Vertex Standard GX1255S, Руководство по настройке

Страница: 4 / 7

FCC ID: K66GX1255S
Alignment
Vertex Standard Co,. Ltd.
4
!
Use the
H/L
key to set transceiver to
low power
low power low power
low power
and set the channel to CH16 CH16 CH16 CH16. With
the
PTT
switch pressed, adjust
VR1002
so that RF power is 0.8 W.
-- Confirmation --
!
Use the
H/L
key to set transceiver to
high power
high power high power
high power
and set the channel to EXP01 EXP01 EXP01 EXP01.
With the
PTT
switch pressed, confirm that RF power is between 23 W and 27 W.
!
Use the
H/L
key to set transceiver to low power low power low power low power . With the
PTT
switch pressed,
confirm that RF power is between 0.5 W and 1.0 W.
!
As descried above, confirm RF power at EXP04
EXP04 EXP04
EXP04 and EXP05
EXP05 EXP05
EXP05. Set transceiver to
high power high power high power high power and confirm that RF power is between 23 W and 27 W. Set transceiver
to low power low power low power low power and confirm that RF power is between 0.5 W and 1.0 W.
Adjustment of PLL Frequency Adjustment of PLL Frequency Adjustment of PLL Frequency Adjustment of PLL Frequency
Adjust the frequency in the transmit mode and local frequency in the receive mode.
-- Adjustment --
!
Setup the test equipment as shown below.
!
Set the channel to CH16 CH16 CH16 CH16. With the
PTT
switch pressed, adjust
TC1001
so that RF
frequency is 156.80000 MHz ± 50 Hz.
Adjustment and Confirmation of Deviation Adjustment and Confirmation of Deviation Adjustment and Confirmation of Deviation Adjustment and Confirmation of Deviation
Adjust deviation in the transmit mode.
-- Adjustment --
!
Setup the test equipment as shown below.
!
Set the channel to CH16
CH16 CH16
CH16.
!
Set the output of the audio generator (AG) to 1 KHz and 150 mV.
!
With the
PTT
switch pressed, adjust
VR1003
so that the maximum deviation is
±4.5 KHz.
!
Decrease the output level of AG by 20 dB (the output level of AG should be 1/10).
!
With the
PTT
switch pressed, adjust the output level of AG so that the deviation is
±3.0 KHz.
!
Increase the output level of AG by 20 dB (10 times of the output level of AG) which
is supposed to be Detective Modulation Level ±4.5 KHz).
!
Repeat steps 3 though 6 three times so that deviation is ±3.0 KHz and the
maximum deviation is ±4.4 KHz to ±4.6 KHz.
-- Confirmation --
!
Set the output of the AG to 1 KHz and 150 mV.
!
Set the channel to EXP01 EXP01 EXP01 EXP01, confirm that maximum deviation is between ±4.3 KHz
and ±5.0 KHz.