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Thread: ASTRO25 tuning values

  1. #1
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    Default ASTRO25 tuning values

    With so many converting radios from one split to another it might be usefull to have some basic tuning values for the various splits. You radio probably will not operate 100% with these values but they should be close enough to confirm good codeplug/bandsplit and tuning.


    NOTE: these are for reference only you sould realign your radio properly.

    here is a set of known working VHF J split ASTRO Spectra


    osc (161.9875) 71
    high (136.0125)(145.0125)(157.0125)(161.9875) 85,84,84.84
    med (136.0125)(145.0125)(157.0125)(161.9875) 83,83,83,84
    low (136.0125)(145.0125)(157.0125)(161.9875) 109,108,108,108
    dev (136.0125)(145.0125)(157.0125)(161.9875) 44,49,42,42
    lmt (140.5750)(151.0750)(159.4750) 15018,12552,12518
    cnt (136.0125)(145.0125)(157.0125)(161.9875) 7,7,7,7

    Please feel free to copy down your tuning info and post it here for others to use as a reference.


  2. #2
    newtomotorola No Longer Registered

    Default

    Working XTS5000 UHF Range 1 band (380-470 MHz),

    osc (469.925) 175
    tx high (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 87,91,94,97,102,102,106,109,112,116
    tx med (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 47,47,47,47,47,47,47,47,47,47
    tx low (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 52,54,56,58,62,62,64,66,68,71
    tx dev bal (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 15,23,28,32,32,23,29,32,33,32
    tx dev lmt (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 17408,17215,17344,16768,17472,17600,16960,16960,17 088,17280

    rx fe fil (380.025)(390.025)(400.025)(411.025)(424.9250)(425 .0250)(435.0250)(445.0250)(457.0250)(469.9250) 22,29,37,45,55,55,63,71,80,92

  3. #3
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    Default

    here is a set of known working VHF K split ASTRO Spectra

    TX osc (173.9875) 75
    TX high (146.0125)(150.0125)(162.0125)(173.9875) 30,30,30,30
    med (146.0125)(150.0125)(162.0125)(173.9875) 60,60,60,60
    low (146.0125)(150.0125)(162.0125)(173.9875) 60,60,60,60
    cnt (146.0125)(150.0125)(162.0125)(173.9875) 13,13,13,13
    dev (146.0125)(150.0125)(162.0125)(173.9875) 44,50,43,43
    lmt (147.9875)(155.0250)(167.0250) 15476,13235,13075

  4. #4
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    Default

    XTL1500 UHF "S" split 450-512

    Reference Oscillator - (519.975) = 254. Found it 300hz low in frequency, and adjusted softpot down to 240 to raise frequency.

    Receiver Front End Tuning (typical RSSI around 52, adjustments did little to improve):
    450.075 = 85, 455.625 = 95, 463.625 = 110, 473.325 = 128, 484.925 = 142
    485.075 = 142, 490.875 = 154, 496.675 = 166, 508.325 = 193, 519.925 = 215

    Sensitivity at 443Mhz = 0.25uv/12db SINAD (out of above range). 452Mhz and 469Mhz same spec of 0.25uV. Interesting how the tuning numbers above seem to be a continuation of the "Q" range 380-470 model.