Test Channel; Test Signaling (Analog); Test Signaling (Nxdn); Adjustment Points - Kenwood NXR-710 Service Manual

NXR-710

Test Channel

No.
1 155.050000MHz
2 136.050000MHz
3 173.950000MHz
4 155.000000MHz
5 155.200000MHz
6 155.400000MHz
7~16

Adjustment Points

40
ADJUSTMENT
RX TX
155.100000MHz
136.100000MHz
173.900000MHz
155.000000MHz
155.200000MHz
155.400000MHz
Blank Blank
TX-RX UNIT
Component side
2nd_Lo
MOD
450kHz
LDR LDT

Test Signaling (Analog)

No. RX (Decode Signaling)
1 None
2 None
3 QT 67.0Hz
4 QT 151.4Hz
5 QT 210.7Hz
6 QT 254.1Hz
7 DQT D023N
8 DQT D754I
9 None
10 None
11 DTMF Decode (CODE: 159D) DTMF Encode (CODE: 159D)
12 None
13 None

Test Signaling (NXDN)

No. RX (Decode Signaling)
1
2
3
• Signaling number 1 is used for link test.
• Signaling number 2 is used for TX modulation signal qual-
ity test. i.e, TX adjacent channel power, FSK error, Occu-
pied bandwidth, Emission mask, etc.
• Signaling number 3 is used for TX deviation test. If the
modulation mode is very narrow, the modulation fre-
quency is 600Hz. If the modulation mode is narrow, the
modulation frequency is 1200Hz.
ASWC
TX_CV
TX_AST
MO
VOUT4
VOUT7
TX (Encode Signaling)
None
100Hz Square Wave
QT 67.0Hz
QT 151.4Hz
QT 210.7Hz
QT 254.1Hz
DQT D023N
DQT D754I
CWID Encode (ID: VVV)
Single Tone
DTMF Encode (CODE: 9)
Courtesy Tone
TX (Encode Signaling)
RAN 1 RAN 1
RAN 1 PN 9
RAN 1 Maximum Deviation Pattern
MB
MB_CV2
RX_AST
RX_CV