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Kenwood NX-3720HG Service Manual page 93

Vhf digital transceiver, uhf digital transceiver
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4.21.4 Adjustment item supplement
Adjustment Item
Description
LCD Contrast
The contrast of LCD display can be
changed.
VCO Assist
The lock voltage of VCO is adjusted.
This item must be adjusted before receiver
and transmitter adjustment items.
Frequency
Frequency 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.
RTC Correction
Real Time Clock is adjusted.
This item uses the internal clock.
(Any measurement equipment is not
required.)
Maximum Transmit
Maximum Transmit Power is adjusted.
Power
High Transmit
High Transmit Power is adjusted.
Power
Mid Transmit
Medium Transmit Power is adjusted.
Power
Low Transmit
Low Transmit Power is adjusted.
Power
Ramp Offset
Adjust this item to the optimal Ramp
voltage.
Balance
The transmit modulation 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
Maximum Deviation of Analog (Wide 5k/
(Analog Wide 5k/
Wide 4k/Narrow) is adjusted.
Wide 4k/Narrow)
This item must be adjusted before all
adjustment items for tone deviations are
adjusted.
High Deviation
NXDN/DMR high deviation is adjusted.
QT Deviation
QT deviation is adjusted.
DQT Deviation
DQT deviation is adjusted.
LTR Deviation
LTR deviation is adjusted.
DTMF Deviation
DTMF deviation is adjusted.
Single Tone
The deviation of Single Tone used in "2-
Deviation
tone" and "5-tone" is adjusted.
MSK Deviation
MSK deviation is adjusted.
CW ID Deviation
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.)
Adjustment Item
Description
IQ Phase
Correction of phase difference shift
between I and Q.
RSSI Reference
The minimum RSSI level for scan stop is
adjusted.
Squelch Open
The squelch level at level "1" is adjusted.
Squelch Tight
The squelch level at level "9" is adjusted.
Low RSSI
RSSI display level "
Both "Low RSSI" and "High RSSI" must be
High RSSI
adjusted. (The curve data of RSSI level is
applied.)
" is adjusted.
(No.RA054<Rev.001>)1-93

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