Galaxy
DX Radios DX48T
Documentation Project
CBTricks.com
Transmitter Alignment
See Alignment
Locations
| SETTINGS | CONNECTION |
ADJUST
|
ADJUST FOR |
| TX
OSC: Set Radio to BAND E CH 1 RX AM |
Connect
Frequency counter to TP5 |
L23 |
10.69500Mhz ± 20Hz . |
|
TX Power:
Set radio Band E, CH 1.
AM TX mode. Modulation off. RF PWR control to max. |
Connect RF Power Meter with 50 ohm dummy load to antenna jack. |
L40,L42,
L43,L44 |
max. power with min. spurious emission. Balance Power between Band A CH.
1 and
Band H CH. 40 |
| RF Carrier Adjust: Set radio Band E, CH 1. AM TX mode, Modulation off RF PWR control to max. |
Connect wattmeter with 50 ohm dummy load to output.
Set RF PWR control to min. |
VR14
(high power) VR18
|
40 watts on wattmeter.
10 watts on wattmeter. |
|
RF Power Meter:
Set radio Band E, CH 1.
AM TX mode, Modulation off RF PWR control to max. |
Connect wattmeter with 50 ohm dummy load to output. |
VR9
|
50
on PWR scale.
|
|
AM Modulation:
Set radio Band E, CH 1
AM TX mode RF PWR to max. Inject AF signal 30 mV, 1 KHz to microphone input. |
Connect modulation meter with 50 ohm dummy load to ANT output. |
VR16
|
90%
modulation
|
|
AM Modulation Meter:
Set radio Band E, CH 1
AM TX mode RF PWR to max. Inject AF signal 30 mV, 1 KHz to microphone input. |
Connect modulation meter with 50 ohm dummy load to ANT output. |
VR15
|
90 on the mod scale |
| FM
Deviation: Set radio Band E, CH. 1 FM TX mode. RF PWR to max. Inject AF signal 30 mV, 1 KHz to microphone input. |
Connect deviation meter with 50 ohm dummy load to ANT output. |
VR5
|
4KHz on Deviation Meter |
|
SWR Auto CAL:
Set radio Band E, CH. 1
AM TX mode, Modulation off. RF PWR to max. Set SWR/MOD/PWR switch to SWR position. |
Connect
100 ohm load (2:1) to ANT output. |
VR1
on
(EPA010020B) located on amplifier pcb |
2 on the SWR scale. |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.