Rcv Crystal Oscillator Frequency Correction - Alcatel MDR-8000 User Manual

RCV CRYSTAL OSCILLATOR FREQUENCY CORRECTION

5.21
See Figure 5 - 26 and follow the procedure to correct the receive frequency of the crystal
oscillator on older versions of the UD-36 ( ) receiver module.
Allow a 1-hour warm-up period for radio and test equipment before starting procedure or
improper frequency adjustment can result.
5-64
CHAN ALM
EYE
CLOSURE
a. SET TO PED.
PED
AFC
NORM
AFC MON
b. CONNECT FREQ COUNTER TO
EYE MON
RSL MON
GND
c. VERIFY CRYSTAL FREQ IS SAME AS
FREQ
CONT
d. SET AFC PED/NORM
RECEIVER
XTAL
MON
RF
IN
LABEL
10.650 GHz RF FREQ
CRYSTAL FREQ
142.0000 MHz
Figure 5 - 26 RCV LO Adjustment
XTAL MON CONNECTOR.
LABEL. IF NOT, ADJUST FREQ CONT
FOR CRYSTAL FREQ.
SWITCH TO NORM.
FREQ
COUNTER
LMW-6090-SM
05/27/02