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Galaxy DX 44HP 10 Meter Mobile Radio | Radioaficion Ham Radio

Galaxy DX 44HP 10 Meter Mobile Radio


Galaxy DX 44HP 10 Meter Mobile Radio w/Dual MOSFET Finals

this Version of the "44" has all the features missing from the DX 33HP2 and the copycat models it has inspired. It even has ten features the old DX 44V did not have.

Galaxy DX44HP 10 Meter Radio

Galaxy DX44HP 10 Meter Radio with Echo and Talkback

Galaxy has re-introduced the popular Galaxy 44 10 meter radio with many improvements over the original. The new DX44HP outputs 50 watts PeP from dual MOSFET transistors, a large easy to read meter for improved visibility. This radio also features additional "chrome" accents throughout the faceplate for a very clean and an improved appearance versus it's predecessor.

The circuit board design hasn't deviated much from original 44V, which makes this an easy choice for someone looking for the Galaxy 44V but wanting more power.

DX44HP Specifications:

  • 50 Watts PeP from dual MOSFET transistors
  • 10 Meter TX/RX Coverage 28.015~28.465 MHz
  • Frequency Control: Phase Lock Loop (PLL) synthesizer.
  • Frequency Tolerance: 0.005%
  • Frequency Stability: 0.001%
  • Operating Temperature: -20C to +50C.
  • Microphone: Plug-in dynamic; with push-to-talk switch and coiled cord.
  • Input Voltage: 13.8V DC nominal, 15.9V max, 11.7V min. (Positive or negative ground).
  • Size: 2-3/8” (H) x 7-7/8” (W) x 9-1/4” (D).
  • Meter: Illuminated; indicates relative output power, received signal strength and SWR.
  • Frequency Response: 300 to 2500 Hz.
  • Built-in Speaker: 8 ohms, round.

DX44HP Features:

  • MOD LAMP: When switched on, this Modulation indicator will illuminate as you speak into the microphone. When you speak louder, it appears bright because it is on nearly 100 percent of the time and when you speak softer, it appears dimmer because it is flickering on and off. It does not glow at all when there is no modulation. This lamp operates in all modes.
  • MICROPHONE JACK: Used to connect microphone for voice source.
  • SQUELCH CONTROL (outer dual concentric): This control is used to cut off or eliminate receiver background noise in the absence of an incoming signal. For maximum receiver sensitivity it is desired that the control be adjusted only to the point where the receiver background noise or ambient background noise is eliminated. Turn fully counterclockwise then slowly clockwise until the receiver noise disappears. Any signal to be received must now be slightly stronger than the average received noise. Further clockwise rotation will increase the threshold level which a signal must overcome in order to be heard. Only strong signals will be heard at a maximum clockwise setting.
  • OFF/ON/VOLUME CONTROL (inner dual concentric): Turn clockwise to apply power to the unit and to set the desired listening level. During normal operation, the VOLUME control is used to adjust the output level obtained either at the transceiver speaker or the external speaker, if used.
  • RF GAIN CONTROL: (outer dual concentric). Use to reduce the gain of the received signal under strong signal conditions.
  • MIC GAIN CONTROL: (inner dual concentric). Adjust the microphone gain in transmit and PA modes. This controls the gain to the extent that full talk power is available several inches away from the microphone.
  • DIMMER CONTROL: Controls the brightness of the meter lamp, channel display digits, +10KHz LED, RB LED and the RX/TX LED. It does not control the brightness of the SWR alert LED. That LED is always at maximum brightness.
  • RF POWER CONTROL: This control allows the user to adjust RF power output.
  • CHANNEL SELECTOR: This switch selects any one of the forty channels desired. The selected channel number is on the LED readout directly above the Channel Selector knob.
  • RX/TX LED: This LED lights red to indicate the unit is in the transmit mode. It lights blue to indicate the unit is in the receive mode.
  • METER: Indicates received signal strength, transmitter output power and SWR.
  • BAND SELECTOR: This switch is used to select the band.
  • TIME CONTROL: (outer dual concentric). This control is used to set the interval of the echo effect.
  • ECHO CONTROL: (inner dual concentric). This control is used to set the amount of the echo effect.
  • SWR/OFF/R.B. SWITCH: This switch controls the function of the meter during the transmit mode. In the “SWR” position, the meter indicates the Standing Wave Ratio (SWR) of your antenna (accurate at maximum power output). There are no adjustments because the SWR circuit in this radio calibrates itself automatically. When in the RB position, the radio transmits an audio tone at the end of your transmission to indicate that transmission has ended. As a courtesy to others, use the Roger Beep only when necessary. The SWR function and the RB function cannot be used at the same time.
  • MODE (PA/FM/AM) SWITCH: This switch is used to select PA, FM, or AM mode of operation. When you set to PA position, the transceiver acts as a public address amplifier. Before operating PA, you must first connect an external PA speaker (8 ohm, 4-watt) to the PA Speaker jack on the unit rear panel.
  • TALKBACK/ECHO/OFF: When this switch is in the TALKBACK position, it is used to monitor your own voice in the radio speaker. For example, you could use this feature to compare different microphones. When in the ECHO position, it will add an echo effect to your voice. Both Echo and Talkback are off when this switch is in the OFF position.

Galaxy DX44HP 10 Meter Radio

Donwload DX44HPmanual.pdf - on Nov 19, 2011 4:25 PM by Galaxy Radios (version 1)

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