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Soooo, I was just thinking... (That hurt my Brain...)

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by KD8DEY, Jun 11, 2019.

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  1. KD8DEY

    KD8DEY Ham Member QRZ Page

    If the given formula for a 1/2 wave Dipole is 468/F(Mhz), and a full wave loop would be 1005/F(Mhz),
    And at VHF the formula changes to 475/F(Mhz),....What is the formula for a Full wave loop
    at VHF? I don't recall seeing it anywhere...
    Guess I'll have to GooGle it some more...But all I find are references to 1005/F
  2. KL7AJ

    KL7AJ XML Subscriber QRZ Page

    If you're using thin wire, the formula is the same. HOWEVER, if you're using tubing, you'll have to shrink it by maybe 5%
    AK5B likes this.
  3. KL7AJ

    KL7AJ XML Subscriber QRZ Page

    By the way W4RNL's books on cubical quads are the definitive authorities for loops of all kinds.
    K9ASE likes this.
  4. WJ4U

    WJ4U Ham Member QRZ Page

    Don't forget you have to covert furlongs to fathoms and move the decibel point to the left.

    Ouch! (That was my YL slapping me upside the noggin) :confused:
    K9ASE likes this.
  5. KD8DEY

    KD8DEY Ham Member QRZ Page

    But,But...What about cubits?
    K9ASE likes this.
  6. KD8DEY

    KD8DEY Ham Member QRZ Page

    Can't find a reference to the Quad book, But there is a 2 volume set on E-Bay that I'm not bidding $60 on...
  7. K5WZI

    K5WZI Ham Member QRZ Page

    Maybe its 468 is to 475 as 1005 is to WHAT or 468/475 = 1005/X and X = 1020 or maybe its not.
  8. WB5YUZ

    WB5YUZ Ham Member QRZ Page

    468/f and 1005/f are only guidelines, not true formulas. They do not produce precise results, only starting points.
    AD5HR, KC8VWM, KD8DEY and 1 other person like this.
  9. KP4SX

    KP4SX Premium Subscriber QRZ Page

    They are really good with nacho cheese.
    N0YPD and K9ASE like this.
  10. KD8DEY

    KD8DEY Ham Member QRZ Page

    If it's Nacho cheese, you shouldn't be eating it...
    I really like Chili cheese, Especially Chili chese fries...

    On the serious side... (Oh S(Censored)TT!!, Bubba's being serious)
    Anybody got the book that can give me the ISBN??
    K9ASE likes this.

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