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

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 -