Are end fed antennas any good?
End fed wire antennas can work very well under many circumstances. They have some disadvantages, but with careful installation, they can work well and be particularly versatile offering multi-band operation.
How high should an end fed antenna be?
I would get both up to 30 feet or more if possible. Yes for distance QSO’s the higher the better.
What is an end fed antenna?
As the name suggests, an “end-fed” antenna is just that: the radiating element is fed at one of its ends, instead of somewhere in-between its two ends (i.e., center-fed like a standard dipole, or off-center-fed). A special case of this, is the End-Fed Half-Wave (EFHW) antenna.
How long is a 20 meter end fed antenna?
A standard recommendation (see QST, March 1936, p. 32, “An Unorthodox Antenna”) is an 84′ long end fed and a 17′ long counterpoise (6.5′ for 20m).
Do end fed antennas need a counterpoise?
5 Answers. No, it is not needed, but it can improve the antenna system. An EFHW is simply a half-wave length of wire and a matching device, and that’s it. Counterpoises are commonly added to shunt common mode reflections when operating outside of the wire’s resonant frequency to avoid RFI issues (“RF in the shack”).
Do end fed antennas need radials?
mode current created by the poor feed system flows over the coax shield and mast. would block current on the outside of the coax shield and further reduce the effectiveness of the J-pole antenna. • ALL end fed antennas do need radials or a counterpoise to. work properly.
Does grounding antenna improve reception?
Does grounding the antenna improve the TV reception? Answer: It some rare case it may help the reception a little but usually it does not. Grounding will help reduce the damage and the chance for fire if the TV antenna were struck by lightning.
Can I bend an end fed antenna?
If needed, bend it to make it fit. Your radiation pattern is not great to begin with since your antenna is not that high and inside of your attic. You won’t be making the pattern much worse.
Does an end fed antenna need a counterpoise?
Can a dipole antenna be curved?
One way to fit a dipole antenna in a restricted space is to bend the legs. They can be bent horizontally, drooped downward, or any other imaginable configuration to fit in the space available.
In which direction does a half wave dipole antenna radiate the strongest signal?
In which direction does a half-wave dipole antenna radiate the strongest signal? The radio waves emit out along the length of the dipole outward, and is strongest at the middle.
