Galaxy DX Radios DX66V
Documentation Project

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Transmitter Alignment
See Required test equipment
See Alignment Locations

SETTINGS CONNECTION
ADJUST
ADJUST FOR
CARRIER OSCILLATOR OFFSET, AM TX ADJUST:
TX Mode
Freq. to 26.965MHz Band E
Connect Frequency Counter to (top bare lead of R151).

L26

AM/TX mode: Adjust for 10.6950MHz ±20 Hz.

RF AMP CHAIN:
Set mode to AM.
Set RF power MAX .
Connect wattmeter to ANT output.
L43, L44,
L42, L40,
L33
Key TX & adjust (in order) for maximum RF output . Recheck power at lowest & highest channels; readjust if necessary for balance across entire bandwidth.
AM CARRIER POWER HIGH:
Set mode to AM,
MIKE GAIN at minimum.
RF Power to MAX.
Connect wattmeter to ANT output.

VR13

Key TX; adjust for for 7 watts
CAUTION! Do not exceed this level. Damage to power transistors and inability to achieve 100% modulation from insufficient audio power will result.

AM CARRIER POWER LOW:
RF Power to LO .
Connect wattmeter to ANT output.
VR16
Key TX & adjust for 1 Watt output
RF METER:
Set mode to AM,
MIKE GAIN at minimum.
Connect wattmeter to ANT output.
VR8
Adjust so panel meter agrees with Wattmeter.
AMC:
Mode to AM.
MIKE GAIN to maximum.
Inject audio signal of 1KHz 30mV (-18 dBm) at MIC jack.

Connect modulation meter to ANT output.
VR14
Adjust for 100% modulation depth.
FM DEVIATION:
Mode to FM
MIKE GAIN to maximum.
Inject 1 KHz, 30 mV audio signal at mike jack.
Connect deviation meter to ANT output.
VR5
Adjust for total deviation of 4.5 KHz.

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Disclaimer: Although the greatest care has been taken while compiling these documents,

we cannot guarantee that the instructions will work on every radio presented.