Galaxy DX Radios DX33HP (MOSFET Final)
Documentation Project

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Receiver Alignment
See Alignment Locations

SETTINGS CONNECTION
ADJUST
ADJUST FOR
AM/FM RF & IF SENSITIVITY:
Frequency to 26.965 MHz
Mode AM
Clarifier controls at center detent.
RF GAIN fully clockwise.
SQUELCH fully counter clockwise
NB/ANL to OFF
VOLUME to comfortable level.
RF Generator output to 26.965 MHz at 1uV modulated 30% with 1 KHz audio tone.
Connect AF VTVM or scope across speaker terminals.
RF Generator to ANT Jack
(in order)
L6, L7
L8, L10
L11, L12
L3, L4
Adjust for max. output reading on AF VTVM or Scope.
Set mode to AM.
Set frequency to Ch.1 lowest band, then Ch.40 highest band as required.
Same as above
L6, L7
Recheck sensitivity across full radiobandwidth. If necessary, retune L6 & L7 to balance RF sensivity across bandwidth.
FM DETECTOR:
Mode FM.
Set FM RF Generator to 26.965 MHz 0.5uV deviated 3 KHz with 1KHz audio tone.
Reduce VOLUME as required.
Connect AF VTVM or scope to IC2 Pin 7.

RF Generator to ANT Jack

L5

Adjust for maximum audio output.
AM/FM S-METER:
Set mode to AM.
RF Generator output to 100uV unmodulated.
Set Squelch fully counterclockwise.
Same as above
VR1
Adjust for “S-9” meter reading.
AM/FM SQUELCH RANGE:
Increase RF Generator output to 10mV.
Set Squelch Control fully clockwise.
Same as above
VR4
Adjust to the squelch just closes.
NOISE BLANKER:
Set radio to 26.975MHz
Set mode to AM.
Set RF generator output to 26.965MHz at 1000uV unmodulated.
Set NOISE BLANKER switch to “ON”.
Connect DC Voltmeter to TP1 (Cathode of D2).

L1, L2

Adjust for maximum DC voltage.

 


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