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SECTION 4
ELECTRICAL ADJUSTMENTS
BASE UNIT TX ADJUSTMENT
1. Transmit Mode Setting Procedure
1. Start up the test mode according to the “Manual Test Mode
Startup Procedure”. (See page 9)
2. Press the PAGE key (HANDSET LOCATOR) and make the
channel settings. (Default CH=1)
3. Ground TP201 (RING DET).
2. TX Frequency
Adjustment
Connect the frequency counter to TP406 (ANT), and adjust the
TX frequency by turning CT501.
Standard value : Transmit frequency
±
1kHz
BASE UNIT
BASE UNIT RX ADJUSTMENT
1. Transmit Mode Setting Procedure
1. Start up the test mode according to the Manual Test Mode
Startup Procedure. (See page 9)
2. Press the PAGE key (HANDSET LOCATOR) and make the
channel settings. (Default CH=1)
2. RX Carrier Adjustment
1. Start up the test mode according to the Manual Test Mode.
2. Set the signal generator to Setting1 and the audio analyzer to
DIST. mode. Turn T401 and adjust so that the output level is
near maximum and the DC voltage of TP404 is 1.1 volts.
Check that the output level on the audio analyzer is within the
standard value.
Standard value: 210 to 410 mV.
Also check on an oscilloscope that there is no waveform dis-
tortion on the demodulated signal.
3. RSSI (H) Sensitivity Adjustment
Set the signal generator to Setting 2 and adjust RV401 so that the
RSSI output voltage is 220 mV.
SIGNAL GENERATOR SETTINGS
Setting
Frequency RF Output
Modulation Modulation
No.
(MHz)
(dB
µ
VEMF)
(kHzINT)
Factor
Setting 1
60
1
20kHz
Setting 2
no signal
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Summary of Contents for SPP-N1001
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 4: ... 4 ...
Page 5: ... 5 SPP N1003 ...
Page 48: ...15 SPP N1001 N1003 ...
