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1. www.66pacific.com › calculators › quarter-wave-vertical-antenna-calculatorQuarter-Wave Vertical Antenna Length Calculator - 66pacific.com

   www.66pacific.com › calculators › quarter-wave-vertical-antenna-calculator

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   Use this online calculator to determine the length of a quarter-wave antenna from the frequency. Both metric and English units of measurement are supported.

   • Coil-Shortened Vertical Antennas

     You can further reduce the height of the antenna by placing...

   • Small Transmitting Loop Antennas

     To use the calculator: 1. Choose the units of measurement,...

   • BMI

     Body Mass Index Calculator. Weight, weight loss, and weight...

   • Full-Wave Loop Antennas

     To use the calculator, enter the desired operating frequency...

   • Capacitance

     To use the calculator: 1. Choose the units of measurement....

   • VBar Governor Headspeed Calculator

     The calculator will show you the headspeeds determined by...

   • Site Map

     Quarter-Wave Vertical Antenna Calculator A free online tool...

   • Computers

     Quarter-Wave Vertical Antennas: Coil-Shortened Vertical...

2. www.csgnetwork.com › antennaevcalcAmateur Vertical Antenna Calculator - CSGNetwork

   www.csgnetwork.com › antennaevcalc

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   This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.

3. gegcalculators.com › amateur-vertical-antenna-calculatorAmateur Vertical Antenna Calculator - GEGCalculators

   gegcalculators.com › amateur-vertical-antenna-calculator

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   31 paź 2023 · An 80-meter vertical antenna would ideally be approximately 20 meters (about 66 feet) long for a quarter-wave design. How long should radials be for a 20-meter vertical antenna? Radials for a 20-meter vertical antenna should ideally be at least 5 meters (about 16 feet) long for good performance.

4. 3roam.com › 1-4-wave-antenna-calculator1/4 Wave Antenna Calculator - 3ROAM

   3roam.com › 1-4-wave-antenna-calculator

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   A quarter wave (λ/4) antenna designed for 20 meter applications (15 MHz) has a length of 3.3 meters. The length of radials, assuming a 10% increase, is 3.6 meters. This assumes a velocity factor of 0.66. Background. A quarter-wave antenna, often used as a monopole antenna is mounted vertically and operates effectively over a ground plane.

5. m0ukd.com › calculators › quarter1/4 Wave Ground Plane Antenna Calculator - M0UKD

   m0ukd.com › calculators › quarter

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   This calculator can be used to design a Quarter Wave Ground Plane antenna, with radials. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. There are usually four radials, three being a minimum, but you could use up to six.

6. www.csgnetwork.com › antennagpcalcAmateur Quarter Wave Ground Plane Antenna Calculator - CSGNetwork

   www.csgnetwork.com › antennagpcalc

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   This calculator is designed to give the vertical length (height) of a quarter wave ground plane antenna, and the length of each of the four radials

7. sheldont.github.io › Antenna-Length-CalculatorAntenna Length Calculator - GitHub Pages

   sheldont.github.io › Antenna-Length-Calculator

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   Antenna Length Calculator. 1. What type of antenna do you want to build? Dipole. Fan Dipole. Inverted Vee. Off Center Fed Dipole. Vertical. 2. What frequency will you be operating on? Frequency: MHz. Meters Feet. 3. Here's your antenna...