FCC ID: K6630053X30
IC ID: 511B-30053X30
Alignment
5/7
Vertex Standard Co,. Ltd.
±5.0 KHz.
Set the channel to
EXP02
, confirm that maximum deviation is between ±4.3 KHz and
±5.0 KHz.
Set the channel to
EXP04
, confirm that maximum deviation is between ±4.0 KHz and
±5.0 KHz.
Set the channel to
EXP05
, confirm that maximum deviation is between ±4.0 KHz and
±5.0 KHz.
Adjustment of Receiver Front-end
Adjust the receiver front-end coil.
-- Adjustment --
Setup the test equipment as shown below.
Set the center frequency of the spectrum analyzer to 159.00 MHz, set SPAN to 20.00
MHz, set RBW and VBW to 30 KHz, and set SWP to 56 ms.
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.
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
