Anrtisu Site Master S331D - Preamplifier Measurement Example

Preamplifier Measurement Example
This section provides an overview of how to detect a low-level signal with the help of the
preamplifier of a S332D Site Master.
Required Equipment
q
S332D Site Master
q
Test Port extension cable, Anritsu 15NNF50 – 1.5C
q
A signal source (Anritsu 69xxxB Synthesized Signal Generator or equivalent)
Procedure
Step 1.
Press the MODE key and use the Up/Down arrow key to select the
Spectrum
Analyzer
mode. Press the ENTER key to select.
Step 2. Connect the RF output of the signal source to the
RF In port of the S332D.
Step 3. Press the
Center soft key. Enter the center frequency of the measurement using
the Up/Down arrow key or the keypad. Select the
GHz, MHz, kHz,orHz soft key
to accept the center frequency input.
Step 4. Press the
Span soft key and use the Up/Down arrow key or the keypad to enter a
span of 1 MHz.
Step 5. Set the signal source output level to –120 dBm.
Step 6.
Press the AMPLITUDE key and select the
Ref Level soft key to set the reference
level to –80 dBm.
Step 7. Press the
Scale soft key and set the scale to 10 dB/division.
Step 8. Press the
Atten/Preamp soft key and set the attenuation to Auto and press the
Back soft key.
Step 9.
Press the MEAS/DISP key, the
Trace soft key, and the Detection soft key and
set the detection mode to
Positive Peak.
Step 10. Press the
Back soft key twice, then the Bandwidth soft key. Select the RBW Man
-
ual
soft key and set the RBW to 100 Hz.
Step 11. Select the
VBW Auto soft key.
Step 12.
Press the AMPLITUDE function hard key.
Step 13. Select the
Atten/Preamp soft key, then the Preamp Control Manual soft key.
Press the
Preamp On/Off soft key to turn the preamplifier on or off.
5-4
Chapter 5 Spectrum Analyzer Measurements