Connection And Offset; Set The Measurement Frequency; Setting The Amplitude - Anritsu Site Master S331L User Manual

Handheld cable and antenna analyzer featuring classic and advanced modes
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6-3 General Measurement Setup

Connection and Offset

1. Connect the source to be measured to the USB sensor. Use any
required external attenuation or gain so the expected power level
is within specification for the sensor.
2. Press Amplitude then Offset Value. Enter an offset value for any
external attenuation (negative value) or external gain (positive
value). The displayed power will be adjusted by the offset value.
As an example, a power source around 1 Watt (30 dBm) may
cause damage to some sensors. 10 dB of in-line external
attenuation will bring the power level down to approximately
100 mW, within the sensor's range. Adding a Offset Value of
-10 dB will remove the external attenuation from the displayed
power level.

Set the Measurement Frequency

Press the Frequency main menu key then press Measurement
Frequency. Set the frequency of source using the numeric keypad then
select the unit of measure button. Failure to set the frequency will cause
inaccurate measurements.

Setting the Amplitude

The maximum and minimum values of the analog display can be set in
the Amplitude menu. Relative Power is a useful feature to obtain the
power reading with respect to a previous power level.
1. Press the Amplitude main menu key.
2. Press the Max Value submenu key and set the upper scale value.
Press the Min Value submenu key and set the lower scale value.
or
Press the Autoscale submenu key to adjust the range
automatically. The current power level will be centered with
Min Value automatically set at 90% of the current power and
Max Value automatically set at 110% of the current power. Refer
to
Figure 6-3 on page
6-4
6-5.
PN: 10580-00321 Rev. M
High Accuracy Power Meter
S331L UG

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