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
conditions below.
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 so that the maximum
modulation is 70%.(WIDE:3.5KHz,NAR:1.75KHz)
Check that the TX S/N in the bandwidth is
as the values below.
WIDE More than 40 dB Over 40dB ANT Con
NARROW More than 34 dB Over 34dB
Adjusting RX
When there is no particular set limits, set
Sensitivity the RX adjustments and signal generator
when checking to the settings below.
Modulation Freq. 1kHz
WIDE ± 3.5 kHz
NARROW ± 1.75 kHz
Set the signal generator in the following
way for wide channels.
Adjust Freq. Near Greatest Lo band F.
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, so that the sensitivity
is at maximum.
