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.

How long is an end fed antenna?

It is important to use a counterpoise. 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)….Wire Lengths for Various Band Combinations.

What is the impedance of an end fed half wave antenna?

The popular End-Fed Half-Wave (EFHW) Antenna is an easily portable, high-impedance (2,000-4,000 ohm) wire antenna that resonates on its fundamental frequency and all harmonics above.

How tall does a half wave antenna need to be?

at a height of 10 feet or 50 feet. Note that 60 meters is not included on the list. In addition to the connections to the antenna wire and coax, the instructions suggest MyAntennas End-Fed Half-Wave Antenna for 80 – 10 Meters Bottom Line The EFHW-8010-1K provides an easy-to-deploy antenna that can be operated on

How tall is a 160 meter radio antenna?

In fact, it looks more like an end-fed 1/4 wave 160 meter antenna (130 ft or 39.624 m long) which goes up some 25 feet (7-8 m), then over horizontally, at an average of 25 feet (7

In practice the impedance at the end of an end fed half wavelength antenna is on the order of 1800 to 5000 ohms. It is often commented that the End Fed Half Wavelength Antenna needs no “counterpoise” or radials to work. In practice this type of antenna is often used in the field with no “counterpoise” and it performs well.

How does an efhw half wave antenna work?

Let’s call it a “EFHW” Works on a similar principle to a Zepp and J-Pole ~0.5 Wave-Length wire on lowest band (130ft on 80m, 67ft on 40m) Fed from one end using a transformer in a box

https://www.youtube.com/watch?v=ff-ClsCDpYQ

Will a 40 meter dipole work on 80 meters?

A doublet antenna (dipole), cut for 80 meters, will not work on 40 meters because 7 MHz is an even harmonic multiple of 3.5 MHz.

How long is an 80 meter dipole antenna?

Since an 80 meter dipole is approximately 130 feet long, and a 160 meter dipole is approximately 250 feet long, this space reduction can be critical in getting the antenna to fit into our typical backyards.

Does a dipole antenna have to be straight?

Dipole antennas need not be installed in a horizontal straight line. They are generally tolerant of bending, sloping or drooping as required by the antenna site. Remember, however, that dipole antennas are RF conductors. (So does the coax shield, unless it is routed at 90° from the antenna.)

Does a long wire antenna have to be straight?

The wire may be straight or it may be strung back and forth between trees or walls just to get enough wire into the air. Such antennas are usually not as effective as antennas whose length is adjusted to resonate at the wavelength to be used.

How is counterpoise length calculated?

That’s because there are no specific lengths for a counterpoise. If it was a specific length, it would be called a resonant antenna radial. You can calculate the antenna radial length you need for a particular frequency of interest using the following formula: Length = 234 / frequency.

How long is a 40 meter dipole antenna?

Read more about . . . . Dipole Length Calculations.

Is a full wavelength antenna better?

It’s length (half of the wavelength) gives you the better performance than other lengths….. It may be gain, efficiency, directivity, return loss, etc….. I think the gain of the half wave dipole is higher than the full wave length antenna. I also see that the input impedance of the full wave dipole is infinity.

How high should a dipole be off the ground?

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.

Can a dipole antenna be bent?

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.

How to build an 80 metre end fed antenna?

The end fed antenna is essentially half a dipole, it uses a good earth connection to complete the arrangement. Below is one example of how to build an 80 metre band long wire antenna for a house with a smaller garden.

Can a end fed antenna be used as a dipole?

However, we can reduce the space needed to a quarter wavelength if we decide to use an end fed antenna. The end fed antenna is essentially half a dipole, it uses a good earth connection to complete the arangment. Below is one example of how to build an 80 metre band long wire antenna for a house with a smaller garden.

How tall is the Amazon dipole 7 band antenna?

Antenna is in inverted V with balun at 30 feet and ends at 20 feet. Update, I have been using this antenna with FT8 software. On 17 meters to 40 meters at 40 watts I have QSO with Japan, Spain, Ukraine, Portugal, Brazil, Canary Islands. This antenna is great.

Is the efhw-8010-1k a multi-band antenna?

EFHW-8010-1K Multi-Band End Fed Half Wave Antenna This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate.