Vertex Standard VXR-9000U Alignment Manual page 4

Set the channel to CH16.
Set the output of the audio generator (AG) to 1 kHz and 200 mV.
With the PTT switch pressed, adjust VR1003 so that the maximum deviation is ±4.4
kHz.
Set the output of the audio generator (AG) to 100 Hz and 1 V.
With the PTT switch pressed, adjust VR1004 so that the maximum deviation is ±4.4
kHz.
Adjustment of Receiver Front-end
Adjust the receiver front-end coil.
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 L1001, L1002, L1003, L1004, and L1005 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.
ATTEN 20dB
RL 10.0dBm
10dB/
CENTER 159.00 MHz
*RBW 30 kHz VBW 30 kHz
GX1255S-FRONT-END
SPAN 20.00 MHz
SWP 56.0 ms
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FCC ID: K6630143X3D
IC ID: 511B-30143X3D
Alignment
Vertex Standard Co,. Ltd.