Kenwood NX-420 K Service Manual page 35

■ 2 reference level adjustments frequency
Receive Assist
Tuning point RX (MHz)
Low 851.100000
High 869.900000
QT Deviation
DQT Deviation
LTR Deviation
DTMF Deviation
MSK Deviation
Tuning point RX (MHz)
High 869.900000
TA High 869.900000
■ Adjustment item supplement
Adjustment Item
Counterclockwise Volume
Clockwise Volume
Receive Assist
Transmit Assist
Frequency
High Transmit Power
Low Transmit Power
Balance
Maximum Deviation
(NXDN Narrow/Very Narrow)
Maximum Deviation
(Analog Wide 5k/Wide 4k/
Narrow)
QT Deviation
DQT Deviation
LTR Deviation
DTMF Deviation
MSK Deviation
CW ID Deviation
ADJUSTMENT
TX (MHz)
806.000000
825.000000
TX (MHz)
825.000000
870.000000
" Counterclockwise Volume" is adjusted at the minimum volume position.
" Clockwise Volume " is adjusted at the maximum volume position.
These adjustments can correct the volume variation.
Both " Counterclockwise Volume " and " Clockwise Volume " must be adjusted.
(The curve data of volume is applied.)
The lock voltage of VCO (Receive) is adjusted.
This item must be adjusted before all adjustment items for receiver section are adjusted.
This item can be adjusted only in PC Test Mode.
The lock voltage of VCO (Transmit) is adjusted.
This item must be adjusted before all adjustment items for transmitter section are adjusted.
This item can be adjusted only in PC Test Mode.
Frequency stability is adjusted under receiving condition with SSG.
The SSG needs 0.001ppm accuracy so please use a standard oscillator if necessary.
This item can be adjusted only in PC Test Mode so that the adjustment value is not changed easily.
High Transmit Power is adjusted.
Low Transmit Power is adjusted.
The transmit audio frequency response is adjusted.
This item is adjusted so that the deviation of 2kHz becomes the same deviation of 20Hz.
This item must be adjusted before all adjustment items for deviations are adjusted.
Maximum Deviation of NXDN (Narrow/Very Narrow) is adjusted.
Maximum Deviation of Analog (Wide 5k/Wide 4k/Narrow) is adjusted.
This item must be adjusted before all adjustment items for tone deviations are adjusted.
Note: " Maximum Deviation (Analog Narrow) " must be adjusted before " CW ID Deviation (NXDN Very
Narrow) " is adjusted.
QT tone deviation is adjusted.
DQT tone deviation is adjusted.
LTR tone deviation is adjusted.
DTMF tone deviation is adjusted.
MSK tone deviation is adjusted.
CW ID tone deviation is adjusted.
CW ID is used to inform the others who is transmitting on a 6.25kHz spacing channel.
(In FCC rule, Analog mode or CW ID is required for each channel-spacing.)
■ 3 reference level adjustments frequency
Tuning point RX (MHz)
Low 851.100000
Center 859.900000
High 869.900000
■ 4 reference level adjustments frequency
Tuning point RX (MHz)
Low 851.100000
High 869.900000
TA Low 851.100000
TA High 869.900000
Description
NX-420
TX (MHz)
806.000000
815.000000
825.000000
TX (MHz)
806.000000
825.000000
851.000000
870.000000
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