(No.RA003<Rev.004>)1-19
*Note 3:
Only 1 DQT Balance needs to be adjusted (either DQT Balance 1 or DQT Balance 2).
*Note 4:
For the adjustment of the Maximum Deviation (NXDN Very Narrow) and CW ID Deviation (NXDN Very Narrow).
After adjusting the DQT Balance and Maximum Deviation (Analog), it is necessary to adjust the Maximum Deviation (NXDN Very
Narrow) and CW ID Deviation (NXDN Very Narrow).
4.7
Receiver Section
6. Maximum
Deviation
(NXDN Very
Narrow)
*Note 4
(1)TEST CH: Low, Low', Center,
High', High (5 point)
(2)Deviation meter filter
LPF: 15kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 1.337kHz ±50Hz
7. CW ID Devi-
ation (NXDN
Very Narrow)
*Note 4
(1)TEST CH: Center
(2)Deviation meter filter
LPF: 15kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 1.00kHz
±100Hz
8. DQT
Deviation
(Analog Nar-
row)
(1)TEST CH: Center
(2)Deviation meter filter
LPF: 3kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 0.35kHz
±40Hz
9. QT Deviation
(Analog Nar-
row)
(1)TEST CH: Center
(2)Deviation meter filter
LPF: 3kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 0.35kHz
±40Hz
10. DTMF
Deviation
(Analog Nar-
row)
(1)TEST CH: Center
(2)Deviation meter filter
LPF: 15kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 1.5kHz
±50Hz
11. MSK
Deviation
(Analog Nar-
row)
(1)TEST CH: Center
(2)Deviation meter filter
LPF: 15kHz
HPF: OFF
(3)PTT ON
Deviation
meter
Oscillo-
scope
ANT
FPU 1.5kHz
±50Hz
Item
Condition
Measurement
Adjustment
Specifica-
tions
/Remarks
Test-
equipment
Unit Terminal Unit Parts
Method
Item
Condition
Measurement
Adjustment
Specifica-
tions
/Remarks
Test-
equipment
Unit Terminal Unit Parts
Method
1. RX Sensitivity
(Semiautomatic)
*Note 5
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -90dBm (7.08uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
2. Open Squelch 5
(Analog Narrow)
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -121dBm (0.2uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
2. Open Squelch 5
(NXDN Very Narrow)
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -124dBm (0.14uV)
AF Freq : 400Hz
Mod Dev : ±1.1kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)