4-23
(10) Set IF Gain-1 and IF Gain-2 values to 0.
1) Press “F4” (IF Gain-1) + “0” + “enter” keys and on display appears a writing “IF Gain1 set to 0”.
2) Press “F5” (IF Gain-2) + “0” + “enter” keys and on display appears a writing “IF Gain2 set to 0”.
(11) Adjust IF Gain 1 and IF Gain 2 so that marker reading becomes -12 dBm ±0.5 dB.
• If the level is lesser than this, the level can be raised by increasing the Number of IF Gain-2 (F5) from 0 to 255 in
single whole numbers.
Press “F5” + “number (0 to 255)” + “enter” keys.
• If the level is greater than this, the level can be lowered by increasing the Number of IF Gain-1 (F4) from 0 to 255
in single whole numbers.
Press “F4” + “number (0 to 255)” + “enter” keys.
[ Band 1+ n=1 ]
(12) Set Manual Band to Band 1+ n=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+ n=1 by pushing “F4” (Manual Band 1+ n=1) key.
(13) Set the spectrum analyzer to :
Center frequency : 6.75 GHz
Span : 200 MHz
Set the 6769B output frequency to 6.75 GHz (CW).
(14) 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.
(15) Tune the spectrum analyzer’s pre-selector (refer to procedure (7)).
(16) Enter RF/Micro Conv maintenance menu, and open its 6th page (refer to procedure (9)).
(17) Set IF Gain-1 and IF Gain-2 values to 0 (refer to procedure (10)).
(18) Adjust IF Gain 1 and IF Gain 2 so that marker reading becomes -12 dBm ±0.5 dB (refer to procedure (11)).
[ Band 1+ n=2 ]
(19) Set Manual Band to Band 1+ n=2 :
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 and open its second page with “more” key.
3) Set manual band to Band 1+ n=2 by pushing “F2” (Manual Band 1+ n=2) key.
(20) Set the spectrum analyzer to :
Center frequency : 11.1 GHz
Span : 200 MHz
Set the 6769B output frequency to 11.1 GHz (CW).
4.2 Troubleshooting
To Next Page
Loading...
