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Really bad luck with alignments, or...?

Discussion in 'General CB Services Discussion' started by buickid, Mar 6, 2013.

  1. RADIOOMAN

    RADIOOMAN Active Member

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    My experience is that those pots are touchy, but should not readjust themselves from the radio being jarred.
    I supspect that might be symptomatic of a pot that is defective with regards to its mechanical stability and if replaced then that symptom might go away.

     

  2. Watergate

    Watergate Well-Known Member

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    A former coworker took his new Cobra 29 LX in for a clip and snip job. That radio would move back and forth off frequency bad enough to notice it on AM. All depending on how rough the road was. The hackmaster who laid his golden screwdriver upon that radio told him it was junk and he should buy a new radio.

    He ended up sending it off, the adjustment pot was replaced and the radio was un-hacked. The pot was so loose that they said they could jiggle the radio and it would turn.
     
  3. Mudfoot

    Mudfoot Elmer

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    I don't advocate this tuning method. I posted for anecdotal content. Do this ghetto tune at your own risk.

    It will work close enough for government use.
     
  4. Robb

    Robb Yup

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    Yes, it will get ya close. But it is highly dependent on the quality of the radio you are tuning it to. If that radio is also out of adjustment slightly; then so will the radio you are tuning. But it will work in a pinch.

    The real trick is to get that 'whoop whoop whoop' to slow way down. If you can get it to go 'whhhhhhhhhhoooooooooooooooop' - and then stop; then you are even closer to tune.
     
    #19 Robb, Mar 6, 2013
    Last edited: Mar 6, 2013
  5. Mudfoot

    Mudfoot Elmer

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    Can you get Snake to make a video of this tuning method? It does seem meet his tuning by "ear" claims.

    Call it the: Super Whoooop Whooooop tune.
     
    tecnicoloco likes this.
  6. Robb

    Robb Yup

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    LOL!

    I mean L O L !
     
  7. ExitThirteen

    ExitThirteen Grumpy and Cranky

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    Whooooooooooooop there it is!!



    ~Cheers~
     
  8. Watergate

    Watergate Well-Known Member

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    Hmm. This whole time I thought that song was a metaphorical reference to ones achievement on the path to enlightenment after finally glimpsing the inner soul.
     
  9. RADIOOMAN

    RADIOOMAN Active Member

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    This thread has officially degenerated to a level that is lower than worm poop.
     
    1 person likes this.
  10. Robb

    Robb Yup

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    OK OK; will try to pick it up a notch . . .

    This 'whooop whooooop' tuning method is just a temporary means to get the radio reasonably back on TX freq. Sorry about that.

    In a real alignment the VCO voltage and output signals are set and peaked respectively. Then the Loop Oscillators are tuned for proper freq on AM/USB/LSB. Once this is done; then the TX Offset freq is set. Lastly, the Output Oscillators are tuned for AM/LSB/USB.

    Using an accurate freq counter is essential for best results. Using the 'whooop' method doesn't take into account that at any one of those adjustment may also be off. They need to be done to place the SSB envelopes position correctly in relationship to the AM carrier to keep the radio's RX/TX consistent. Doing this process by ear can NEVER accomplish this end. Just used in a pinch - is fine. Besides, there well may be something wrong with that radio - even if it is new.
     
  11. RADIOOMAN

    RADIOOMAN Active Member

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    That's much better.
    Thank you.
     
  12. buickid

    buickid Active Member

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    Got it lined up to a fellow local's radio over the air. We'll see how long it holds and if I can get more reports later this week, thanks for the advice guys! (y)
     
  13. Robb

    Robb Yup

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    Well; it is 'whoooped' - for now . . .
     
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  14. RADIOOMAN

    RADIOOMAN Active Member

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    Good deal..... keep us posted about this.
     
    1 person likes this.
  15. Mudfoot

    Mudfoot Elmer

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    I actually need to do this to my 979 one of these days.
     

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