Kenwood TK-5210 K Service Manual page 41

Vhf apco p25 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 frequencies
you want in actual operation.
• Test Frequency (MHz)
Channel No.
RX Frequency
1
155.10000
2
136.10000
3
173.90000
4
155.00000
5
155.20000
6
155.40000
7~16
• Test Signaling
Signaling
RX Signaling
No.
1
None
2
None
3
QT 67.0Hz
4
QT 151.4Hz
5
QT 210.7Hz
6
QT 254.1Hz
7
DQT 023N
8
DQT 445N
9
DQT 754I
10
DTMF Code "159D"
11
None
12
None
13
2-Tone:
A : 304.7Hz
B : 3106.0Hz
14
Single Tone : 979.9Hz
15
None
16
MSK
Sync : 0x052B
Data : 0x230960C6AAAA Data : 0x230960C6AAAA
CRC : 0xC4D7
17
NAC 293
18
NAC 023
19
NAC 5EA
20
1011Hz Tone Test Pattern 1011Hz Tone Test Pattern APCO
21
NAC 293
22
NAC 293
23
NAC 293
24
NAC 293
25
NAC 293
26
NAC 293
ADJUSTMENT
TX Frequency
155.00000
136.00000
173.95000
155.00000
155.20000
155.40000
-
-
TX Signaling
APCO/
Analog
None
Analog
100Hz Square wave
Analog
QT 67.0Hz
Analog
QT 151.4Hz
Analog
QT 210.7Hz
Analog
QT 254.1Hz
Analog
DQT 023N
Analog
DQT 445N
Analog
DQT 754I
Analog
DTMF Code "159D"
Analog
DTMF Code "9"
Analog
1633Hz Single Tone
Analog
2-Tone:
Analog
A : 304.7Hz
B : 3106.0Hz
Single Tone : 979.9Hz
Analog
MSK PN Pattern
Analog
MSK
Analog
Sync : 0x052B
CRC : 0xC4D7
NAC 293
APCO
NAC 023
APCO
NAC 5EA
APCO
Silence Pattern
APCO
Calibration Pattern
APCO
Transmitter Test Pattern APCO
Symbol Rate Pattern
APCO
Low Deviation Pattern
APCO
Fidelity Pattern
APCO
Panel Tuning Mode
The transceiver is adjusted in this mode.
For the K model (without LCD), perform "Tuning mode"
using the KPG-95D.
■ 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
8Ω dummy load and connected to an AC voltmeter and an
audio distortion meter or a SINAD measurement meter at all
times during tuning.
■ To enter the Panel Tuning Mode
Press the [Side3] key in the panel test mode.
Use the [B] key to write tuning data through tuning modes,
and the [C] and [D] keys to adjust tuning requirements (1 to
256 appeares on LCD).
Use the [A] key to select the adjustment item through tun-
ing modes. Use the [Side1] key to adjust 3 or 5 reference level
adjustments, and use the [Concentric switch] to switch be-
tween Wide/Narrow/APCO. (Position "A":Wide, Position
"B":Narrow, Position "C":APCO)
• LCD display in the panel tuning mode
W: Wide
N : Narrow
A : APCO
W
Balance
NXT SET
Adjustment
item
TK-5210
(K2 and K3 models only)
LO
256
Adjustment
value(1~256)
41

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