Magloop 160 to 20 meters (TX 40 to 20), Dipole 80 to 40; Moxon 20 to 10.

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  • เผยแพร่เมื่อ 9 ต.ค. 2024
  • Magloop 180 to 20 meters. Transmit 40 to 20.
    Features:
    40 to 20 meters with less than 1:1.2 SWR for TX
    Remote controlled air capacitor with 5rpm motor with 4:1 gear reduction and speed controller.
    Switch for 180 meters and 80 meters (RX only). Capacitors rated for 2kV
    Parallel loops 13 cm apart from each other.
    Diameter of loops 126 cm
    Material: Shorted Coax
    Moxon 20 to 10 meters
    Height: 13 meters
    5rpm rotor self made
    Camera for orientation
    SWR: less than 1.5:1 in all bands
    Awesome antenna
    Dipole 80 to 40 meters, shortened on 80 and vertical L configuration
    Length 20 meters for 40 m
    Two 100 ųF capacitors at end of 40 meter antenna with 1.5 meter vertical L wire drop
    Excellent TX and DX
    Comercial GP80 antenna
    Very low Q from 40 to 6 meters
    A bit noisy and not good compared to MOXON and Dipole.
    Controllers
    9 to 12 volt
    Two speed controllers one for antenna rotor another one for air capacitor ($6 each), motors are 5rpm ($10 each)
    Antenna switch kit was around $30, 9 to 12 volts. Well made, insignificant SWR change.
    KO6DEV
    73

ความคิดเห็น • 4

  • @John-K6RXD
    @John-K6RXD วันที่ผ่านมา

    Amazing

  • @the.mr.beacher
    @the.mr.beacher วันที่ผ่านมา

    Total cost? Time and effort? Plans? Good performance a day results?
    73

  • @user-yh7mv7jd1l
    @user-yh7mv7jd1l  4 วันที่ผ่านมา

    I made a mistake and said microhenries instead of ųF (microfarards); and I said kilowatts instead of kilovolts. Sorry, it was too early in the morning.
    I used this Magloop calculator:
    miguelvaca.github.io/vk3cpu/magloop.html

  • @user-yh7mv7jd1l
    @user-yh7mv7jd1l  4 ชั่วโมงที่ผ่านมา

    If you go to qrz.com and look me up, KO6DEV, you will see the costs. The Magloop is less than $100, the Moxon is less than $250 (rotor included) the dipole for 80 to 40 is $10 or less. The antenna switch is around $30, and it’s a kit.
    So, I am saving hundreds, if not thousands of dollars.
    Advise: build and experiment.