VX-261 VHF FM Transceiver Service Manual
9
Test Setup
Setup the test equipment as shown below for transceiver
alignment, then apply 7.5 V DC power to the transceiver.
The Alignment Tool Outline
Installation of the alignment tool
Install the CE150 (PC Programming Software) to your
PC.
“Alignment“ function in the “Radio“ menu tab of
CE150.
Action of the switches
When the transceiver is in the “Alignment mode,“ the ac-
tion of the SIDE-1, SIDE-2, and PTT keys are ignored.
All of the action is controlled by the PC.
Caution
Please never turn off the power supply during
alignment. If the power supply is turned off during
alignment, the alignment data will be corrupted.
Alignment
Alignment Mode
In the “Alignment Mode”, the aligned data written in the
radio will be able to re-align its alignment data. The value
of each parameter can be changed to desired position by
“
”/“
” arrow key for data up/down, “
”/“
” arrow key
for channel up/down, direct number input, and drag the
mouse.
Note: when all items are aligned, it is strongly recom-
mended to align according to following order. The detail
information is written in the help document of CE150 PC
Programming Software.
1. PLL Reference Frequency (Frequency)
2. RX Sensitivity (RX Tune)
3. Squelch (SQL/RSSI)
4. TX Power <High/Low>
5. Maximum Deviation <Wide/Narrow>
Please adjust the following items when needed.
¦
CTCSS Deviation <Wide/Narrow>
¦
DCS Deviation <Wide/Narrow>
¦
DTMF Alignment
¦
Sequential Tone
Unit
During alignment, you may select the value among
dBµV, µV (EMF or PD), or dBm by the “UNIT”
box.
When perform the RX Tune and SQL alignment,
the RF level shows this unit according to this set-
ting.
ê
Inline
Wattmeter
50-ohm
Dummy Load
RF Signal
Generator
AF Signal
Generator
SINAD Meter
Power Supply
7.5 VDC
Computer
(CE150)
FRB-6
Deviation
Meter
Frequency
Counter
Transceiver
MIC/SP
D-Sub 15-pin
Connector
MIC IN
SP OUT B
CT-160
SP/LOAD Switch: LOAD
LOAD Switch: 16
Battery Terminal
CLONE Port
CT-104A, CT-106, or CT-171
ANT
Sampling
Coupler
FIF-12
Oscilloscope