Galaxy
DX Radios DX88HL
Documentation Project
CBTricks.com
Receiver Alignment
See Required
test equipment
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. |
| SSB
IF SENSITIVITY: Set mode to USB. RF Generator output to 26.965 MHz at Adjust Coarse & Fine Clarifier 1uV, modulation off. Adjust fine clarifier for peak reading on S-meter. |
Same as above |
L13, L14 |
Adjust L13, L14 for maximum as in Step 1. |
| 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. |
| SSB
S-METER: Set mode to USB. Increase RF Generator output to 26.966 MHz100uV (-67 dBm) unmodulated. Set Squelch fully counterclockwise. |
RF Generator to ANT Jack |
VR2
|
Adjust for S-9 reading. |
| 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. |
| SSB
SQUELCH RANGE: Set mode to USB. |
Same as above |
VR3
|
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. |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.