cb swr

Discussion in 'CB Radio Forum' started by will1969, Apr 25, 2014.

  1. will1969

    will1969 Bobtail Member

    3
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    Jan 31, 2014
    0
    i have a connex 3300 with a wilson 2000 antenna my swr is 2 on ch 1 and 2 on ch 40 how can i get it down
     
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  3. billf947

    billf947 Bobtail Member

    10
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    Mar 16, 2014
    toms river nj
    0
    im knew to this but seems like antenna ground and length are a big part....
     
  4. 43mack

    43mack Bobtail Member

    18
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    Apr 20, 2014
    0
    most likely a grounding/bonding issue, you can do a continuity test between the antenna mount and the frame of the vehicle and the radio mount and the frame as well because all these equate to good or bad counterpoise which the antenna needs which is a false earth.

    if the vehicle is mostly fiberglass then there may not be much help but a ground to the frame is essential in any case.
     
  5. roshea

    roshea Road Train Member

    okay, that is both ends of the band and still acceptable. What is the swr in the middle, like 19? That should be the lowest reading and would naturally increase as you move further away from that frequency. Really not enough information without that middle of the band measurement.
     
  6. 43mack

    43mack Bobtail Member

    18
    4
    Apr 20, 2014
    0
    depends on how picky he is and my instructions should improve the swr readings and stop any tx lobes or stop rejections or reflection that the antenna might experience.
     
  7. BigBearNY

    BigBearNY Light Load Member

    160
    37
    Mar 14, 2014
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    The wison can be tuned by loosening the setscrew and adjusting the length. since you have thje same at both ends of the band... I would start by tuning for the lowest swr mid band (ch, 19) and proceed from there.
     
  8. 43mack

    43mack Bobtail Member

    18
    4
    Apr 20, 2014
    0
    if it the same on both ends of the band which way is he gonna go, lengthen or shorten?
     
  9. BigBearNY

    BigBearNY Light Load Member

    160
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    Mar 14, 2014
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    Does it really matter? Personally I never listened to the formula... If hi on one or low on the other... move it this way or that. Let's face it 2 is a perfectly acceptable number. But if I am performance tuning for the best possible SWR, I am going to try it longer and shorter. Since we are talking a hex head screw and a few seconds either way I would be willing to try a few different lengths before settling.
     
  10. roshea

    roshea Road Train Member

    That was the point to my question, what is the swr on 19. It is pointless to make adjustments if you don't have a measurement for the starting point.
     
  11. BigBearNY

    BigBearNY Light Load Member

    160
    37
    Mar 14, 2014
    0
    Yep, was agreeing with you :)

    And pointing out how his setup would be pretty easy tom tune.
     
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