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RF interference from 2 meter ham radio

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Rujack, Jun 28, 2019.

Page 2 of 2
  1. Jun 28, 2019 at 12:06 PM
    #21
    Rujack

    #21
    Rujack [OP] Stop Global Whining

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    Nope. I used a smaller hole about 4-6" away from the main harness boot.
     
    Rujack, Jun 28, 2019
    #21
  2. Jun 28, 2019 at 12:09 PM
    #22
    Jibbs

    #22
    Jibbs "When in doubt, throttle out!"

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    3-6 inches long huh?

    Well, from now on I know what Im calling mine!
     
    Jibbs, Jun 28, 2019
    #22
    Gunshot-6A[QUOTED] likes this.
  3. Jun 28, 2019 at 12:16 PM
    #23
    vicali

    #23
    vicali Touch my camera through the fence

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    Does it happen during regular tx or just APRS?
     
    vicali, Jun 28, 2019
    #23
    Gunshot-6A likes this.
  4. Jun 28, 2019 at 12:22 PM
    #24
    OnHartung'sRoad

    #24
    OnHartung'sRoad -So glad I didn't take the other...

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    Somewhere in the Mojave Desert...
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    That’s pretty funny, hmmm- I hate those ads when I am filling up.

    You should have heard what he used to do to the poor Jack in the Box employees when the car in front was ordering, it cut into their drive through intercom as well! :rofl:

    I started to hate waiting for food with him because he’d always mess up the drive through orders ahead of us with it. High school pranks...
     
    OnHartung'sRoad, Jun 28, 2019
    #24
    Rujack[QUOTED][OP] likes this.
  5. Jun 28, 2019 at 12:24 PM
    #25
    dfanonymous

    #25
    dfanonymous Well-Known Member

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    Damn, you told him to soon. I was going to get my photoshop on!!!!
     
    dfanonymous, Jun 28, 2019
    #25
    Gunshot-6A[QUOTED] likes this.
  6. Jun 28, 2019 at 12:53 PM
    #26
    ChrisK7UND

    #26
    ChrisK7UND Well-Known Member

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    You need to put either a watt meter or an analyzer on the feed line and see how the antenna is matching to the vehicle. IF the impedance is way off and/or power is being reflected back to the radio (Which I suspect) you have stray RF all over inside the cab and such. IF the signal can be effectively radiated from the antenna system this will not occur. My guess is that you have a terrible impedance match at the antenna and it is not matching to the vehicle and you have excessive RF coming back down the cable (Common Mode Current). Just because an antenna looks good where you mounted it, does NOT mean it is working properly. As an FYI I am a commercial LMR Two-Way Technician and install radios professionally, (Police, Fire, Business).
     
    ChrisK7UND, Jun 28, 2019
    #26
    Taco_Craig, Rujack[OP] and Dravnx like this.
  7. Jun 28, 2019 at 1:57 PM
    #27
    Rujack

    #27
    Rujack [OP] Stop Global Whining

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    Good question. Can’t say for sure as I usually don’t have the audio player on when the rig is on, except for APRS.

    I’ll try it now.
     
    Rujack, Jun 28, 2019
    #27
  8. Jun 28, 2019 at 2:03 PM
    #28
    Rujack

    #28
    Rujack [OP] Stop Global Whining

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    I don’t have a nice analyzer, just a cheapie Surecom Sw-102
    $58 Mcbazel Surecom SW-102 Digital VHF/UHF 125-525Mhz Antenna Power & SWR Meter
    https://www.amazon.com/dp/B01D86IKIQ?ref=ppx_pop_mob_ap_share

    I’ll hook it up again but I’m pretty sure I was putting out ~47 out of 50 watts.
     
    Rujack, Jun 28, 2019
    #28
  9. Jun 28, 2019 at 2:15 PM
    #29
    Rujack

    #29
    Rujack [OP] Stop Global Whining

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    Ok, so I was wrong: the interference seems to be with the truck. When the phone isn’t plugged into the truck’s USB port, and I’m connected over Bluetooth, it doesn’t happen.

    If I am connected via usb, keying the mic or beaconing will either break the connection / kick the phone off of the stereo altogether, or it will cause the playback to pause or shuttle.
     
    Rujack, Jun 28, 2019
    #29
  10. Jun 29, 2019 at 4:10 PM
    #30
    Rujack

    #30
    Rujack [OP] Stop Global Whining

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    Saturday afternoon bump
     
    Rujack, Jun 29, 2019
    #30
  11. Jun 29, 2019 at 10:17 PM
    #31
    Rujack

    #31
    Rujack [OP] Stop Global Whining

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    Sorry, nother bump. Want to figure this out...
     
    Rujack, Jun 29, 2019
    #31
  12. Jun 29, 2019 at 10:25 PM
    #32
    OnHartung'sRoad

    #32
    OnHartung'sRoad -So glad I didn't take the other...

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    Somewhere in the Mojave Desert...
    Vehicle:
    2017 Tacoma OR 4x4 (formerly 2002 OR 4x4, 1995 4x4 4Runner, 1985 4x4 Toy PU) ... and RIP’s (rust in pieces) to a Bronco II 4x4 & S10 Blazer 4x4
    Sorry, I’m at a loss to help. But Perhaps finding a local repeater or RACES group to help you out will be successful - those guys will have the right equipment and would probably love to help find and take care of it. Good luck!
     
    OnHartung'sRoad, Jun 29, 2019
    #32
    Rujack[OP] likes this.
  13. Jun 29, 2019 at 10:26 PM
    #33
    Rujack

    #33
    Rujack [OP] Stop Global Whining

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    Yep I’ll jump on a local net Monday am if I haven’t figured it out...
     
    Rujack, Jun 29, 2019
    #33
    OnHartung'sRoad[QUOTED] likes this.
Page 2 of 2

Products Discussed in

Mcbazel Surecom SW-102 Digital VHF/UHF 125-525Mhz Antenna Power & SWR Meter
$57.99
Ferrite Core 1/2 Cord Noise Suppressor (2 Pack)
$12.95
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