Suggestion for 10m mobile antenna

Discussion in 'Mobile Radio Systems' started by KX0Z, Apr 5, 2012.

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  1. KX0Z

    KX0Z Ham Member QRZ Page

    Mobile setup is FT8900R and Diamond CR627B tri-band 6m/2m/70cm antenna. Everything works well on all bands. The only band I don't have available is 10m. I know there are a few quad band antennas but I'm not interested in any of them. Way back in my "cough cough" CB days I used a K40 antenna with good success. I would say working Alaska mobile on 4 watts is probably successful. I'm not real thrilled about using either lip mount or mag mount with a K40 now on my new car. I know the antenna works fairly well, but I fear both mounts will damage the paint.

    Sooo any suggestions on an antenna? I'm not drilling holes in my car so that is simply not an option. The Diamond/Comet trunk lip mounts seem sturdy and I have used them in the past with success.
  2. KA9VQF

    KA9VQF Ham Member QRZ Page

    I can understand your disdain for mounting an antenna on your ride.

    I have used a number of different mobile antenna on the various cars I have owned.

    I've used mag mounts lip mounts but the best is a hole in the car and an NMO mount.

    I have drilled and mounted antenna on almost every car I have ever owned. Of course I almost always drive my cars until they are ready to go to the bone yard.

    I have sold a few vehicles privately and I have traded a few in on new vehicles. I've never had a problem because there was an antenna hole in the car where I had mounted the antenna. On the ones I traded to a dealer I just put a chrome hole plug in to cover it. You can buy them in the plumbing department at hardware stores, the plug and a dab of silicon seals the hole nicely.

    None of the dealers have ever asked why it had the plug in it. One of the cars I sold privately I hadn't gotten around to removing the NMO mount, the folks did ask what the NMO mount was for and I told them it was for a cell phone antenna. I think that was what sold that car for me.
  3. KX0Z

    KX0Z Ham Member QRZ Page

    Yeah my friends and I have had that conversation ad naseum, it's just not gonna happen. I am looking for another alternative, but appreciate the reply..
  4. G4SKO

    G4SKO XML Subscriber QRZ Page

    I use ladder racks/bars for antenna mounts with great success.

    G4SKO 73
  5. KX0Z

    KX0Z Ham Member QRZ Page

    I'm sorry, I should clarify this is for a 2010 Toyota Avalon. No ladder racks, luggage racks etc etc..
  6. WB2WIK

    WB2WIK Premium Subscriber QRZ Page

    I've done a lot of mobile installs and can't think of any way to mount a 10m antenna on the car that doesn't risk paint/metalwork/finish other than the standard NMO through-hole mount which doesn't damage anything. Everything else I've ever tried does some sort of damage with a decent 10m whip.

    A very short loaded whip on a trunk lip mount might be almost "non-harmful" because the antenna is so small, but of course those don't work very well.

    Another thought might be a welded tube mount, with the work done underneath the car so it cannot be seen. This is very common when installing screwdriver antennas and such. It's certainly "work," but none of it can be seen so nobody knows you did it except you...
  7. W9GB

    W9GB Ham Member QRZ Page

    A trunk-lid NMO mount should work fine. No harm to paint, trunk lid, etc.
    I used the Antenex/Laird NMO mount on my last car. Chrome or Black, you choose!

    Shop around for best price. AES stocks Antenex/Laird products.

    Antennas that use NMO mounts
    The Antenex/Laird C27 model, or C27S with spring, will work for 10 meters !

    The Antenex model C27S has a 49 inch whip
    with spring and loading coil adding a few inches to overall antenna height.

    IF you desire symmetry, you can install 2 mounts (left & right)

    BTW, it is COMMON to see State Police patrol cars (Illinois) with 3 to 4 antennas on trunk.
    2 or 3 will be thru-hole NMO, but I have seen 2 trunk-lid NMO and 2 thru-hole NMO on those patrol cars with 4 antennas. IL State Police patrol cars were still using 42 MHz antennas
    in some districts (like #14 in western, rural sections).
    Last edited: Apr 5, 2012
  8. K9STH

    K9STH Ham Member QRZ Page

    The Larsen "L" bracket with an NMO mount works very well and only requires 3 small holes drilled where they basically do not show. When the bracket is removed the holes can be filled with silicon rubber, etc., and, unless you know where to look, the holes are not evident.

    I use a Larsen NM0-27K for 10-meters in my vehicle with an "L" bracket. The antenna can be "cut" for frequencies between 27 MHz and 30 MHz.

    larsen l mount-1.jpg

    The particular "L" bracket is at least 40-years old and has been installed in several vehicles over the years.

    Glen, K9STH
  9. K0RGR

    K0RGR Premium Subscriber QRZ Page

    Consider the length of the antenna chosen - longer wins nearly all the time. But, you also have to consider getting in and out of garages. Hustler makes a 'short mast' kit that consists of a very short mast, and a set of longer whips to use with their resonators. If you're using a trunk lip mount, this should be a good compromise and should go in and out of garages without much trouble. The center loaded Hustler should outperform any base-loaded whip.
  10. K8CPA

    K8CPA Ham Member QRZ Page

    You mean there's actual intelligent life above 7 KHZ?!? :-o ;-)
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