FCC ID: K6630483X3D
IC: 511B-30483X3S
Alignment
4/5
Vertex Standard Co., Ltd.
Overview of the Alignment Mode
The alignment mode has been built in the microprocessor in order to adjust the
performance of transceiver.
Starting the alignment mode
Set the channel to
CH16
and then press the [
PWR
] switch while press and holding the
[
DISTRESS
] and [
CALL/MENU
] keys.
Adjustment of TX High Power
Connect the wattmeter and 50-ohm dummy load to the antenna jack.
Press the [
ITEM
] key till “
00:Hi Po
” is displayed.
Press
[
▲
] or [
▼
] keys while pressing the [
PTT
] key to set the power to 24.0 ± 0.1W.
Press
[
SET
] key to fix the alignment data.
Adjustment of TX Low Power
Connect the wattmeter and 50-ohm dummy load to the antenna jack.
Press the [
ITEM
] key till “
01:Lo Po
” is displayed.
Press
[
▲
] or [
▼
] keys while pressing the [
PTT
] key to set the power to 0.8 ± 0.1W.
Press
[
SET
] key to fix the alignment data.
Adjustment of the Maximum Deviation
Connect the linear detector to the antenna jack and connect the AF signal generator to
the microphone jack.
Set the AF signal output level to 200mVrms at 1kHz
Press the [
ITEM
] key till “
02:Devi
” is displayed.
Press
[
▲
] or [
▼
] keys while pressing the [
PTT
] key to set the deviation to 4.4 ± 0.1kHz.
Press
[
SET
] key to fix the alignment data.
Adjustment of the Microphone Sensitivity
Connect the linear detector to the antenna jack and connect the AF signal generator to
the microphone jack.
Set the AF signal output level to 20mVrms at 1kHz
Press the [
ITEM
] key till “
03:MIC SEN
” is displayed.
Press
[
▲
] or [
▼
] keys while pressing the [
PTT
] key to set the deviation to 3.0 ± 0.1kHz.
Press
[
SET
] key to fix the alignment data.
Adjustment of the Squelch Threshold
Connect the RF signal generator to the antenna jack.
Set the output frequency at 156.8000MHz with standard modulation (±3.0kHz deviation,
