Ranger TR-127GK/DX Chapter Alignment, Required Test Equipment, Alignment Procedures

Page 12

TR-127GK/DX

CHAPTER 4

ALIGNMENT

4.0 REQUIRED TEST EQUIPMENT
c DC Power Supply (13.8VDC, 10A)	h Frequency Counter (100 MHz)
d RF Wattmeter (10W)	i RF Signal Generator (100 MHz)
e Multi-meter	j Automatic Distortion Meter
f Automatic Modulation Meter	k Oscilloscope (50 MHz)
g Audio Signal Generator	• Sinad Meter

4.1 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 4-1 Transmitter Test Setup and Figure 4-2 Receiver Test Setup. These test setups are used in part or total during the following adjustments. Refer to page 14 for adjustment locations.

4.1.1 PLL ALIGNMENT

ITEM

U.U.T. SETTING

ADJUST

POINT

MEASUREMENT

VCO

Set radio to CH 1 AM RX mode. Connect Multi-meter to TP9.

L23

2.5 VDC ± 0.1


	Connect Oscilloscope to TP3.	L24	Adjust for max.


AM Frequency	Set radio to CH 19 AM RX mode.
	Connect Frequency Counter to TP3.	L29	16.4900MHz ± 20Hz

AM OSC	Set radio to CH 19 AM TX mode.
	Connect Frequency Counter to TP5.	L23	10.6950MHz ± 10Hz

- 11 -

Image 12

Contents TR-127GK/DX TR-127GK/DX Table of Contents TR-127GK/DX Chapter Specifications GeneralTR-127GK/DX Operation IntroductionControls and Connections Front Panel Page Rear Panel Represents the location of the following connectionsFrequency Chart Channel Channel Frequency MHzOperation Procedure to Receive Procedure to TransmitMicrophone Alternate Microphones and Installation Your Transceiver Microphone SchematicTR-127GK/DX Chapter Circuit Description PLL CircuitReceiver Circuit Transmitter Modulation CircuitTR-127GK/DX Block Diagram Alignment Procedures PLL Alignment T. Setting Adjust Point MeasurementTR-127GK/DX Chapter Alignment Required Test EquipmentTransmitter Alignment T. Setting Adjust Measurement Point Receiver Alignment T. Setting Adjust Measurement PointTransmitter test setup TR-127GK/DX Main PCB Adjustment Location TR-127GK/DX Chapter Maintenance PrecautionsFuse Replacement Periodic InspectionTR-127GK/DX Chapter Diagrams Parts List GeneralTR-127GK/DX Rotary Switch PCB EPT092920Z Part List Reference Ranger Part Description NumberTR-127GK/DX Display PCB EPT092930Z Reference Ranger Part Description TR-127GK/DX Main PCB EPT012910A Copper Side Part List TR−127GK/DX Main PCB L23 TR-127GK/DX Schematic Diagram TR-127GK Mechanical Part TR-127DX Mechanical Part AT0127040A  Copyright 2004, Ranger Communications, Inc