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NX-800/800H
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 frequen-
cies you want in actual operation.
• Test frequency
CH RX (MHz) TX (MHz)
1 485.05000 485.10000
2 450.05000 450.10000
3 519.95000 519.90000
4 485.00000 485.00000
5 485.20000 485.20000
6 485.40000 485.40000
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
12
2-tone :
A: 304.7Hz
B: 3106.0Hz
2-tone :
A: 304.7Hz
B: 3106.0Hz
13 Single Tone: 979.9Hz Single Tone: 979.9Hz
14 None Single Tone: 1000Hz
15 None MSK
16 MSK MSK
• NXDN mode signaling
No. RX TX
1 RAN1 RAN1
2 None PN9
3 RAN1 Maximum deviation pattern
RAN: Radio Access Number
PN9: Pseudo-Random Pattern (For production only)
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 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.
■
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
An CNTR 256
2.6
Proper value guide
(When the frequency
adjustment is necessary,
▼ or ▲ is displayed.)
Adjustment
point
L,L’,C,H’,H
Adjustment value
(1~4096)
Adjustment item
An: Analog narrow mode
Aw: Analog wide mode
Nn: NXDN narrow mode
Nv: NXDN very narrow mode
CV voltage, AD value, etc
Main LCD display
Sub LCD display
■
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/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],
[#], [
]
--
ADJUSTMENT