Anritsu MS2665C - IF Gain-1 (ATT), if Gain-2 (AMP) of Internal Mixer Band Adjustment

Section 3 MS2667C
3-26
3.2.5.3 IF Gain-1 (ATT), IF Gain-2 (AMP) of Internal Mixer Band adjustment
Required equipment :
(1) 6769B swept frequency synthesizer
(2) ML2437A Power sensor
(3) MA2444A Power sensor
Setup :
(1) Connect RF Input of the spectrum analyzer to RF OUTPUT of 6769B.
Procedure :
(1) Keep key “0” depressed while switching on the spectrum analyzer.
(2) Initialize the spectrum analyzer :
1) Enter Preset menu with “preset” key.
2) Initialize the spectrum analyzer completely with “F1” key.
(3) Calibrate the spectrum analyzer using its internal calibration function :
1) Enter Cal menu with “Shift” key and “0” key.
2) Calibrate the spectrum analyzer by pushing “F1” key.
[ Band 1- ]
(4) Set Manual Band to Band 1- :
1) Enter Frequency menu by pushing “Frequency” key, and open its second page with “more” key.
2) Enter Internal mixer Band menu with “F1” (Internal Mix) key.
3) Set manual band to Band 1- by pushing “F3” (Manual Band 1-) key.
(5) Set the spectrum analyzer to :
Center frequency : 4.8 GHz
Span : 200 MHz
Set the 6769B output frequency to 4.8 GHz (CW).
(6) Adjust the 6769B output level to make power meter reading -10 dBm at end of cable feeding the signal to the spectrum
analyzer, and then connect the cable to the spectrum analyzer’s RF Input.
(7) Tune the spectrum analyzer’s pre-selector, using its pre-selector auto tune function :
1) Press “frequency” key.
2) Carry out pre-selector Auto Tune function by pushing “F4” (Pre-selector Auto Tune) key.
(8) Take the marker to signal peak by pushing “Peak Search” key.