Panel Tuning Mode; Frequency And Signaling; Analog Mode Signaling; Nxdn Mode Signaling - Kenwood NX-700 Service Manual

Vhf digital transceiver
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■ Frequency and Signaling

The transceiver has been adjusted for the frequencies
shown in the following table. When required, readjust them
following the adjustment procedure to obtain the frequen-
cies you want in actual operation.
• Test frequency
CH
RX (MHz)
1
155.05000
2
136.05000
3
173.95000
4
155.00000
5
155.20000
6
155.40000
7~16
-

• Analog mode signaling

No.
RX
1
None
2
None
LTR Data :
AREA=0, GOTO=12
3
HOME=12
ID=47, FREE=25
4
QT: 67.0Hz
5
QT: 151.4Hz
6
QT: 210.7Hz
7
QT: 254.1Hz
8
DQT: D023N
9
DQT: D754I
10
DTMF: 159D
11
None
2-tone :
12
A: 304.7Hz
B: 3106.0Hz
13
Single Tone: 979.9Hz
14
None
15
None
16
MSK

• NXDN mode signaling

No.
RX
1
RAN1
2
None
3
RAN1
RAN: Radio Access Number
PN9: Pseudo-Random Pattern (For production only)
ADJUSTMENT
TX (MHz)
155.10000
136.10000
173.90000
155.00000
155.20000
155.40000
-
TX
None
100Hz Square Wave
LTR Data :
AREA=0, GOTO=12
HOME=12
ID=47, FREE=25
QT: 67.0Hz
QT: 151.4Hz
QT: 210.7Hz
QT: 254.1Hz
DQT: D023N
DQT: D754I
DTMF: 159D
DTMF Code 9
2-tone :
A: 304.7Hz
B: 3106.0Hz
Single Tone: 979.9Hz
Single Tone: 1000Hz
MSK
MSK
TX
RAN1
PN9
Maximum deviation pattern
NX-700/700H

Panel Tuning Mode

■ Preparations for tuning the transceiver
Before attempting to tune the transceiver, connect the
unit to a suitable power supply.
Whenever the transmitter is turned, the unit must be
connected to a suitable dummy load (i.e. power meter).
The speaker output connector must be terminated with
a 4Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
■ Transceiver tuning (To enter tuning mode)
To enter tuning mode, press the [ ] key while the trans-
ceiver is in test mode. Use the [ ] key to write tuning data
through tuning modes, and the [ ]/[ ] key to adjust tuning
requirements (1 to 4096 appears on the LCD).
Use the [
] key to select the adjustment item through
tuning modes. Use the [ ] key to adjust 5 reference level
adjustments, and use the [ ] key to switch between Wide/
Narrow/Very narrow.
• LCD display in panel tuning mode
CV voltage, AD value, etc
Sub LCD display
2.6
An
Main LCD display
Adjustment
point
L,L',C,H',H
An: Analog narrow mode
Aw: Analog wide mode
Nn: NXDN narrow mode
Nv: NXDN very narrow mode
■ Key operation
Key
Push
[ ] / [ ]
Adjustment value up/down Continuation up/down
[ ] / [ ]
Volume up/down
[ ]
Auto adjustment start
[ ]
Wide/Narrow/Very narrow
[ ]
Shift to panel test mode
To enter 5 reference level
[ ]
adjustments L/L'/C/H'/H
Writes the adjustment
[ ]
value
[
]
Go to next adjustment item Back to last adjustment item
Microphone key
[PTT]
Transmit
[0] to [9]
and [A]
-
to [D],
[#], [ ]
CNTR
256
Adjustment value
(1~4096)
Proper value guide
(When the frequency
adjustment is necessary,
▼ or ▲ is displayed.)
Adjustment item
Function
Hold (1 second)
Continuation up/down
-
-
-
-
-
-
-
45

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