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Last modified 2025-09-30

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Galaxy DX-33HP

A picture of Galaxy DX-33HP

SPECIFICATIONS

GENERAL
Type:Citizen band / "Freeband" / Export transceiver
Frequency range: Export mode
25.615-28.305 MHz
10 m mode
28.065-28.505 MHz
Channels / tuning steps:240
Mode:AM / FM
Frequency control:PLL (RCI-145106)
Frequency stability:0.001% @ -30 to +50°C (-22 to +122°F)
Clarifier or Delta tune:No
Power supply:11.7-15.9 VDC
Current drain / power consumption:RX: 300-700 mA
TX: Max 10 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):200*60*235 mm (7.88*2.38*9.25")
Weight:2.27 Kg (5 lb)
Other features:PA. NB/ANL. Echo chamber.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.695 MHz
2nd IF: 455 KHz
Sensitivity: AM: 0.5 uV (10 dB S+N/N)
FM: 1 uV (20 dB S+N/N)
Squelch sensitivity:Less than 0.5 uV (Threshold)
Selectivity:3 KHz (-6 dB)
9 KHz (-50 dB)
Image rejection:65 dB
AF output power / speaker:4 W at ?% distortion / 8 ohm
External speaker connector:TS "Minijack" (3.5 mm), 4-8 ohm




TRANSMITTER SECTION
RF output power: Hi: AM 50 W (PEP), FM 10 W
Mid: 5 W
Lo: 2 W
Modulation system: AM: High- and low-level class B
FM: Variable capacitance
Max FM deviation (Factory set):±? KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:? ohm / 4-pin (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Malaysia, 199x-2009 (Discontinued)
Main PCB: EPT360014B by Ranger
Single sided with through-hole components
Sub PCBs: EPT360022Z - Channel selector board
EPT360032A - LED channel display board
EPT360050Z - Mike jack board
EPT613010Z - ? board
EPTOSSB51J - Echo board
Additional info:
Related documents: User manual (221 KB)
AF amplifier: TA7222AP
RF driver: IRF520
RF finals: Two IRF520
Known markets and approvals: Export
No known approvals for CB use
Sams Photofact #:None
Modifications and fixes:
Reviews:
Options / Accessories:
FC347 External frequency counter