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560-97N Series

SWR Autotesters

560-97N Series
This product has been discontinued

The 560-97 Series SWR Autotesters integrate a high directivity bridge, a detector, a low reflection test port, and a precision reference termination. The 560-97 Series units are broadband microwave measurement components that are used with the Model 56100A Scalar Network Analyzer and with Series 54100A Scalar Measurement System for making fixed-frequency and swept-frequency return loss (SWR) measurements. Return loss measurements are used over a wide range of radio and microwave frequencies to check the performance of systems, subsystems, and microwave components such as amplifiers, directional couplers, attenuators, filters, splitters, and terminations.

  • Up to 40 dB directivity
  • 10 MHz to 18 GHz range
  • Test port connectors to fit most measurement applications; avoids use of adapters
Model Directivity


Sensitivity (dB)
Test Port
.01 to 8 GHz 8 to 18 GHz
560-97N50-1 38 0.013 ± 0.08p  0.013 ± 0.12p2 ±1.5

Type N (m)

7.6 x 5 x 2.8 cm
plus connectors

Weight: 340g


Type N (f)


Both models:
Input Port Impedance: 50 Ohms
Insertion Loss (from input to test port): 6.5 dB nominal
Detector Output Polarity: Negative
Output Time Constant: 2 ms
Maximum Power Input: 0.5 watts (+27 dBm)
Cable Length: 122 cm (4ft.)
Temperature range: +25°C ±5°C


1. Where p is the reflection coefficient being measure. Accuracy includes the effects of test port reflections and directivity.
2. Input Connector: Type N Female
3. Plus connectors and cable