
1-20 (No.RA003<Rev.004>)
*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.
SECTION 5
TROUBLESHOOTING
5.1
SYSTEM SET-UP
3. Tight squelch
(Analog Narrow)
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output :
-117dBm (0.32uV) (K,K2,P,M,M2,M3)
-116dBm (0.35uV) (K3)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
4. Low RSSI
(Analog Narrow)
*Note 6
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -120dBm (0.22uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
4. Low RSSI
(NXDN Very Narrow)
*Note 6
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -120dBm (0.22uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
5. High RSSI
(Analog Narrow)
*Note 6
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -80dBm (22.4uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
5. High RSSI
(NXDN Very Narrow)
*Note 6
(1)TEST CH: Low, Center, High (3 point)
(2)SSG output: -80dBm (22.4uV)
AF Freq : 1kHz
Mod Dev : ±1.5kHz
SSG
Oscilloscope
Audio
Analyzer
ANT
FPU Press [Start]
(Auto tuning)
Item
Condition
Measurement
Adjustment
Specifica-
tions
/Remarks
Test-
equipment
Unit Terminal Unit Parts
Method
Choose the type of transceiver
Transceiver programming
Merchandise received
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.)
TX/RX 450~520
5.0W
NX-340 K, M
NX-340(U) K
TX/RX 400~470
TX/RX 350~400
5.0W
NX-340 K2, P, M2, M3
NX-340(U) K2
5.0W
NX-340 K3
Frequency range (MHz)
RF power
Type
Delivery
Are you using the speaker microphone?
YES
NO
KMC-21, KMC-45
Speaker microphone
or
KMC-48GPS
GPS speaker microphone
(Option)
Are you using the optional antenna?
YES
NO
KRA-23, KRA-27 or KRA-42
Optional antenna
Содержание NEXEDGE NX-340
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