Anritsu MS2665C - IF1 (ATT), IF2 (AMP) Adjustment

Section 2 MS2665C
2-24
2.2.5.3 IF1 (ATT), IF2 (AMP) adjustment
Required equipment :
(1) 6769B swept frequency synthesizer
(2) ML4803A Power meter
(3) MA4705A Power sensor
(4) IBM PC/AT compatible
Setup :
(1) Connect the spectrum analyzer RF Input to 6769B RF OUTPUT
(2) Connect the spectrum analyzer and the personal computer with RS-232C interface
Procedure :
(1) Turn the spectrum analyzer on, while pushing “0” key.
(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.
[ Mixer harmonic order 1 ]
(4) Set mixing mode to Band 1- :
1) Enter Frequency menu by pressing “Frequency” key, and open its second page with “More” key,
2) Enter Band menu with “F1” key,
3) Set mixing mode to Band 1- by pushing “F3” key.
(5) Set the spectrum analyzer to :
Center frequency, 5.00 GHz
Span, 1 MHz
Set the 6769B output frequency to 5.00 GHz (CW).
(6) Adjust the 6769B output level to make power meter reading -10 dBm at the 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) Enter Cal menu with “Shift + 0” key,
2) Enter Pre-selector Tuning menu with “F6” key,
3) Tune the pre-selector by pushing “F1” key.
(8) Read marker level using peak search function (Press “Peak Search” key), and if maker reading is within -10 dBm ±0.2
dB, skip next procedure.