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ADJUSTMENT
&
1-2.
TRANSMITTING
(See FIG-2, TABLE-2,
FIG-3, TABLE-3)
Test Equipment
RF Electronic Voltmeter
Frequency Counter
Linear Detector
AF Oscillator
AC Adaptor (DC 9.OV ....... CENTER MINUS)
Dummy Load (50Q)
Unit Condition
a)
b)
c)
d)
e)
f)
*
9)
From the mode mentiond in 1-1, change TEST CH '4' by pushing "PAGE" key.
Disconnect frequency counter from CNI 01, and connect RF electronic voltmetertoCN101
(50Q probe).
Connect IC401 23pin and ground.
TX: "ON"
Tx POWER
Align T201 and T202 to obtain 6.0 * 3.OdBm from read of RF voltmeter.
Tx FREQUENCY
Connect frequency counter to CN 101.
Align CT101 to obtain 30.2250 MHz * 0.5 kHz from the read of frequency counter.
Tx MODULATION
Connect Linear detector to CN1 01.
Connect AF oscillator (1 kHz, –20dBm) to TEL line.
Align VR601 to obtain 2.OkHz f O.1
kHz dev. from the read of linear detector. And confirm at the AF oscillator
to TEL line, 300 Hz, –20dBm: the read of linear detector 1.4kHz f 0.3kHz dev.
3 kHz, –20dBm: the read of linear detector 3.OkHz f 0.5kHz dev.
Tx DATA MODULATION
After Tx modulation
alignment, disconnect DC 9V from the unit and open 18pin (IC401 ) from ground. Then
connect DC 9V to the unit, and push "PAGE" key. (Tx DATA is sent.)
Check the read of linear detector is 3.8kHz t 1.OkHz dev.
After transmitting
alignment,
shori 18pin (IC401 ) to ground.
Adjustment (T-1)
Unit
CN101 (H)
FREQO
RF Electronic
Voltmeter
CN101 (E)
T
50Q dummy
~
(FIG-2)
STEP
CONDITION
ADJUST
ADJUSTED VALUE
SPECIFICATION
1. Tx LEVEL
CARR side
6.OdBm
6.OdBm + 3dB
2. Tx FREQUENCY
FREQ side
CT101
30.2250 MHz
30.2250 MHz * 0.5kHz
(TABLE-2)
-14-
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