Bird Technologies SA-6000EX - Manual (Page 39)

Measure Match Mode
23
Set the Measurement Scale Limits
You can manually set the minimum and maximum values on the Y
(vertical) scale or you can choose Auto Scale and let the instrument
select values that will display the entire trace. You cannot enter val-
ues that are outside of the limits of the instrument (-60 and 0). If you
are unsure of the expected results, set the minimum to –60 dB and
maximum to 0 dB or choose Auto Scale. Auto Scale is available on the
main screen as well as on the mode configure screens. The table below
lists typical worst case values for selected measurements.
1. Turn on the instrument and enter the Measure Match mode (refer
to Select the Measure Match Mode, page 18).
2. Select Frequency (Setting the Measurement Frequency, page 18)
3. Make sure that the instrument is calibrated (refer to Calibration,
page 15).
4. Follow the numbered steps in Fig. 7 to set the scale limits.
Component Return Loss Limits
Antenna at Resonance –14 dB
Connector –25 dB
Jumper –35 dB
Lightning Protector –25 dB
Transmission Line –30 dB