ADJUSTMENT
Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point
Checking TX S/N Connect a linear detector via the attenuator
to the antenna terminal, and set to the
following conditions.
HPF 50 Hz
LPF 20 kHz
De-emphasis OFF
Level Meter (P-P)/2
Apply a 1 kHz signal from the low frequency
oscillator to the mic terminal, and
transmit, then adjust the low frequency
oscillator output level that the
deviation is 70%(WIDE:3.5KHz,NAR:1.75KHz)
of the maximum permissible deviation.
Check that the TX S/N in the range of the
Frequency coverage is more than
the following values.
WIDE More than 40 dB Over 40dB ANT Con
NARROW More than 34 dB Over 34dB
Adjusting RX during the measurements set the signal
Generator as follows when there is no
special requirements.
Modulation Freq. 1kHz
WIDE ± 3.5 kHz
NARROW ± 1.75 kHz
Turn the transceiver wide channel and set
the signal generator as follows.
Adjust Freq. The lowest frequency
SG Input level +20 dBu
Connect an 4 ohm non-inductive load and Adj.Soft RSSI line
a distortion meter to the external speaker
terminal. Adjust BPF (T1) ~ (T4) with the
adjustment software to gain the maximum
sensitivity.