Kenwood NX-300 Service Manual page 53
Uhf digital transceiver
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Also See for NX-300:
- Service manual (172 pages) ,
- Operating instructions (2 pages) ,
- Function reference (608 pages)
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Radio Check Section
Item
Panel test mode
1. Frequency
1) CH-Sig: 1-1
check
PTT: ON
2. High power
1) CH-Sig: 1-1
check
PTT: ON
(Batt: 7.5V)
2) CH-Sig: 2-1
PTT: ON
3) CH-Sig: 3-1
PTT: ON
3. Low power
1) CH-Sig: 1-1
check
PTT: ON
(Batt: 7.5V)
2) CH-Sig: 2-1
PTT: ON
3) CH-Sig: 3-1
PTT: ON
4. MIC
1) CH-Sig: 1-1
sensitivity
AG: 1kHz
check
PTT: ON
ADJUSTMENT
Condition
PC test mode
equipment
1) Test Channel
f. counter
Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Power
Channel: 1
meter
Test Signaling
Ammeter
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
2) Test Channel
Channel: 2
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
3) Test Channel
Channel: 3
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Channel: 1
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
2) Test Channel
Channel: 2
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
3) Test Channel
Channel: 3
Test Signaling
Mode: Analog
Signaling: 1
PTT: Press
[Transmit] button.
1) Test Channel
Deviation
Channel: 1
meter
Test Signaling
Oscilloscope
Mode: Analog
AG
Signaling: 1
AF VTVM
AG: 1kHz
PTT: Press
[Transmit] button.
Measurement
Test-
Unit
Terminal
Unit
Panel ANT
ANT
Universal
connector
NX-300(G)
Adjustment
Specifications /
Parts
Method
Check an internal
+0.05/+0.55ppm
temperature of
radio within 25˚C ±
485.100024 ~
2˚C.
485.100266MHz
@485.1MHz K,K3
435.100021 ~
435.100239MHz
@435.1MHz K2,K4
Check
4.5W~5.5W
2.3A or less
0.7W~1.2W
1.2A or less
Adjust AG input
12.5mV±5.8mV
to get a standard
MOD.
Remarks
53
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