FCC ID: K6630043X30
IC ID: 511B-30043X30
Alignment
Vertex Standard Co,. Ltd.
4
Adjustment of Receiver Front-end
Adjust the receiver front-end coil.
-- Adjustment --
Setup the test equipment as shown below.
Set the center frequency of t he spectrum analyzer to 159.00 MHz, set SPAN to 20.00
MHz, and set RBW and VBW to 30 kHz.
Adjust
T1001
,
T1002
,
T1003
,
T1004
, and
T1005
until the wave form shown in below is
obtained.
Note
: Adjust the output of the tracking generator so that RF AMP and spectrum analyzer
will not saturate.
Figure shows the reference wave form. The wave form varies with measuring instruments.
It is impotent to take the lowest possible value at the stop band near 150 MHz and the
highest possible value at the band near 156 MHz.
Each coil shall be adjusted at the range between the initial condition and right and left
revolving.
Starting Test Mode
Confirm that turn off the transceiver, and short the TEST points. Press the
PWR/VOL
switch while press and holding the *** , *** and *** keys. Then appear on display.
|ALIGNMENT |
|00:MAX PO |
|DATA:xxx |
Adjustment of Transmit Power
Adjust power at high and low in the transmit mode, and confirm power in the specified
bandwidth.
– High Power Setting --
Connect the wattmeter and 50
Ω
dummy load to the antenna jack.
Press the
SCAN
key, then appear |ALIGNMENT | on display.
|01:HI PO
|
GX1255S-FRONT-END
ATTEN 20dB
RL 10.0dBm
10dB/
CENTER 159.00 MHz
*RBW 30 kHz VBW 30 kHz
SPAN 20.00 MHz
SWP 56.0 ms
