MX-5 Miata Mobile Radio Install

Discussion in 'On the Road' started by N9PCT, Jul 27, 2018.

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  1. N9PCT

    N9PCT Ham Member QRZ Page


    Just bought a used Mazda Miata. Fortune would have it that the stock antenna's rubber cracked all around, water got in, and rusted the antenna from the inside. Naturally, instead of replacing it, I'm fitting in a Comet SBB-1 antenna for use with my Kenwood V71. It should look exactly like the stock antenna - I'm 3D printing a base to set it at the same angle as the OEM FM antenna.

    Anyhow, I want to retain use of my car's AM/FM stereo. I also do not want to let the smoke out of it by TXing 50W from my V71 straight into the receiver.

    Anybody know of a filter or something that will allow me to connect my AM/FM receiver and use my 2m/70cm rig on the same antenna?

    I figured this would be a common thing, but I've searched high and low with no answer.

    The other guys here at the Purdue Amateur Radio Club told me to drill the trunk and install an SBB-7. I'd like to keep the stock look. I don't want a life-size toy car :D

    P.S. Picture of the car attached!


    Attached Files:

  2. K3XR

    K3XR Ham Member QRZ Page

    When I operate from the Miata which is not very often do to keeping busy with the 5 speed transmission use one of the small mag mounts on the trunk lid with an HT.
  3. N9PCT

    N9PCT Ham Member QRZ Page

    Thanks for the tip, but I'd really like my dual VFO mobile in the car - it's my DD. And I don't want to scratch the paint with a mag-mount.
    K3XR likes this.
  4. K1TGX

    K1TGX Premium Subscriber QRZ Page

    Tried to convince my son to put in a radio in his Miata. . .

    K3XR likes this.
  5. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    Drill a hole and put in an NMO mount for your ham antenna. Don't agonize over it. ;) It's a Miata, not a Lambo!
  6. W1NCH

    W1NCH Ham Member QRZ Page

    You need a transmit/receive switch that will automatically sense the RF when you transmit. Check the August 2018 issue of QST, pp 30-33, "Versatile Transmit/Receive Switch and Active Antenna." This may or may not work for your application (the intended use is HF reception) but the concept is the same - use one antenna for both a transceiver and a separate receiver. If nothing else, you could try contacting the author to get some feedback about your situation.
    K3XR likes this.
  7. K6GB

    K6GB XML Subscriber QRZ Page

    The only one I ever saw was for CB/AM/FM. Use a stock antenna for AM/FM and you can fab an NMO mount for the groove between the trunk lid and the body, alternate- a glass mount on the windshield. BTW I miss my Miata, Eibach springs and bars, Bilstein shocks, summer tires and roll bars, but arthritis finally forced me into an automatic Mustang GT equipped 80m - 440mhz.
  8. K7MFC

    K7MFC Ham Member QRZ Page

  9. K3XR

    K3XR Ham Member QRZ Page

  10. K6PCW

    K6PCW Ham Member QRZ Page

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