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Ham Radio Mobile Antenna Installation HF!

Discussion in 'Ham Radio - CB - Trail Communications' started by hamexplorer, April 27, 2003.

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  1. hamexplorer

    hamexplorer Member

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    I have some vintage Drake equipment that I am going to sell. This will permit me to raise some funds for a new mobile rig. The fuel pump noise is what bothers me.
    I am starting to think of mounting the antenna to the drivers side fender or lip where the hood meets the fender. However what I dont know is if they will support a HF antenna.
    I found a partial reel of #4 gauge wire in the garage so I guess I can use this for the power feed.
    Any ideas on the antenna would be appreciated. Thinking of maybe a hamstick for 15 and 20 mtr ssb to start with.....73
     
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  3. Rick

    Rick Pumpkin Pilot Staff Member Admin Elite Explorer

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    I ran a ball mount for my HF on the rear passenger sidequarter panel. I accessed the spot through the little storage compartment in the rear. Some have the subwoofer in that spot. Worked well.

    I don' think the hood lip would support a big ham stick too well.

    A hustler antenna with the loading coil up high should work well since it shouldn't be interferring with the body.
     
  4. Ray Hutchinson

    Ray Hutchinson Moderator Emeritus

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    Mobile HF woth an Ex

    Hamexplorer,

    First, what Rick said is correct.

    Also, the fuel pump "whine/buzz" to quote Ford tsb's is relatively cureable. See the thread by corv78, above.

    I have been running HF -Ex for several years. I have installed the Ford RFI filter (no longer available) onto the fuel pump mounted in the tank. I have yet to install the in line torroid filters described above, but plan to soon,

    I run an Outbacker Perth HF mobile antenna, and have it mounted "Auzzie style", that is, up front on my brush bar. This offers a couple of advantages: 1. it moves it far away from the fuel pump, and 2., I can see if I'm about to wipe the antenna out on a low branch, etc,, and steer around or stop and lower it, if needed.

    The radio is a DX70TH by Alinco,

    Not the highest dig. set up, but works well for me. :cool:

    73 de Ray, AE6H
     
  5. Bwana Bob

    Bwana Bob Active Member

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    I mounted my HF antenna up high. I replaced the stock roof rack with Yakima crossbars. A standard clamp type CB antenna mount clamps onto the rearmost crossbar, if you use longer screws on the mount. The antenna is a Hustler short mast (MO4) with Hustler resonator. I ran a very short piece of braid from the mount to the rearmost screw on the roof rack track for a good ground. For the lower HF bands 80 and 40, I made a little switch box that switches 100, 470, or 820 pf capacitors between the whip and ground. This makes a big improvement in SWR. For sationary use, I take the Hustler antenna off and use a 67 foot wire out to a tree for 80 meters and an army surplus 16 foot whip for all other bands.

    73,

    Bob WB2VUF
     
  6. hamexplorer

    hamexplorer Member

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    How good does it work on 15 and 20 meters?
     
  7. Bwana Bob

    Bwana Bob Active Member

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    RE: Mobile antenna 15 & 20

    The Hustler short mast works fine on 17 and 15 meters. I have used it successfully on Field Day. I think the secret is in getting the feed point on top of the vehicle instead of on the side or bumper. I get a little extra height and the antenna is clear of the truck body. The short mast seems to work as well as the longer (5 foot) masts. I have not used this setup on 20 meters. Since I only work 20 meters stationary, I use the 16 foot military whip. These whips and mounts are available from Fair Radio Sales and other surplus outlets. For 20 meters, I use all 5 sections. For 15 meters I take one section out. The swr is excellent in both cases and performance is probebly the same as a base station vertical at the same height. Don't drive around with one of these whips on the roof.

    For mobile-in-motion, my choice would be either the Hustler or the Lakeview Hamstick. Here's what would be cool: Put antenna mounts on the rear on each side of the roof rack and mount a 20 meter Hamstick on one side and a 15 meter stick on the other side. Put a coax switch under the dash and you can switch bands!. Of course, you could just use a single Hustler mast with the multiple resonator adapter and 2 resonators.


    Bob WB2VUF
     
  8. Stompah

    Stompah HAWAIIAN NITEMARE

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    "I have yet to install the in line torroid filters described above, but plan to soon,"

    Hey Ray,

    Where'd you get those torroid "donuts" from? I've been looking around and can't seem to find any. RF Parts wants a little too much for theirs...

    Ipo
     
  9. Ray Hutchinson

    Ray Hutchinson Moderator Emeritus

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    Torroid source

    Rat shack!.....use the snap together square ones. Sorry don't have the part number handy
     
  10. Stompah

    Stompah HAWAIIAN NITEMARE

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    "Rat shack!.....use the snap together square ones. Sorry don't have the part number handy"

    Hahaha... roger that.
     

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