Antenna set up

Discussion in 'CB Radio Forum' started by calvinbabb, Nov 29, 2023.

  1. calvinbabb

    calvinbabb Light Load Member

    66
    41
    Apr 28, 2016
    Trenton, Fl.
    0
    Have a skip shooter 7’ antenna, mini 8 feedline, mounted on a bird perch on the mirror. Checking SWR with a MFJ 259. SWR is at 1.5 but showing a 30 ohm resistance. Will this cause issues? IMG_5604.jpeg
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. mike5511

    mike5511 Road Train Member

    3,100
    1,480
    May 15, 2011
    NW Arkansas
    0
    From what I've read, somewhere in the 30s is about normal with that mobile set up. Might do a little bonding from the antenna mount to the door, and then across the hinges to the body and see what happens. P.S. I'd tilt that antenna forward about 20 degrees away from the body and it will improve that SWR. It will blow black up about straight when going down the road. I ran the same thing and braced my antenna with a piece of lexan off the top of the mirror to keep it from flopping around so much. It worked well for me.
     
  4. calvinbabb

    calvinbabb Light Load Member

    66
    41
    Apr 28, 2016
    Trenton, Fl.
    0
    Thx. I have a strap coming in tomorrow should be able to hit mount, door, and chassis one the one strap. 18” long and 10 gauge. I’ve already tilted forward. Puts me approximately 13’6” when running 70 mph.
     
  5. Night Stalker10

    Night Stalker10 Road Train Member

    1,565
    1,128
    Jun 26, 2017
    0
    It looks spot on to me. Your meter shows around 33 ohms of resistance. So if you do the math using a 50 ohm radio, you should get 50/33 = 1.5 for SWR. I'd say enjoy your radio setup, it's looks good.
     
  6. Night Stalker10

    Night Stalker10 Road Train Member

    1,565
    1,128
    Jun 26, 2017
    0
    You may want to cut that grounding strap in half. Rule of thumb is 10 inches or less. Otherwise you run the risk of what's known as a ground loop, which can cause problems too.
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted