Nokia NME-2A Series - Page 12

P.A.M.S.
Technical Documentation
NME–2A
Tuning Instructions
Page 12
Issue 2 05/2000
– When value is OK press
Esc .
– If the change when adjusting TX I was small, then repeat the Whole
adjustment.
– Select option ”TX I and Q d.c. offset” and press
Enter .
– Adjust the level of signal CHF to minimum by varying D/A converter
value with + and – keys.
– When value is OK press
Esc .
– Select option ”Tune Amplitude Difference” and press
Enter .
– Adjust the level of signal CHF+67.7 kHz (902.06771 MHz) to minimum
by varying D/A converter value with + and – keys.
– The amplitude difference between CHF+67.7 kHz and CHF–67 kHz
should be >35 dB.
– When value is OK press Esc .
– Select option ”Tune Phase Difference” and press
Enter .
– Adjust the level of signal CHF+67.7 kHz to minimum by varying D/A
converter value with + and – keys.
– When value is OK press
Esc .
– If the change in ”Tune amplitude difference” was small, then repeat the
adjustment again from ”Tune amplitude difference”.
– Press
Esc key and store new values with Y key.