Troubleshooting - Kenwood NX-340 Service Manual

Uhf digital transceiver
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3. Tight squelch
(1)TEST CH: Low, Center, High (3 point)
(Analog Narrow)
(2)SSG output :
-117dBm (0.32uV) (K,K2,P,M,M2,M3)
-116dBm (0.35uV) (K3)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
4. Low RSSI
(1)TEST CH: Low, Center, High (3 point)
(Analog Narrow)
(2)SSG output: -120dBm (0.22uV)
AF Freq : 1kHz
*Note 6
Mod Dev : ±1.5kHz
4. Low RSSI
(1)TEST CH: Low, Center, High (3 point)
(NXDN Very Narrow)
(2)SSG output: -120dBm (0.22uV)
AF Freq : 1kHz
*Note 6
Mod Dev : ±1.5kHz
5. High RSSI
(1)TEST CH: Low, Center, High (3 point)
(Analog Narrow)
(2)SSG output: -80dBm (22.4uV)
AF Freq : 1kHz
*Note 6
Mod Dev : ±1.5kHz
5. High RSSI
(1)TEST CH: Low, Center, High (3 point)
(NXDN Very Narrow)
(2)SSG output: -80dBm (22.4uV)
AF Freq : 1kHz
*Note 6
Mod Dev : ±1.5kHz
*Note 5:
(1) Only RX Sensitivity (Semiautomatic) needs to be adjusted (RX Sensitivity does not need to be adjusted again).
*Note 6:
(1) If Analog Narrow band RSSI tuning is selected, Analog Narrow band and NXDN Very Narrow will be adjusted with the same
tuning value.
(2) If NXDN Very Narrow RSSI tuning is selected, it will adjust for the NXDN Very Narrow band only.
5.1
SYSTEM SET-UP
Merchandise received
Choose the type of transceiver
Transceiver programming
Are you using the optional antenna?
Are you using the speaker microphone?
1-20 (No.RA003<Rev.004>)
Condition
SECTION 5

TROUBLESHOOTING

YES
NO
YES
NO
Delivery
Measurement
Test-
Unit Terminal Unit Parts
equipment
SSG
ANT
Oscilloscope
Audio
Analyzer
SSG
ANT
Oscilloscope
Audio
Analyzer
SSG
ANT
Oscilloscope
Audio
Analyzer
SSG
ANT
Oscilloscope
Audio
Analyzer
SSG
ANT
Oscilloscope
Audio
Analyzer
Frequency range (MHz)
RF power
TX/RX 450~520
5.0W
TX/RX 400~470
5.0W
TX/RX 350~400
5.0W
A personal computer, programming interface (KPG-22A/22U),
and FPU (programming software) are required for programming.
(The frequency, TX power HI/LOW, and signaling data are
programmed for the transceiver.)
KRA-23, KRA-27 or KRA-42
Optional antenna
KMC-21, KMC-45
Speaker microphone
or
KMC-48GPS
GPS speaker microphone
(Option)
Adjustment
Specifica-
tions
Method
/Remarks
FPU Press [Start]
(Auto tuning)
FPU Press [Start]
(Auto tuning)
FPU Press [Start]
(Auto tuning)
FPU Press [Start]
(Auto tuning)
FPU Press [Start]
(Auto tuning)
Type
NX-340 K, M
NX-340(U) K
NX-340 K2, P, M2, M3
NX-340(U) K2
NX-340 K3

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