Kenwood NX-800 Service Manual page 45

■ 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 frequencies
you want in actual operation.
• Test frequency
CH RX (MHz)
1 485.05000
2 450.05000
3 519.95000
4 485.00000
5 485.20000
6 485.40000
7~16 -
• Analog mode signaling
No. RX
1 None
2 None
3 LTR Data :
AREA=0, GOTO=12
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
12 2-tone :
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
(Factory only)
ADJUSTMENT
TX (MHz)
485.10000
450.10000
519.90000
485.00000
485.20000
485.40000
-
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
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 con-
nected 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
2.6 Sub LCD display
An CNTR
Adjustment
point
L
Proper value guide
L'
(When the frequency adjustment
C
is necessary, ▼ or ▲ is displayed.)
H'
Adjustment item
H
An: Analog narrow mode
Aw: Analog wide mode
Nn: NXDN narrow mode
Nv: NXDN very narrow mode
NX-800
256
Main LCD display
Adjustment value
(1~4096)
45