1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Clean VHF/CB radio installs

Discussion in '3rd Gen. Tacomas (2016+)' started by FoleySwampPlotts, Feb 10, 2016.

  1. Jun 19, 2021 at 4:15 PM
    #1961
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    Your SWR meter is screaming for help.
     
  2. Jun 19, 2021 at 4:33 PM
    #1962
    C41n

    C41n Gandalf Da Grey

    Joined:
    Jul 24, 2019
    Member:
    #300113
    Messages:
    1,118
    First Name:
    Anthony
    Portland, OR
    Vehicle:
    2020 DCSB OR MT
    Where should the strap be?

    I removed it and retested. The SWR meter is acting less dump but the SWR readong is maxed out. There is no ground at all without the strap.
     
  3. Jun 19, 2021 at 4:38 PM
    #1963
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    Is the mount grounded? Only way to know for sure is to check for continuity with a meter. A quick and dirty way to check is to disconnect your ground from the radio, but not the positive lead. If the radio still comes on, you have ground at the mount. You can add that strap if you want, but it might be easier to just try to get metal to metal contact at the mount itself (ie, remove paint, etc.).

    I've never used a "fire ring" antenna coax, but it looks like it's not grounded at the mount.
     
    HisDad likes this.
  4. Jun 19, 2021 at 4:40 PM
    #1964
    C41n

    C41n Gandalf Da Grey

    Joined:
    Jul 24, 2019
    Member:
    #300113
    Messages:
    1,118
    First Name:
    Anthony
    Portland, OR
    Vehicle:
    2020 DCSB OR MT
    The mount is not grounded. I was trying to prevent rust by using the strap instead of grinding off power coating on the mount.
     
  5. Jun 19, 2021 at 4:53 PM
    #1965
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    I see. Yeah, you can do that. I think you have the right idea. You just had the strap connected directly to the antenna.
     
  6. Jun 19, 2021 at 5:06 PM
    #1966
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    I checked out the "fire ring" mount. Looks like you need to clear away a little paint from the bottom of the mount between it and the fire ring. Looks like that's how the coax braid grounds.
     
    C41n likes this.
  7. Jun 19, 2021 at 5:14 PM
    #1967
    C41n

    C41n Gandalf Da Grey

    Joined:
    Jul 24, 2019
    Member:
    #300113
    Messages:
    1,118
    First Name:
    Anthony
    Portland, OR
    Vehicle:
    2020 DCSB OR MT
    I tried this shortly ago (was trying not to do this), and removed the ground strap after you told me I was shorting it. Also went ahead and stripped some paint from the the mount meets the truck on both sides. I still don't think I am getting a ground. I am out of time for this right this moment, and I will have to come back to it. Appreciate your help, thank you.
     
  8. Jun 19, 2021 at 5:21 PM
    #1968
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    I think one of the issues is that the "fire-ring" is really made for an un-painted mount. If you look at the top of the fire ring (the side with the raised, white plastic centering section) there is an exposed steel circular ring. That ring, I assume, is connected to the coax braid. You need that ring to make metal to metal contact with the bottom of the bracket. That should solve the grounding problem. It may or may not lower your SWR.
     
    HisDad and C41n like this.
  9. Jun 20, 2021 at 8:17 AM
    #1969
    mrCanoehead

    mrCanoehead Well-Known Member

    Joined:
    Nov 9, 2017
    Member:
    #235493
    Messages:
    695
    Gender:
    Male
    Ottawa
    Vehicle:
    2018 DCSB Sport manual 3.5 l
    I wanted a no-drill solution for mounting antennas on the roof. I bought a couple of NMO mounts from Breedlove (who are just fantastic) and got a 73 thou sheet of aluminum plate from a metal shop. Two 3/4" holes later, et voila.

    I ordered some studs that fit into the slots on the Prinsu crossbars, I hope they show up soon. I will mount the plate on the underside of the crossbars. I will be able to just unscrew the antennas and put caps on the NMOs, then I will have unrestricted use of the roof rack because the mounts will not project above the crossbars.

    If there is any interest, I'm happy to make a dimensional drawing and post it.

    I was initially going to mount my little tarheel ii screwdriver antenna up there but whereas I would be okay if the two whips shown got mangled, I would cry if I sheared off the very expensive tarheel in some parking garage, so I think I'll compromise on ground plane and just mount that one using a bed corner mount.

    DSC_0056.jpg DSC_0055.jpg
     
    BillW, Sand Dog, Will_2018 and 2 others like this.
  10. Jun 20, 2021 at 11:23 AM
    #1970
    HisDad

    HisDad Well-Known Member

    Joined:
    Mar 30, 2015
    Member:
    #152127
    Messages:
    834
    Gender:
    Male
    Massachusetts
    Vehicle:
    2019 Cement Tacoma SR5 Double Cab
    That ground wire is shorting your antenna directly to ground. That's why your SWR meter is pegging the needle. Keep doing that and you'll smoke the the RF out put transistor.

    This diagram at the Firestick website shows the different type of stud mounts. The fire ring doesn't need a separate ground, but you will need to make sure that there is bare metal for it the ground ring to make contact with.

    These instructions show how to install the fire ring mount. There is no ground wire installed.


     
  11. Jun 20, 2021 at 11:51 AM
    #1971
    bagleboy

    bagleboy Well-Known Member

    Joined:
    Aug 5, 2017
    Member:
    #226018
    Messages:
    4,799
    Gender:
    Male
    First Name:
    Scott
    Norcal, Santa Rosa
    Vehicle:
    2014 5-lug AC 2.7L VVTI
    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Would the strap work if on the other side of the fire ring instead? On the raised shoulder side. Then it could act as the bare metal to metal connection needed.

    Coupler
    Lock washer
    Washer
    Plastic washer
    Mount
    Ground strap with hole enlarged to encompass raised plastic insulator and touch metal shoulder
    Fire ring, plastic sticking up
    Bolt
     
  12. Jun 20, 2021 at 2:53 PM
    #1972
    foy1der

    foy1der Well-Known Member

    Joined:
    Sep 18, 2016
    Member:
    #197597
    Messages:
    559
    Gender:
    Male
    First Name:
    W1FOY
    Vehicle:
    2017 OR DCLB
    You are making the grounding strap a part of the antenna. You will need to tune the antenna to account for the longer ground element. It might work and it might not. Good luck.
     
  13. Jun 20, 2021 at 3:20 PM
    #1973
    pmoore4321

    pmoore4321 Member

    Joined:
    Jan 29, 2021
    Member:
    #354414
    Messages:
    15
    Gender:
    Male
    San Juan, Puerto Rico
    Vehicle:
    2021 Tacoma OR
    Yes it would. That's a good idea.
     
  14. Jun 20, 2021 at 3:43 PM
    #1974
    bagleboy

    bagleboy Well-Known Member

    Joined:
    Aug 5, 2017
    Member:
    #226018
    Messages:
    4,799
    Gender:
    Male
    First Name:
    Scott
    Norcal, Santa Rosa
    Vehicle:
    2014 5-lug AC 2.7L VVTI
    Snug top Rebel, Thule tracks, ditch tracks, Bagged rear suspension, F/R anytime camera, intermittent wiper switch...
    Is that why they suggest using a coax ground for the mount?
     
  15. Jun 20, 2021 at 4:19 PM
    #1975
    foy1der

    foy1der Well-Known Member

    Joined:
    Sep 18, 2016
    Member:
    #197597
    Messages:
    559
    Gender:
    Male
    First Name:
    W1FOY
    Vehicle:
    2017 OR DCLB
    I don't know the answer to that.

    I would try using the fire ring as intended. Unless of course you want to play around with it. I can certainly understand where you are coming from if that's the case.
     
    HisDad likes this.
  16. Jun 20, 2021 at 4:19 PM
    #1976
    HisDad

    HisDad Well-Known Member

    Joined:
    Mar 30, 2015
    Member:
    #152127
    Messages:
    834
    Gender:
    Male
    Massachusetts
    Vehicle:
    2019 Cement Tacoma SR5 Double Cab
    The antenna is designed not to need a ground strap. As foy1der says it might change the SWR of the antenna.

    Do what you think best, but Firestick designed the antenna that way for a reason.
     
  17. Jun 20, 2021 at 4:20 PM
    #1977
    HisDad

    HisDad Well-Known Member

    Joined:
    Mar 30, 2015
    Member:
    #152127
    Messages:
    834
    Gender:
    Male
    Massachusetts
    Vehicle:
    2019 Cement Tacoma SR5 Double Cab
    "Tune for maximum smoke." as a friend of mine who is a retired electronic engineer likes to say.

     
  18. Jun 20, 2021 at 4:28 PM
    #1978
    soundman98

    soundman98 Well-Known Member

    Joined:
    May 31, 2021
    Member:
    #367288
    Messages:
    96
    Gender:
    Male
    Indiana
    Vehicle:
    '18 Taco Sport, '14 BRZ
    a lot of different units everyone's using. i've got an aftermarket stereo, which opens up a dash slot for something. been thinking about a uniden bearcat 980.
    https://smile.amazon.com/Uniden-Cha...keywords=uniden+bearcat&qid=1624231584&sr=8-4

    is there something about those units that no one likes them? just curious before spending the money on something that doesn't work so great.
     
  19. Jun 21, 2021 at 12:14 PM
    #1979
    GarlicFarts

    GarlicFarts Bang Ding Ow

    Joined:
    Dec 12, 2019
    Member:
    #313138
    Messages:
    6,696
    Gender:
    Male
    Lil Rhody
    Vehicle:
    2020 White DCSB TRD OR
    SOS bolt-on sliders In-cab sleeping platform Soft Topper
    On a 3rd gen? Seriously - I looked to see if I could downgrade to a single din and get a radio in there, were you able to do that!? I'd love to! :D I'm about to buy one of these:
    https://smile.amazon.com/President-...keywords=small+CB+radio&qid=1624302798&sr=8-4

    In the customer images there's actually one in the phone cubby of the tacoma. I don't use that for phones or really anything, so might as well put a radio there :notsure: but, if you can get it in the dash with a single din that would be bitchin'. Then I can do a CB and GMRS :D
     
  20. Jun 26, 2021 at 5:46 PM
    #1980
    soundman98

    soundman98 Well-Known Member

    Joined:
    May 31, 2021
    Member:
    #367288
    Messages:
    96
    Gender:
    Male
    Indiana
    Vehicle:
    '18 Taco Sport, '14 BRZ
    yeah, i've already got my pioneer head unit installed(my first rule of vehicle purchases is that i can install my own radio, wouldn't have a 3rd gen if i couldn't), and the sony above it is a placeholder for better things!

    scosche makes a glossy kit(like installing a mirror in the dash, bleh), metra's kit was on indefinite backorder for 1-2 months, and this random Amazon kit matches the oem finish best
    https://smile.amazon.com/dp/B01M7UE2BQ?ref=ppx_yo2_dt_b_product_details

    [​IMG]

    the main thing is that i wanted to make sure was that there wasn't some serious problem with those bearcats that all the experts knew about but weren't saying!
     
    GarlicFarts and shiftd like this.

Products Discussed in

To Top