Input VSWR

The Input VSWR test measures the input return loss of the instrument and verifies that it meets the published specifications. This test uses a network analyzer to measure worst case return loss in two frequency ranges. The points measured are the worst case return loss (the largest measured signal) in each frequency range.

The input return loss values are converted to VSWR and checked against the specifications.

Click here for troubleshooting.

Related adjustments: None

Required Test Equipment

Test Equipment

Recommended Model Number
(see main equipment list for alternative models)

Network analyzer

N5245B

Calibration kit, 50 Ω

85054B

Cable, Type-N

11500C

Connection Setups

Cable calibration

Open calibration

Short calibration

Load calibration

Test setup