Kenwood NX-820H Service Manual page 52

NX-820H(G)/820H

3 Necessary Deviation adjustment item for each signaling and mode
The following shows the necessary adjustment items for each signaling deviation. Please read the following table like the following
example. In the case of the signaling "QT (Wide 5k)", this signaling is composed of three elements [Balance, Maximum Deviation (Analog
Wide 5k) and QT Deviation (Wide 5k)]. Please adjust Balance and Maximum Deviation (Analog Wide 5k) before adjusting QT Deviation
(Wide 5k).
Mode Signaling
Analog Audio 1. Balance adjust
2. Maximum Deviation adjust [Wide]
QT 1. Balance adjust
2. Maximum Deviation adjust [Wide]
3. QT Deviation adjust [Wide]
DQT 1. Balance adjust
2. Maximum Deviation adjust [Wide]
3. DQT Deviation adjust [Wide]
LTR 1. Balance adjust
2. Maximum Deviation adjust [Wide]
3. LTR Deviation adjust [Wide]
DTMF 1. Balance adjust
2. Maximum Deviation adjust [Wide]
3. DTMF Deviation adjust [Wide]
2TONE 1. Balance adjust
2. Maximum Deviation adjust [Wide]
3. Single TONE Deviation adjust [Wide]
MSK 1. Balance adjust
(Fleet sync) 2. Maximum Deviation adjust [Wide]
3. MSK Deviation adjust [Wide]
NXDN Audio
-
CWID
-
Receiver Section
Item Panel test mode
1.AF level setting [Panel test mode]
1) CH-Sig: 1-1
SSG output:
–47dBm (1mV)
(MOD:
1kHz/±1.5kHz)
Wide 5k/Narrow:
Narrow
Beat Shift:
Uncheck
Compander:
Uncheck
52
ADJUSTMENT
Necessary adjustment and order
Wide
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. QT Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. DQT Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. LTR Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. DTMF Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. Single TONE Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation adjust [Narrow]
3. MSK Deviation adjust [Narrow]
1. Balance adjust
2. Maximum Deviation [NXDN Narrow]
-
Measurement
PC test mode
Test-
equipment
1) Test Channel SSG
Channel: 1 DVM
Test Signaling AF VTVM
Mode: Analog 4ohm
Signaling: 1 Dummy
Wide 5k/Narrow: load
Narrow
Beat Shift:
Uncheck
Compander:
Uncheck
SSG output:
–47dBm
(1mV) (MOD:
1kHz/±1.5kHz)
Narrow
Unit Terminal Unit Parts
ANT [Panel
Ext.SP
tuning
connector
mode]
[ ],[
[PC test
mode]
[ ],[
Very Narrow
-
-
-
-
-
-
-
1. Balance adjust
2. Maximum Deviation adjust
[NXDN Very Narrow]
1. Balance adjust
2. Maximum Deviation [Analog Narrow]
3. CWID Deviation adjust [Very Narrow]
Adjustment
Specifi cations/
Method
Volume Up/Down 2.83V±0.3V
Knob to obtain
2.83V AF output. ( Volume Button
(2.0W @ 4ohm in PC test mode
]
load) screen)
]
Remarks