MY Crapcadia solution

Discussion in 'CB Radio Forum' started by breadtrk, Oct 29, 2017.

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  1. Oct 29, 2017 #1
    breadtrk

    breadtrk Heavy Load Member

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    Let me start with this. I don't give a #### about the tech, anal, crap pickup driving 60 mile contacts.

    I'm a real driver, since 80, so shove the bull shat right up your arses.

    I only use top shelf radios, coax and antenna's. I'm not done perfecting yet and have have to make some compromises due to product availability. It works 15 miles out front in the mid West and 25 out back.

    I'll be glad to answer questions about the hardware or installation. I'm not asking for any expert opinions.

    IMG_20171029_114239.jpg IMG_20171029_114250.jpg
     
    breadtrk, Oct 29, 2017
    breadtrk, Oct 29, 2017
    #1
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  3. Oct 30, 2017 #2
    mike5511

    mike5511 Road Train Member

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    I got a better SWR by sliding the bracket out as far as I could from the truck body. The mirror didn't effect it at all.
     
    mike5511, Oct 30, 2017
    mike5511, Oct 30, 2017
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  4. Oct 30, 2017 #3
    breadtrk

    breadtrk Heavy Load Member

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    To much movement with the mounts out on the ends. I've already broken the ears off 2 mounts from the movement. Those are Hustler 27's on a 3ft all-thread extension. Advanced Electronics in Nashville tuned them using a analyzer that has a graphing LCD screen. It's mostly a Motorola shop not really into CB anymore but I've been reading with them over 30 years so they hooked me up.
     
    breadtrk, Oct 30, 2017
    breadtrk, Oct 30, 2017
    #3
  5. Oct 31, 2017 #4
    rabbiporkchop

    rabbiporkchop Road Train Member

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    Mounting ideas.
    Antenna Mounts
    Efficiency ideas.
    Antenna Efficiency
    Grounding
    Grounds, RF & DC
    1509500936718.png 1509500886298.png


    I see common mode current issues as well as RF interference issues.
    Lots of static and noise in the receiver as well as drastically reduced efficiency using those pedestal mounts.
     
    rabbiporkchop, Oct 31, 2017
    rabbiporkchop, Oct 31, 2017
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  7. Oct 31, 2017 #5
    volvo244t

    volvo244t Road Train Member

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    I think common mode current and RFI issues are all but unavoidable on big trucks. Unless you have an older flat-top Pete with a metal roof and you do a roof mount.

    That being said, out of all the different setups I've used, these continue to be the best:

    bigantenna.jpg

    16523939_10158140259885697_356826745_o.jpg

    And of course, the Hustler QD-27 is just a 102 that's had a big chunk of it replaced with a coil. It's more expensive than a 102. It is a compromise for applications where running a 102 is not practical. On a Crapcadia, it's practical.
     
    volvo244t, Oct 31, 2017
    volvo244t, Oct 31, 2017
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  8. Nov 1, 2017 #6
    rabbiporkchop

    rabbiporkchop Road Train Member

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    You reduced your common mode current issues by not mounting atop a pole and mounting close to door.
     
    rabbiporkchop, Nov 1, 2017
    rabbiporkchop, Nov 1, 2017
    #6
  9. Nov 1, 2017 #7
    craig_sez

    craig_sez Road Train Member

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    I had that same mount idea and got about same range.....
    After running a 7ft skip shooter i can double my range and less noise..
     
    craig_sez, Nov 1, 2017
    craig_sez, Nov 1, 2017
    #7
  10. Nov 7, 2017 #8
    weasel

    weasel Light Load Member

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    Craig, I ended up putting a 5.5 Francis back on the the passenger side spot mirror bracket...best yet.swr 1.3 across all channels. I'm gonna take your advise and find a PVC pipe to cover antenna so I don't get the sway and break it off.. radio checks are good, 10 to 15 miles.
     
    weasel, Nov 7, 2017
    weasel, Nov 7, 2017
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    Dave_in_AZ and rabbiporkchop Thank this.
  11. Nov 7, 2017 #9
    weasel

    weasel Light Load Member

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    Oh yeah, the radio is a stock Tiawan ROC Cobra 29, only peak and tune is modulation turned up and alignment, and everyone says audio is loud and clear. I got lucky about a month ago on eBay and took it to my my radio tech Clays Radio in San Antonio, Tx and he said I got lucky on this one...tuned really well.
     
    weasel, Nov 7, 2017
    weasel, Nov 7, 2017
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  12. Nov 7, 2017 #10
    Night Stalker10

    Night Stalker10 Road Train Member

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    “I think common mode current and RFI issues are all but unavoidable on big trucks. Unless you have an older flat-top Pete with a metal roof and you do a roof mount.”

    I agree with Volvo. Unfortunately the common mode current becomes an issue when there’s no ground plane under the antenna. Of course using a higher powered radio makes it worse I’m sure. I’m actually surprised that mounting an antenna on a pole is even working for reasons that Rabbi mentioned. But if it’s working for you, that’s all that matters. I guess I shouldn’t complain about this old 2006 Pete I drive, at least the cab & doors are metal.
     
    Night Stalker10, Nov 7, 2017
    Night Stalker10, Nov 7, 2017
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    rabbiporkchop Thanks this.
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