Mark S. @ Fine Tune CB (Hardrive)

Discussion in 'CB Radio Forum' started by Evvy Thomas, Mar 24, 2016.

  1. bored silly

    bored silly Road Train Member

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    hey bread boy where ya been...just screwing with you !!! lol
     
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  3. rabbiporkchop

    rabbiporkchop Road Train Member

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    When choosing an antenna, Q factor should always be taken into consideration.
    It is important to select an antenna which maintains a Q of at least 200 throughout its bandwidth. This rules out about 80% of the current batch of commercially available, remotely tuned, HF antennas. It should be mentioned that Qs higher than 300 are difficult to achieve, and offer little advantage over ones with a Q of 200, unless they're properly mounted. Once the Q drops to under ≈100, the SNR we're striving for drops drastically. Fact is, really lossy and improper antennas installations are better noise antennas, than signal antennas! Especially so if common mode isn't choked off.
    High Q antennas have less noise and better receive than bottom load antennas like the one on Craigs truck.
    [​IMG]
     
    Last edited: Oct 4, 2016
    Reason for edit: Pic
  4. lilillill

    lilillill Sarcasm... it's not just for breakfast

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  5. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    I think I'll order an AA-54 while I'm home. I'd like one just for this purpose--the graphing function.
     
    rabbiporkchop Thanks this.
  6. rabbiporkchop

    rabbiporkchop Road Train Member

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    Maybe one of these days I'll spring for one.
     
  7. Ridgeline

    Ridgeline Road Train Member

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    Wow


    Now we have to deal with the Q ...


    Over thinking
     
  8. rabbiporkchop

    rabbiporkchop Road Train Member

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    Lots of catching up to do in order to hit the 80 mile mark (mobile to mobile).
    Or 135 miles base to mobile at will.
    Kinda requires a little thinking (and $$) in order to achieve that range on an at will basis.
     
    Last edited: Oct 4, 2016
    Reason for edit: base to mobile increases bar to 135 miles
    bored silly Thanks this.
  9. craig_sez

    craig_sez Road Train Member

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    Wonder if running a ground strap from radio to sayyyy my seat mount helps rf any..
     
  10. craig_sez

    craig_sez Road Train Member

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    Dude if i got a solid 20 miles with my gear i would be jumpin outta my skin but 80!!!! fugget bout ittt
     
  11. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    I did 2100 miles to San Diego from GA today. :D
     
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