Kenwood NX-900 Service Manual page 46

NX-900
■ 2 reference level adjustments frequency
Receive Assist
Tuning point
Low
High
QT Deviation
DQT Deviation
LTR Deviation
DTMF Deviation
MSK Deviation
Tuning point
High
TA High
■ Adjustment item supplement
Adjustment Item
LCD Contrast
Receive Assist
Transmit Assist
RTC
Frequency
High Transmit Power Limit
Low Transmit Power Limit
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
CWID Deviation
RSSI Reference
Open Squelch
Low RSSI
High RSSI
Tight Squelch
46
ADJUSTMENT
RX (MHz) TX (MHz)
851.100000 806.000000
869.900000 825.000000
RX (MHz) TX (MHz)
869.900000 825.000000
869.900000 870.000000
The contrast of LCD display can be changed.
The lock voltage of VCO (Receive) is adjusted.
This item must be adjusted before all adjustment items for receiver section are adjusted.
The lock voltage of VCO (Transmit) is adjusted.
This item must be adjusted before all adjustment items for transmitter section are adjusted.
Rea Time Clock (RTC) is adjusted.
This item uses the internal clock.
(Any measurement equipment is not required.)
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.
The limit value of the High Transmit Power output is adjusted.
The limit value of the Low Transmit Power output is adjusted.
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 "CWID 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.
CWID tone deviation is adjusted.
CWID is used to inform the others who is transmitting on a 6.25-kHz spacing channel.
(In FCC rule, Analog mode or CWID is required for each channel-spacing.)
The minimum RSSI level for scan stop is adjusted.
The squelch level at level "5" is adjusted.
RSSI display level " " is adjusted.
Both "Low RSSI" and "High RSSI" must be adjusted.
(The curve data of RSSI level is applied.)
The squelch level at level "9" is adjusted.
■ 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
TX (MHz)
806.000000
815.000000
825.000000
TX (MHz)
806.000000
825.000000
851.000000
870.000000