Debion : The R17050 is an auto matching calibration kit (3.5 mm connectors) for use with the R3765G and R3767G network analyzers. Calibration can be carried out with simple key operations ; simply select the type of calibration. After calibration, confirmation of measurement accuracy can be carried out simultaneously with the measurement, avoiding any error introduced by mis-operation or faults, and making it easy for anyone to obtain highly accurate measurements.
This unit has the following features:

Frequency Range : 40 MHz to 8 GHz : 2 port type (R17050)
Operating Temperature Range : 20°C to 30°C
Measurement Accuracy : ±0.05 dB (typical, R17050)
Temperature Coefficient : 0.002 dB/°C (typical)
Control : Network analyzer serial I/O (RS232C)
Power Supply : Supplied by network analyzer probe power
Impedance: 50 Ohms
Connector Type: 3.5 mm
This auction includes the wooden case, a probe power cord, and a RS-232 cable