What is an advantage of using a properly mounted 5/8 wavelength antenna?

What is an advantage of using a properly mounted 5/8 wavelength antenna?

While a 5/8 wave antenna will, indeed, exhibit an increase in signal strength at the lower angles, that increase is in the order of 3dB, (2-times the power) nowhere near the 10dB of a 10-times increase. Why are VHF or UHF mobile antennas often mounted in the center of the vehicle roof?

Does a 5’8 wave antenna need a ground plane?

The absence of a ground plane or very small ground plane will cause the matching circuit for the 5/8 wave to be a little different due to less capacitance between the vertical element and the ground plane, otherwise there is no “reflection or radiation from a second source” to produce gain in a 5/8 wavelength antenna.

What is the gain of a 5’8 wave antenna?

4 dBd
When used as a vertical radiator against a ground plane this translates to a length of 5/8 wavelength. It is found that a five eighths wavelength vertical antenna has a gain of close to 4 dBd, i.e. 4 dB gain over a dipole.

What is the vertical angle of a 5 / 8 wavelength?

Properly constructed, the 5/8 wavelength vertical will show a gain of slightly more than 3dB over a dipole. Lower angle of radiation. According to some antenna experts, the 5/8 wavelength shows a low vertical angle of 16 degrees to the horizon.

Can you use a 5 / 8 wavelength vertical antenna?

You can realize this goal by building and using a 5/8 wavelength vertical antenna on the popular 10 meter amateur radio band. If you use 50-ohm coaxial cable as your feed line, you’ll need a matching device at the base of the antenna to make the antenna work correctly.

Do you need ground radials for a 5 / 8 wavelength vertical?

The 5/8 wavelength vertical also requires a ground radial system to realize its full potential. The radial system needn’t be an extensive affair buried in the ground. I used six elevated 5/8 wavelength radials for my antenna.

How many eighths of a wavelength is a vertical monopole antenna?

The maximum level of radiation at right angles to the antenna is achieved when the dipole is about 1.2 times the wavelength. As a vertical monopole antenna is half the length of a dipole, this equates to about a five eighths wavelength vertical monopole antenna.