohde and Schwarz XSRM-Z
XSRM Rubidium Oscillator with Frequency Converter
Manufacturer: Rohde and Schwarz
Rohde and Schwarz ZV-Z32
PC 3.5 calibration kit with fixed matches 0 - 26.5 GHz, incl. DCV
Manufacturer: Rohde and Schwarz