How high does a 20m dipole need to be?
20 Meter Dipole at 42 feet.
Will a 20m dipole work on 10m?
A half wave dipole for 20m should be a full wave dipole for 10m, so it should at the very least receive well on 10m. But again–listening to SDRs in my area, I currently hear a lot on 10m. But on my radio–practically nothing. (On 10m, I do occasionally hear some very faint beacons or something, but otherwise nothing.)
How long is a 20 meter half wave dipole?
Read more about . . . . Dipole Length Calculations.
| Approximate Lengths for HF Ham Band Dipole Antennas | ||
|---|---|---|
| Band (MHz) | Length (Feet) | Length (metres) |
| 7.0 MHz (40 metres) | 68.5 | 21.1 |
| 10.1 (30 metres) | 47.5 | 14.7 |
| 14.00 (20 metres) | 34.3 | 10.6 |
Can a dipole be too high?
Recommendation. For best results, dipoles should be at least 1/2 wavelength above ground level. For the lower bands, especially 160-40 meters, this can become impractical–place your dipole as high as your situation allows.
How long should my dipole be?
When determining how long to make each leg of a Dipole antenna, dividing the frequency in MHz into 468 will give the overall length. To find the half wave, divide that number by two. This will give you the length of each leg of the antenna.
What is a 20m mini dipole antenna?
20m mini dipole antenna – This antenna project is a compact center-loaded wire-dipole. Center-loading is the most efficient way of loading a dipole or mono-pole Compact 20m Dipole Antenna – Only 2x 10ft wide, performance similar to full-size dipole, covers whole band with SWR better than 1:1.2.
Can vertical dipoles for 20 meters band?
In this excellent article the author experiment loaded vertical dipoles for 20 meters band 20 meters Cage Dipole – Cage Dipole is based on the fact that a wireframe does emulate a tubing of the same diameter, supposed that the wires in the frame are close enough to resemble a solid surface.
What are the different types of dipole antenna?
Center-loading is the most efficient way of loading a dipole or mono-pole Compact 20m Dipole Antenna – Only 2x 10ft wide, performance similar to full-size dipole, covers whole band with SWR better than 1:1.2. Rotatable Dipoles pop – Portable, and shortened with loading coils rotatable dipoles for 6 meters, 20 meters and multibands.
What is a 20 meter short loaded vertical antenna used for?
20 meter short loaded vertical antennas – Loading is a way to lower the resonant frequency of an antenna radiator. This technique is typically used in antennas that have radiating elements that are too short for the desired resonance frequency. In this excellent article the author experiment loaded vertical dipoles for 20 meters band