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How good is a G5RV antenna?
As a dipole, it is very good on 20- and 40-meters depending on installation, and useful on other bands. For a balanced dipole on 80-meters, G5RV Max (204′) is available.
What is the length of a G5RV antenna?
102 feet
Standard G5RV antennas are 31 meters (102 feet) long, excluding feedline and matching section length, and can be used on 80, 40, 20, 15, and 10 meters. A half-length G5RV (51 feet long) can be used on 40, 20, 15, and 10 and is known as the G5RV Junior.
How does a G5RV antenna work?
7 MHz, 40 metres: On 40 metres the G5RV antenna operates using the top section plus nearly 5 metres of the matching section and it operates as a partially folded collinear array with two half waves in phase. Again the antenna presents a reactive load to any transmitter at its input.
Does G5RV need a balun?
A balun or choke should NOT be used on a G5RV wire dipole. The classic G5RV 102 ft. wire dipole consists of 51 ft. This is why the originator recommended against using a choke or balun at the transition between the ladder line and the coax.
What is an OCF antenna?
This type of antenna is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It’s a dipole fed off center with a 4:1 balun at the offset feed point. The antenna shown covers 80, 40, 20 and 10 meters.
How do you install a g5rv antenna?
Hang the antenna from the support using a nylon rope or other non-conductive rope tied to the center hole of the center insulator. The center insulator should be the highest point of the antenna. The antenna ends should be less than 25.5 feet below the center insulator.
What is a Zepp antenna?
The Half-Wave Zepp is an end-fed half-wave antenna. That is, it is a piece of wire one-half wavelength long with the feedline connected at one end. Like a dipole, it might be an odd multiple of half wavelengths: λ/2, 3λ/2, 5λ/2, and so on. Unlike a center-fed dipole, an end-fed antenna has a very high input impedance.
How do you install a G5RV antenna?
Does AJ pole antenna need to be grounded?
J-Pole antennas are half wave antennas by design. But instead of an RF ground, the antenna should have an electrical ground to protect it in case of a lightning strike. An electrical ground doesn’t enhance the RF radiation of the antenna, but it is an important safety feature on any installation.