21
SPP-S2720
8.
RX Current Measurement
Setting:
Procedure:
1. Connect equipments as the figure above.
2. Set the base unit to test mode, press the
[4]
key of the base
unit to display “TEST D”, and press the
[4]
,
[6]
keys to set TX
off and slave mode.
3. Set the handset to test mode, then press the
[4]
key of the hand-
set to display “TEST D”, and press the
[6]
key to set master
mode. (TX on)
4. Check that the value of ammeter is 235 to 295 mA.
9.
TX Current Measurement
Setting:
Procedure:
1. Connect equipments as the figure above.
2. In the test mode idling status, press the
[3]
key to display
“TEST C”, and press the
[1]
,
[8]
keys to set TX on and chan-
nel 28.
3. Check that the value of ammeter is 320 to 380 mA.
10.
Frequency Deviation Measurement
Setting:
Procedure:
1. Connect equipments as the figure above.
2. In the test mode idling status, press the
[3]
key to display
“TEST C”, and press the
[1]
,
[8]
keys to set TX on and chan-
nel 28.
3. Check that the value of frequency counter is 2440.464 to
2440.536 MHz.
6.
Between Microphone in The Handset and Line Sig-
nal Level Measurement
Setting:
Procedure:
1. Connect equipments as the figure above.
2. Set the base unit to test mode, press the
[4]
key of the base
unit to display “TEST D”, and press the
[6]
keys to set slave
mode.
3. Set the handset to test mode, then press the
[4]
key of the hand-
set to display “TEST D”, and press the
[6]
key to set master
mode. (TX on)
4. Check that the value of audio analyzer is –3 to –9 dBm.
7.
Between Line and Speaker in The Handset Signal
Level Measurement
Setting:
Procedure:
1. Connect equipments as the figure above.
2. Set the base unit to test mode, press the
[4]
key of the base
unit to display “TEST D”. (TX on, master mode)
3. Set the handset to test mode, then press the
[4]
key of the hand-
set to display “TEST D”, and press the
[6]
key to set slave
mode.
4. Check that the value of audio analyzer is –10 to –16 dBm.
+9 V
regulated dc
power supply
Handset
Base unit
RF271
TP201
TP202
–
+
RF61
A
Base unit
feeding bridge
Trunk
Line
Line
Output
TP101
TP102
RF271
Input
audio analyzer
1.2 kHz, –37 dBm
LPF: 30 kHz ON
600
Ω
TP5
TP6
(MIC GND)
RF61
Handset
Base unit
feeding bridge
Trunk
Line
Line
Input
TP101
TP102
RF271
Output
audio analyzer
1.2 kHz, –17 dBm
LPF: 30 kHz ON
150
Ω
TP3
TP4
(MIC GND)
RF61
Handset
+9 V
regulated dc
power supply
Base unit
TP201
TP202
–
+
A
+
–
frequency counter
pick-up coil
antenna
Summary of Contents for SPP-S2720
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