Hight swr

Discussion in 'CB Radio Forum' started by Madmaths, Dec 4, 2016.

  1. rabbiporkchop

    rabbiporkchop Road Train Member

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    Hypothetically I could attach a dummy load to the end of my coaxial cable and my SWR would be perfect but I wouldn't be talking very far
     
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  3. craig_sez

    craig_sez Road Train Member

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    Speaking of grounding....I tried this mount http://assets.suredone.com/1990/med...ntenna-mount-freightliner-trucks-pca5002.jpeg on my cascadia with a 7ft skip shooter and didnt get a good result...Swr was up around 1.8ish and resistance was in the mid 20's and resonance was in high teens..
    Based on those results either the mount itself sucks dog crap or that idea doesnt work at all wortha crap...
    My 40" tall mount set up has almost perfect #'s....I posted the #'s here somewhere on my 40" tall cascadia mount....
    I had a part made for the top of that mast to see if the dipole idea will do anything...Ill do the install next wekk and see..
     
  4. rabbiporkchop

    rabbiporkchop Road Train Member

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    It is an illusion. separating the counterpoise from the feed point ruins the performance. swr means very little.
     
  5. craig_sez

    craig_sez Road Train Member

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    Oh i know swr means squat but it helps me with tune direction cause i never remember which direction to go with resonance to tune..Heck i got a lil card i referr back to all the time..
    Rabbi im not sure how to interpret that comment..
    I thought getting the feed point closer to the ground would benefit ..
    I still have that piece i had made to mount on top of the 40" shaft so i can try out the dipole deal...
     
  6. rabbiporkchop

    rabbiporkchop Road Train Member

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    If you bolt a flagpole to the roof of your Dodge truck and then you install and an antenna to the top of the flagpole even though you're a hundred foot higher in the air you're a hundred foot from your counterpoise. Feeding antenna directly at the surface of the sheet metal roof is where all your performance is. You might get a decent-looking SWR but it ain't going to work worth a ####. I'm sure you've noticed this
     
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  7. rabbiporkchop

    rabbiporkchop Road Train Member

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    However if you attach a dipole to the top of that hundred foot Mast on top of your Dodge truck it will dominate the airwaves
     
  8. craig_sez

    craig_sez Road Train Member

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    Whats my dodge got.to do with it....Im referring to my crapcadia..
     
  9. rabbiporkchop

    rabbiporkchop Road Train Member

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    Same concept. It's better to reflect off a 6 foot by 4 foot piece of sheet metal than a 4 inch round piece of aluminum.
     
  10. craig_sez

    craig_sez Road Train Member

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    so how in the name of god are guys on here gettin good results then?..
     
  11. craig_sez

    craig_sez Road Train Member

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    then the 7 ft was useless for me to buy so that i could get my feed point closer to the physical ground and what little metal that on the truck..
    So my 40" tall mount with my 10k on a 22" shaft and higher feed point was doin better....

    Hopefully the temps n such will be in my favor on the 27th when im home to try the dipole on that tall shaft.
     
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