Galaxy DX Radios DX2517
Documentation Project

CBTricks.com
Transmitter Alignment
See Alignment Locations

SETTINGS CONNECTION
ADJUST
ADJUST FOR
Remove TP7-TP9 Jumper PCB.
TX OFFSET FREQUENCY:
Set mode to LSB RX
Connect Frequency Counter to TP3.
VR7
Key TX; Adjust for 
16.2675MHz ±20Hz.
TX CARRIER OSCILLATORS:
AM TX Mode

Band D CH. 1 
Connect Frequency Counter to TP6
L25
LSB/ TX mode: Adjust for 10.6975MHz ±20Hz.
Connect Frequency Counter to TP6 
L24
USB/ TX mode: Adjust for 10.6925MHz ±20Hz.
Connect Frequency Counter to TP5
L23
AM/ TX mode: Adjust for 10.6950MHz ±20Hz.
DRIVER BIAS: (2SC2166)
Set Radio to: 

Band D, Ch.1

Mode to USB

MIKE GAIN at minimum.

Remove shorting pcb from 

TP7,TP8, TP9 
Connect DC Ammeter between TP7 and TP9. 
VR12
Key TX adjust for 50-75mA. 
FINAL BIAS: (2SC2312's)
Set Radio to: 

Band D, Ch.1 

Mode to USB

MIKE GAIN at minimum
Remove shorting pcb from 

TP7,TP8, TP9 
Connect DC Ammeter between TP7 and TP8. 
VR11
VR10
Key TX and set VR10 & VR11 to 0mA. Then adjust VR11 for 50mA. and then adjust VR10 for total of 100mA for both.
Replace TP7-TP9 Jumper PCB.
RF AMP CHAIN:
Replace shorting pcb.

Set mode to AM.

Set RF power control to MAX.
Connect wattmeter to ANT output. 
L44, L43, 
L42, L40,



Key TX & adjust (in order) for maximum RF output . Recheck power across entire freq. range.
 
SSB CARRIER BALANCE:
Set mode to USB

Set RF power control to Max

MIKE GAIN to minimum.
Connect wattmeter to ANT output.
 
VR6
Key TX, adjust for min. carrier leakthrough on scope or wattmeter. Recheck on LSB mode. If necessary readjust for best balance of sideband suppression between LSB & USB
SSB APC:
Set mode to USB

Set RF power control to MAX.

MIKE GAIN to minimum.
Connect DC voltmeter from pcb ground to TP7
VR17
In TX,
adjust for 13.0vdc
SSB ALC:
Mode to USB. 

MIKE GAIN to maximum. 

Inject two-tone audio signal of 700Hz and 1900 Hz, 30 mV to Mic input.
Connect wattmeter to ANT output.
 
VR13
In TX, adjust for 
28 watts PEP. 
AM CARRIER POWER:
Set mode to AM, 

MIKE GAIN at minimum.

RF Power control to MAX.
Connect wattmeter to ANT output.
CAUTION! Do not exceed power levels. Damage to power transistors and inability to achieve 100% modulation from insufficient audio power will result.

 VR14

Set RF PWR to MAX.
adjust for 10 watts 
VR18
Set RF PWR to MIN.
Adjust for 1-2 watts
RF METER:
Set mode to AM,

RF Power control to MAX 

MIKE GAIN at minimum.
Connect wattmeter to ANT output.
VR9
Adjust so RF meter agrees with Wattmeter.
AMC:
Mode to AM. 

RF Power control to MAX.

MIKE GAIN to maximum. 

Inject audio signal of 1KHz at 30mV to Mic input.
Connect modulation meter to ANT output.
VR16
Adjust for 100% modulation depth.
MODULATION METER:
Mode to AM. 

RF Power control to MAX.

MIKE GAIN to maximum.

Inject audio signal of 1KHz at 30mV to Mic input.
Connect modulation meter to ANT output.
VR15
Adjust so meter agrees with modulation meter.
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.