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MARS/CAP mod?

Discussion in 'Amateur Radio Modifications' started by Se7en, Aug 3, 2012.

  1. Se7en

    Se7en
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    IS this correct for the VX-7R: Yaesu VX-7 R (VX 7 R VX7R) transceivers mods reviews software and diagrams


    Remove the battery pack.


    Remove the sticker/cover seal for the pressure sensing unit (SU-1), in the battery compartment. This is the black strip above cellular warning label and is where the SU-1 option goes.


    1 Locate row of eight jumpers. They are numbered.


    2 For Mars/Cap, remove solder jumper 5.


    3 For Freeband, remove solder jumper 4 and 5.


    4 Reset microprocessor. (Press and hold in the 4, band, and v/m keys while turning the radio on.


    5 ENJOY

    TX Frequencies:
    Freeband: 40-224.995Mhz and 300-579.995Mhz
    Mars/Cap: 50Mhz-54Mhz, 140Mhz-174Mhz, 222Mhz-225Mhz, and 420Mhz-470Mhz.




    I guess there is also a SOFTWARE hack without having to unsolder things on the board?
     

  2. shepsvettes

    shepsvettes
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    mod

    Yes that's correct.
     
  3. Se7en

    Se7en
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    I think id benefit from the freeband mod vs mars/cap.

    Ty for the reply.
     
  4. Happy_Hamer

    Happy_Hamer
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    Personally I don't see a benefit at all.

    I dont use GMRS/MURS/FRS enough to risk it, thats just me
     
  5. Se7en

    Se7en
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    Risk burning the ht or risk getting in trouble ?
     

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