Question about Galaxy Radios DX-99V 40-Channels Base CB Radio

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Galaxy 99 has same frequency 27.185 on am also on upper side and lower side band how come?? thank you

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The frequency doesn't change when you change to USB or LSB. Basically the AM frequency takes up a certain amount of space, known as bandwidth, so it could fill in for example use 50 hertz above and below 27.185 giving 100 hertz bandwidth. When you use sidebands the am bandwidth is split in two so the upper side band would use the 50 hertz above 27.185 and the lower side band would use the 50 hertz below. The idea is that twice as many operators can operate without interference.

Posted on Sep 17, 2010

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  • AnyMHz.com
    AnyMHz.com Mar 02, 2011

    Radio Channels stay the same.. the SSB, AM, FM, CW, ie.... are just modes, they are just different modulation schemes the frequency/channel will stay the same.. on any radio..

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Looking to find the frequenecies of the upper and lower channels



  • Hi I can help.
  • For the Grant 40 channel CB there are 40 frequencies I will list below.
  • When you refer to the upper and lower channels for this raidio you must mean USB (Upper Side Band) and LSB (lower side band).
  • This is called single side band modulation which is to say the the carrier is removed from the upper or lower sideband depending on which your pick and the signal goes farther on less power.
  • So the upper and lower side bands are the same frequency just upper side band or lower sideband.
  1. 26.965 MHz 21. 27.215 MHz
  2. 26.975 MHz 22. 27.225 MHz
  3. 26.985 MHz 23. 27.255 MHz
  4. 27.005 MHz 24. 27.235 MHz
  5. 27.015 MHz 25. 27.245 MHz
  6. 27.025 MHz 26. 27.265 MHz
  7. 27.035 MHz 27. 27.275 MHz
  8. 27.055 MHz 28. 27.285 MHz
  9. 27.065 MHz 29. 27.295 MHz
  10. 27.075 MHz 30. 27.305 MHz
  11. 27.085 MHz 31. 27.315 MHz
  12. 27.105 MHz 32. 27.325 MHz
  13. 27.115 MHz 33. 27.335 MHz
  14. 27.125 MHz 34. 27.345 MHz
  15. 27.135 MHz 35. 27.355 MHz
  16. 27.155 MHz 36. 27.365 MHz
  17. 27.165 MHz 37. 27.375 MHz
  18. 27.175 MHz 38. 27.385 MHz
  19. 27.185 MHz 39. 27.395 MHz
  20. 27.205 MHz 40. 27.405 MHz.
  • If you have any comment please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

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1 Answer

Sideband freq


That is wrong , I used to have a freq. counter that only read when you applied RF to it on my old Tempo rig and I ran lower 37 and upper 35 so I would key the radio on am and tune the vfo to that frequency and would be on frequency with everone else,I remember hearing that once long ago but it's not true.

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Switching radio bands


what radio do you have? does it even have sideband channels? some radios don't come with them, of fm or upper or lower side bands and short wave

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