Mode, Signaling, Necessary Adjustment And Order; Receiver Section - Kenwood NX-800 Service Manual

■ Mode, Signaling, Necessary adjustment and order

Mode Signaling
Analog Audio 1. Balance adjust
2. Analog Deviation adjust [Wide]
QT 1. Balance adjust
2. Analog Deviation adjust [Wide]
3. QT Deviation adjust [Wide]
DQT 1. Balance adjust
2. Analog Deviation adjust [Wide]
3. DQT Deviation adjust [Wide]
LTR 1. Balance adjust
2. Analog Deviation adjust [Wide]
3. LTR Deviation adjust [Wide]
DTMF 1. Balance adjust
2. Analog Deviation adjust [Wide]
3. DTMF Deviation adjust [Wide]
2TONE 1. Balance adjust
2. Analog Deviation adjust [Wide]
3. TONE Deviation adjust [Wide]
MSK 1. Balance adjust
(FleetSync) 2. Analog Deviation adjust [Wide]
3. MSK Deviation adjust [Wide]
NXDN

Receiver Section

Item
Panel tuning mode
1. AF level [Panel test mode]
setting 1) CH-Sig : 1-1
SSG output:
-47dBm (1mV)
(MOD: 1kHz,
Dev: ±1.5kHz)
2. Sensitivity 1 1) Adj item:[SENS1]
adjust Adjust:[***]
(BPF adjust) 2) Adj item:
[L SENS1]→
[L' SENS1]→
[C SENS1]→
[H' SENS1]→
[H SENS1]
Adjust:[***]
Press [ ] key to store
the adjustment value.
ADJUSTMENT
Necessary adjustment and order
Wide
1. Balance adjust
2. Analog Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. QT Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. DQT Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. LTR Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. DTMF Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. TONE Deviation adjust [Narrow]
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. MSK Deviation adjust [Narrow]
1. Balance adjust
- 2. NXDN Deviation adjust [Narrow]
Condition
PC test mode
equipment
1) Test Channel SSG
Channel : 1 DVM
Test Signaling AF VTVM
Mode : Analog Dummy
Signaling : 1 load (4Ω)
SSG output:
-47dBm (1mV)
(MOD: 1kHz,
Dev: ± 1.5kHz)
1) Adj item:[Sensitivity 1]
2) Adj item:[Low]
[Low']
[Center]
[High']
[High]
Press [Apply All] button to
store the adjustment value.
Narrow
Measurement
Test-
Unit Terminal Unit
ANT
Ext.SP
connector
NX-800
Very Narrow
-
-
-
-
-
-
-
1. Balance adjust
2. Analog Deviation adjust [Narrow]
3. CWID Deviation adjust [Very Narrow]
Adjustment
Specifications/
Parts Method
[ ],[ ] Volume Up/Down 2.83V± 0.3V
knob to obtain
2.83V AF output.
(2.0W @ 4Ω load)
[Panel Write the value as Output voltage
tuning followings adjustment of
mode] IC206
[ ],[ ] [L SENS1] / [Low]
: 90
[PC test [L' SENS1] / [Low']
mode] : 119
[ ],[ ] [C SENS1] / [Center]
: 150
[H' SENS1] / [High']
: 184
[H SENS1] / [High]
: 224
Remarks
57