
ADJUSTMENT
Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point
Preparation for When there is no particular set limits, set
Checking Modula- the modulation analyzer for adjustment and
tion Adjustment checking as below.
HPF OFF
LPF 20kHz
De-Emphasis OFF
Detector (P±P)/2
Connect the modulation analyzer set at the
above conditions, through the attenuator to
the antenna terminal. Connect an oscillo-
scope, distortion meter and a level meter to
the modulation analyzer’s detection output
terminal.
Connect a millivolt meter or a 600 ohm out-
put impedance CR oscillator to the trans-
ceiver’s mic terminal.
Deviation Set the CR oscillator to a 1 kHz sine wave,
Adjustment 150mVrms, and input from the external mic
terminal. Set the transceiver to TX and use the
adjustment software to adjust to the following values.
Adjust.Freq. NearCenterFrequency ±4.05~ Adj.Soft ANTCon
WIDE ± 4.10 ± 0.05 kHz ±4.15kHz
NARROW ±2.10 ±0.05kHz ±2.05~
±2.15kHz
Modulation Balance Use the adjustment software to adjust the
Adjustment modulation analyzer’s detection output horizontal
line so that it becomes a straight line as below
Adjust.Freq. NearCenterFrequency
Detection Adj.Soft ANTCon
Output