Kenwood NEXEDGE NX-900, Service Manual, Page: 45 / 115

NX-900
45
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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) TX (MHz)
1 851.050000 806.050000
2 860.050000 815.050000
3 869.950000 824.950000
4 851.550000 806.550000
5 860.550000 815.550000
6 869.450000 824.450000
7~16 - -
• Analog mode signaling
No. RX TX
1 None None
2 None 100Hz Square Wave
3
LTR Data :
AREA=0, GOTO=12
HOME=12
ID=47, FREE=25 LTR Data :
AREA=0, GOTO=12
HOME=12
ID=47, FREE=25
4 QT: 67.0Hz QT: 67.0Hz
5 QT: 151.4Hz QT: 151.4Hz
6 QT: 210.7Hz QT: 210.7Hz
7 QT: 254.1Hz QT: 254.1Hz
8 DQT: D023N DQT: D023N
9 DQT: D754I DQT: D754I
10 DTMF: 159D DTMF: 159D
11 None DTMF Code 9
15 None MSK
16 MSK MSK
• NXDN mode signaling
No. RX TX
1 RAN1 RAN1
2 None PN9
3 RAN1 Maximum deviation pattern
7 None
FSW + PN9
(PC test mode only)
RAN: Radio Access Number
PN9: Pseudo-Random Pattern (For production only)
Panel Tuning Mode
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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 4 Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
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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 2, 3 or 4 reference
level adjustments, and use the [ ] key to switch between
Wide 5k/Wide 4k/Narrow/Very narrow.
• LCD display in panel tuning mode
Proper value guide
(When the frequency
adjustment is necessary,
▼
or
▲
is displayed.)
Adjustment point
L,C,H
Adjustment value
(1~4096)
Adjustment item
Aw: Analog wide 5k mode
As: Analog wide 4k mode
An: Analog narrow mode
Nn: NXDN narrow mode
Nv: NXDN very narrow mode
CV voltage, AD value, etc
Main LCD display
Sub LCD display
C Aw NT R 2 5 6
2 . 6
Talk Around
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Key operation
Key
Function
Push Hold (1 second)
[ ] / [ ] Adjustment value up/down Continuation up/down
[ ] / [ ] Volume up/down Continuation up/down
[ ] Auto adjustment start -
[ ]
Wide 5k/Wide 4k/Narrow/
Very narrow
-
[ ] Shift to panel test mode -
[ ]
To enter 2, 3 or 4 refer-
ence level adjustments
-
[ ]
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],
[#], [ ]
- -
ADJUSTMENT