Galaxy DX 99

Discussion in 'CB Radio Forum' started by Touk, Dec 18, 2013.

  1. cadillacdude1975

    cadillacdude1975 Road Train Member

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    Mar 20, 2010
    Chattanooga, TN
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    i dont know if you all are aware of this, but Galaxy released the 99 again. the DX99V2.

    View attachment 59833
     
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  3. nero8762

    nero8762 Bobtail Member

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    Jul 7, 2013
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    Newbie here. How does cold affect the radio?
     
  4. Turbo-T

    Turbo-T Road Train Member

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    When the radio is cold, and you try to use the sideband, it will be off frequency.....you can tune it on frequency but as it warms up then you'll again be off frequency. You'll have to keep adjusting the clarifier. Some do not like that.

    Not all sideband radios are like this....some are very stable on SSB regardless of how hot or cold it is. But Galaxy is not one of them.

    Where Galaxys shine, is on AM and for those who like looking at a pretty starlight face with a big meter.

    Galaxy radios are also known for cold solder joints which can play havoc on the radio depending on how hot or cold it is and how much bouncing around the truck does.
     
  5. Powder Joints

    Powder Joints Subjective Prognosticator

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    Rosamond, SoCal
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    Well there is a reference crystal in the radio, when the temp of this crystal changes so does its output frequency. So when the base frequency that is multiplied by to the operating frequency, so does the operating frequency.

    When Galaxay 99's transmit they generate a lot of heat, which warms the crystal which changes the frequency.

    Basicly thats it.
     
  6. Ridgeline

    Ridgeline Road Train Member

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    Dec 18, 2011
    Michigan
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    Again to repeat my point these radios are made poorly to begin with.

    The odd thing is about the frequency tolerance of the crystals in these radios is I've never heard this anywhere but in export radios. I am thinking that they are using very cheap 1000PPM tolerance crystals and not a good design to compensate for the temperature swing.
     
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