Receiver; Receiver Parameters (Excluding Pll); Rx Unit Alignment Points - Vertex Standard VXR-7000 Service Manual

Receiver

PLL VCV (Varactor Control Voltage) Check
Connect the DC voltmeter between the VCV check
point (on the RX Unit) and chassis ground.
Select the Low band edge channel, and confirm that
the DC voltmeter reading is 0.9 V ~ 1.5 V (TYP C) or
1.6 V ~ 2.0 V (TYP A).
Select the High band edge channel, and confirm that
the DC voltmeter reading is 2.7 V ~ 4.0 V (TYP C) or
3.4 V ~ 4.0 V (TYP A).
PLL Reference Frequency Adjustment
Connect the Frequency counter to J3001 on the RX
Unit.
Select the Center channel, adjust TC3001 (on the RX
Unit), if necessary, so that the frequency counter read-
ing is within ± 100 Hz of the programmed Center chan-
nel frequency.

Receiver parameters (excluding PLL)

The following receiver parameters can be adjusted from
the computer by utilizing the CE27 Channel/Alignment
Diskette. Refer to the onboard help of the CE27 Chan-
nel/Alignment Diskette for details.
RX Parameters
Squelch Threshold Level
Squelch W/N Level
RSSI Threshold Level
RX Tune Level

RX Unit Alignment Points

Alignment
Data
0 (00h) ~ 255 (FFh)
0 (00h) ~ 255 (FFh)
0 (00h) ~ 255 (FFh)
0 (00h) ~ 255 (FFh)
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