Required Test Equipment; Alignment Procedures - Ranger RCI-2985DX User Manual

DX
RCI-2985
DX
RCI-2995

6.0 REQUIRED TEST EQUIPMENT

AC Power Supply (110V AC)
RF Wattmeter
Multimeter
Automatic Modulation Meter
Audio Signal Generator

6.1 ALIGNMENT PROCEDURES

This transceiver has been aligned at the factory and does not require any adjustments at installation. The
required test equipment listed are used for the test setup or alignment shown in Figure 6-1 Transmitter
Test Setup and Figure 6-2 Receiver Test Setup. These test setups are used in part or total during the
following adjustments and refer to Page 59 for adjustment location.
6.1.1 PLL ALIGNMENT
ITEM U.U.T. SETTING
PLL 2 Set radio to 24.890 MHz, AM RX mode.
VCO Voltage Frequency setting at 29.699 MHz.
Connect Multimeter to TP10.
PLL 1 Set radio to 24.890 MHz, AM RX mode.
VCO Voltage Frequency setting at 29.699 MHz.
Connect Multimeter to TP11.
AM Frequency Set radio to AM RX mode.
Set Clarifier Control to 12 o'clock.
Connect Frequency Counter to TP16.
TX Frequency Set radio to AM TX mode.
Connect Frequency Counter to TP16.
VCO Output Set radio to 28.000 MHz, AM RX mode.
Connect Oscilloscope to TP3.
AM OSC Set radio to AM TX mode. Mod off
Connect Frequency Counter to TP5.
USB OSC Set radio to USB TX mode. Mod off.
Connect Frequency Counter to TP5.
LSB OSC Set radio to LSB TX mode. Mod off.
Connect Frequency Counter to TP5.
6.1.2 TRANSMITTER ALIGNMENT
Frequency Counter (100 MHz)
RF Signal Generator (100 MHz)
Automatic Distortion Meter
Oscilloscope (50 MHz)
Sinad Meter
ADJUST
POINT
L14
L13
VC2
VR8
L17
L18
L20
L19
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CHAPTER 6
ALIGNMENT
MEASUREMENT
1.0 VDC ± 0.1
≤ 4.5 VDC
1.0 VDC ± 0.1
≤ 6.5 VDC
10.100 MHz ± 10 Hz
10.100 MHz ± 10 Hz
Maximum Output
38.6950 MHz.
10.6950 MHz ± 10
Hz
10.6975 MHz ± 10
Hz
10.6925 MHz ± 10
Hz