Antenna measurement

No data

SWR AT MARKER

—:1

— MHz

IMPEDANCE— Ω

RETURN LOSS— dB

Frequency markerMarker MHz

No measurement yet

MINIMUM SWR

SWR ≤ 2 BANDWIDTH—

SWR 2 EDGES—

Return loss, impedance & Smith

Return loss dB

Impedance Ω · solid R / dotted X

Smith 50 Ω · dashed circle SWR 2

—

Markers & antenna analysis

Marker follows

Find peaks

ReadingFind

ProminenceResults

Chart

Transmission & filters

Filter

SWR limit

Remove cable delay

Port 1 delay · nsPort 2 delay · ns

Removes delay from a lossless cable. Keeps the original measurement.

Remove cable or adapter from S11

Measured cable / adapter S2P

Port 1 faces the VNA; port 2 faces the antenna.

Cable distance & time domain

Velocity factorResponse

Window

Keep a distance range

From · mTo · m

Keeps reflections in this range. Preserves the original measurement.

Chart exports & display

ChartAppearance

Sweep

Center frequency MHz Span kHz

Sweep options

Pause sPoints per segment

SegmentsAveragesTrim each end

No calibration selected.

Frequency bands

Name

Start · MHzStop · MHz

Spoken SWR

Mute

Voice options

Browser voice

Saved measurements

Measurement

Add reference overlay

Restore backup

Help

For USB, use Chrome or Edge on desktop. Close other apps using the device.

Calibrate at the antenna end of the cable. Recalibrate if the device, cable or adapters change. Never connect a transmitter.

Export a backup before clearing browser data.

Sweeps pause when this tab is hidden.

Antenna measurement

Calibrate at the cable end

Save measurement

Confirm