VXR-7000U
K66VXR-7000U_Alignment.doc
3
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Adjust
TC2001
(on the TX unit), if necessary, so that the frequency counter reading is within
±100Hz of the programmed Center channel frequency.
Transmitter parameters (excluding PLL)
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The following transmitter parameters can be adjusted from the computer by utilizing the CE-27
Channel/Alignment Diskette. Refer to the onboard help of the CE-27 Channel/Alignment
Diskette for details.
TX P
ARAMETERS
D
ATA
TX Power Level (High)
0 (00h) ~ 255 (FFh)
TX Power Level (Low)
0 (00h) ~ 255 (FFh)
Maximum Deviation
0 (00h) ~ 255 (FFh)
CTCSS Deviation
0 (00h) ~ 255 (FFh)
DCS Deviation
0 (00h) ~ 255 (FFh)
Receiver
PLL VCV (Varactor Control Voltage) Check
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Connect the DC voltmeter between the VCV check point (on the RX Unit) and chassis ground.
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Select the High band edge channel, and confirm that the DC voltmeter reading is 4.1•}0.3 VDC.
PLL Reference Frequency Adjustment
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Connect the Frequency counter to
J3001
on the RX Unit.
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Select the Center channel, adjust
TC3001
(on the RX Unit), if necessary, so that the frequency
counter reading is within ±100Hz of the programmed Center channel frequency.
Receiver parameters (excluding PLL)
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The following receiver parameters can be adjusted from the computer by utilizing the CE-27
Channel/Alignment Diskette. Refer to the onboard help of the CE-27 Channel/Alignment
Diskette for details
RX P
ARAMETERS
D
ATA
Squelch Threshold Level
0 (00h) ~ 255 (FFh)
Squelch W/N Level
0 (00h) ~ 255 (FFh)
RSSI Threshold Level
0 (00h) ~ 255 (FFh)
RX Tune Level
0 (00h) ~ 255 (FFh)
Repeater Mode
Deviation Adjustment
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First ensure that the “DUPLEX” mode of operation is enabled via CE-27 programming.
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Set the
BASE/REPEATER
switch on the front panel of the repeater to the “REPEATER” mode
(the
REPEATER
LED will turn on).
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Inject a signal on the Center channel frequency at a level of 40 dBµ (1 kHz tone @ ±3 kHz
deviation) from the RF Signal Generator into the
RX
antenna jack, and adjust
VR4001
(on the
CNTL Unit) so that the deviation meter reading (TX deviation) is ±3.0 kHz (±0.1 kHz)
deviation.
