# 2 meter 5 8 wave antenna

## 29363 best questions for 2 meter 5 8 wave antenna

We've collected 29363 best questions in the «2 meter 5 8 wave antenna» category so you can quickly find the answer to your question!

## Content

FAQ

Those interested in the 2 meter 5 8 wave antenna category often ask the following questions:

### ☑️ Can a 5 / 8 wave antenna be fudged?

• With a 5/8 wave antenna the 'starting' impedance isn't anywhere close to where it can be 'fudged' by just tilting the radials. You have to do that 'matching' of impedances by some other method. Those 'other methods' include both capacitive and inductive reactances, you can do it with either a capacitor or a coil.

### ☑️ What is the difference between 1/2 wave and 5/8 wave antenna?

The 1/2 wave antenna is usable where you do not have a ground plane. For instance, if you car has a fiberglass body. The 5/8 wave antenna has the most gain and would probably be your better choice. (I just use a 1/4 wave whip.)

### ☑️ How big is a 5 / 8 wave vertical antenna?

• As a vertical monopole antenna is half the length of a dipole, this equates to about a five eighths wavelength vertical monopole antenna. When used as a vertical radiator against a ground plane this translates to a length of 5/8 wavelength.

### ☑️ What is the gain of a 5 / 8 wave antenna?

• A quarter wave ground plane antenna has a radiation pattern that produces maximum gain at about 25 degrees and a half wave antenna drops that angle to 20 degrees, and the 5/8 wave antenna further drops that angle to 16 degrees.

### ☑️ Can you use a 5 8 wave antenna for cb?

• A 5/8 wave is about as long as you can make an element (or.64 wavelength to be more accurate), without losing antenna performance. Typically for antennas this translates approx to 22' 6" at 27Mhz. Many CB base antennas are 24' in physical length,

## Video from 2 meter 5 8 wave antenna

We’ve collected for you several video answers to questions from the «2 meter 5 8 wave antenna» category:

## Top 29343 questions from 2 meter 5 8 wave antenna

We’ve collected for you 29343 similar questions from the «2 meter 5 8 wave antenna» category:

### How does a quarter wave antenna work?

The monopole is often used as a resonant antenna; the rod functions as an open resonator for radio waves, oscillating with standing waves of voltage and current along its length. Therefore the length of the antenna is determined by the wavelength of the radio waves it is used with.

### Why does wave length of antenna matter?

This frequency is determined by the length of the antenna and the speed of light in the antenna material. In this resonant condition, the electrons' motion and the incoming electric field are always in the same direction, so every wavelength of the EM wave builds up more motion and puts more energy into the antenna.

### How to make a long wave antenna?

• Cut 8 pieces of copper wire that are each 17 inches (43 cm). Get 12-gauge uninsulated copper wire to make your antenna. Measure out 8 separate pieces that are 17 inches (43 cm) long and mark the lengths with a marker. Use a pair of wire cutters to snip the wires on your marks so you have 8 pieces.

### How long is a quarter wave antenna?

Therefore the length of the antenna is determined by the wavelength of the radio waves it is used with. The most common form is the quarter-wave monopole, in which the antenna is approximately one quarter of the wavelength of the radio waves.

### What wave has 10.8 meter wavelength?

A wave with a frequency of 27.759 MHz.

### Is a half wave antenna better than a quarter wave?

A half-wave antenna is a good choice when your entire device is much smaller than a quarter-wavelength, or when you are building an antenna that is physically separated from the transmitter.

### Which is better quarter wave or half wave sloper antenna?

• The Half-Wave Dipole Sloper Antenna (HWDSA) Half-wave dipole sloper antenna (drawing not to scale) A half-wavelength dipole antenna will give better results than the quarter-wave (single band) sloper described above. The drawback is that you need more horizontal space!

### What is the formula for quarter wave antenna?

• Figure 2. - a marconi antenna. The formula for quarter wave is L = 71.25 metres / freq (mhz) and in feet L = 234 / freq (mhz). Note the variance from the standard wavelength formula of 300 / freq. This is because we allow for "velocity factor" of 5% and our wavelength formula becomes 285 / freq.

### How does an antenna work voltage standing wave?

When an antenna is not matched to the receiver, power is reflected (so that the reflection coefficient, , is not zero). This causes a "reflected voltage wave", which creates standing waves along the transmission line. The result are the peaks and valleys as seen in Figure 1.

### Which is better full wave or vertical antenna?

• A full wavelength vertical antenna will have a big null at the horizon with lobes pointing up and down and a wet noodle will probably work better unless your talking to the space shuttle. Click to expand... This statement, while 100% true, is worded in such a way that it's making me lol want to try making a wet noodle resonant on 2m or 70cm.

### Is the tridion cage a live wave antenna?

• The appearance of the Live Wave Tv Antenna For four is not only the exterior of the Tridion cage, which is famous for its Live Wave Tv Antenna. It has a unique three-dimensional design style, which makes the body lines appear bumpy and unobtrusive, regardless of Mercedes or parked on the road.

### What is calculation for full wave antenna length?

The formulas for calculating the approximate length of a full-wave loop antenna are: Full-wave loop in feet = 1005 / frequency in MHz. Full-wave in meters = 306 / frequency in MHz.

### How does a quarter wave vertical antenna work?

• Basic quarter wavelength vertical antenna. As the name suggests the quarter wave vertical antenna consists of a quarter wavelength vertical element. The antenna is what is termed "un-balanced" having one connection to the vertical element and using an earth connection or simulated earth connection to provide an image for the other connection.

### Is there an antenna for bose wave radio?

Boost FM reception on your Wave® system with this external dipole FM antenna. Recommended wherever FM signal strength is weak for one or more stations.

### What are principal planes in antenna wave propagation?

The principal plane in wave propagation is the E-plane and the H-plane of an antenna. The E-plane consists of the electric field vector, and by convention, it's the direction in which the wave is said to be 'polarized'. The H-plane consists of magnetic field vector of the wave. The electric field vector and the magnetic field vector are perpendicular to each other, and the direction in which the wave propagates (moves) is perpendicular to both of them.

### Radiation resistance of quarter wave monopole antenna is?

The radiation resistance of quarter wave monopole is 36.5 ohms

### What is the definition of meter wave?

I don't think that there is a wave with that name; it might refer to a wave that has a wavelength of approximately a meter.

### How tall is a quarter wave vertical whip antenna?

• One common mobile antenna is a quarter-wave vertical whip. This is roughly nine feet (2.7 metres) tall and mounted low on the vehicle body, and often has a spring and ball mount. A electrical length, and to enhance its resilience to scraping and striking overhead objects.

### Relation between wave length and size of the antenna?

To decrease antenna height For transmitting a signal of wavelength λ the antenna height must be λ/4. So if we want to send a 1 Hz (λ=3*10^8 m) signal ( very very low frequency) using an antenna , its height must be 75,000 Km ( impossible to build such a huge antenna ). If the same signal is modulated to some high frequency say 88 MHZ ( λ = 3.4 m ) , antenna height needed is 0.8522 m (quite easy to construct !!! ) (88 MHZ is the starting range of Frequency modulation which exists upto 108 MHZ).

### Is there a live wave antenna for four brabus?

• The Live Wave Tv Antenna For four Brabus is based on this, plus a number of conversion kits, and visually, further highlights the sporty style. The Live Wave Tv Antenna For four Brabus modified version introduces the illusion of entering the “circle world”.

### How to build an end fed half wave antenna?

#### What is the best wire for an antenna?

• The best wire to use in making a long wire antenna is a hard drawn copper or copper clad wire of around 12 or 14 gauge. These two wires will produce minimum stretch over long periods.

### How long is a 1 4 wave cb antenna?

#### 102 inches

Yes, taller/longer is better for range of distance when it comes to an antenna and the optimal antenna length is 1/4 wavelength. That translates to 102 inches (8.5 feet), too tall to be practical for most mobile applications.

### Which antenna is best excited by a wave guide?

Horn Antenna is best exited by waveguide

### How to make a quarter wave ground plane antenna?

#### What is the formula for quarter wave antenna?

• Figure 2. - a marconi antenna. The formula for quarter wave is L = 71.25 metres / freq (mhz) and in feet L = 234 / freq (mhz). Note the variance from the standard wavelength formula of 300 / freq. This is because we allow for "velocity factor" of 5% and our wavelength formula becomes 285 / freq.

### What is the beamwidth for half wave dipole antenna?

The directivity of a half-wave dipole antenna is 1.64 (2.15 dB).

### What is the gain of a vertical wave antenna?

• A 1/4 vertical wave antenna will have a near spherical radiation pattern and a gain of 1Dbi. (1 Db advantage compared to Isotropic antenna) If we lengthen the element so that the antenna is now a 1/2 wave vertical, the antenna will begin to concentrate the signal and the radiation pattern will compress and look more like a doughnut.

### 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.

A receiving antenna does "re-radiate" some of the power it receives, but not all. Some of the power it receives proceeds into the receiver ... which is the only way we detect the signal being received by the antenna.

### What is the gain of a half wave antenna?

• The first is GAIN. The computer shows a ground plane antenna (mounted 1 foot above ground) has a gain of 2.41 dBd lowerthan a dipole's gain (free space). The half wave antenna (mounted 1 foot above ground) shows only 1.56 dBd lowerthan a dipole (free space), so you've increase your overall gain .85 dB over the ground plane antenna!

### How long is quarter wave antenna for 2m band?

This element is 1/4 wavelength long, or about 19 inches for the 2 meter band. Next up are the ground radials. a ground plane will often have three or four radials, each 1/4 wavelength long.

### What kind of meter measures standing wave ratio?

• A standing wave ratio meter – also known as an SWR meter, ISWR meter (current “I” SWR), or VSWR meter (voltage SWR) – is defined as a device that measures the standing wave ratio (SWR) in a transmission line. The SWR meter indirectly measures the degree of mismatch between a transmission line and its load (usually an antenna).

### What is the definition for wave meter tubes?

A wave meter tube is a tubular device used to detect wave signals from electronic devices. It can be used to detect microwaves, and waves emitted from televisions.

### What is an electromagnetic wave meter used for?

An EMF meter can measure AC electromagnetic fields, which are usually emitted from man-made sources such as electrical wiring, while gaussmeters or magnetometers measure DC fields, which occur naturally in Earth's geomagnetic field and are emitted from other sources where direct current is present.

### Why does the 5 / 8th wave have 2 degree gain?

• The 2 degree gain of the 5/8th wave is mostly because of increased height over lossy earth. The 2 degree gain of the 5/8th wave is not because of antenna gain, but because of height change. It puts the current further above earth.

### Does a 1/4 wave antenna need a ground plane?

Does a 1/4 wave antenna need a ground plane? Answer: Yes. All 1/4 wave antennas work best if they are installed in the center of a metal ground plane with at least 1/4 wave length radius (1/2 wave length diameter: ~6 inches for 900Mhz and ~3 inches for 2.4Ghz); larger is better.

### How big are the legs of a quarter wave antenna?

• A quarter wavelength (total length) dipole would have legs of 1/8 wavelength each. This is not long enough favorable either. Dipoles of greater wavelengths (which are not odd

### How dose a antenna wave go out into the air?

#### How do radio waves travel through the air?

• 1) Electricity flowing into the transmitter antenna makes electrons vibrate up and down it, producing radio waves. 2) The radio waves travel through the air at the speed of light. 3) When the waves arrive at the receiver antenna, they make electrons vibrate inside it. This produces an electric current that recreates the original signal.

### What is the operational frequency of half wave dipole antenna?

Its resonant frequency is where its length is half a wavelength, so for 100 MHz the wavelength is 3 metres and a 1.5-metre long dipole is resonant. A dipole antenna can be used for many applications within a band of 10-20% around the resonant frequency.

### How to calculate the length of a quarter wave antenna?

• The formula for calculating the approximate length of a quarter-wave vertical antenna is: Quarter-wavelength in feet: 234 / frequency in MHz Quater-wavelength in meters: 71.5 / frequency in MHz

### How to convert coaxial antenna cable to bose wave radio?

#### Can a Bose Wave Antenna be used on an AM radio?

• The noise gets eliminated from the signals and the sound improves impressively. Amazingly, the unit also vastly improves AM signals. Though the Bose Wave Antenna is ideally meant for Bose systems, you can use it with any radio that has a 3.5mm antenna port.

### Which is the best fm antenna for bose wave radio?

• Bose Wave FM Antenna Bose Wave FM Antenna is famous for enhancing your Bose Wave Radio’s operation even in zones and places with little signal coverage and poor reception. The 75 ohm FM antenna for Bose wave radio is a handy accessory that meets my needs.

### What is the formula for a full wave dipole antenna?

936/Frequency = Length (Full wave) 468/Frequency = Length (Half wave) 234/Frequency = Length (Quarter wave)

### What is the formula for a quarter wave dipole antenna?

The length of a quarter wave for constructing one end of a dipole is: 234/MHz = feet of wire. For instance if you have an 80 meter ham radio transceiver and want to construct a dipole to match a frequency of 3.56 MHz (the low power calling frequency) then 234/3.56 = 65.7 feet Next buy a spool of speaker wire, mark off 65 and 3/4 feet, and pull apart the two wires until you reach the mark. Now you have a half wavelength dipole that resonates near 3.56 MHz. Start broadcasting in Morse code and I will meet you on the air! Sandy, KB3EOF

### What is the beam weight for half wave dipole antenna?

What is the beam width for a half wave dipole antenna? Explanation: The beam width is measured between the points on the radiation curve that are 3 dB down from the maximum amplitude of the curve. The maximum amplitude of the pattern occurs at 0° and 180°. The 3-dB down points are 70.7 percent of the maximum.

### How high should1 4 wave 30 meter vertical be?

#### How to calculate the length of a quarter wave antenna?

• The formula for calculating the approximate length of a quarter-wave vertical antenna is: Quarter-wavelength in feet: 234 / frequency in MHz Quater-wavelength in meters: 71.5 / frequency in MHz

### How tall are waves in a 10 meter wave?

• It is believed that the Rayleigh distribution well approximates the statistical distribution of the wave height, so if we estimate 10-meter height, it can be expected that one of the 10 waves is greater than 10.7 meters, one of 100 waves is greater than 15.1 meters, one of 1000 waves is more than meters 18.6. More info.

### How does a standing wave ratio vswr meter work?

#### What is the standing wave ratio ( SWR )?

• The ratio of the maximum radio-frequency voltage to the minimum radio frequency voltage along the transmission line is known as Standing Wave Ratio (SWR). When SWR is recognised in terms of maximum and minimum AC voltage along the transmission lines, it is known as voltage SWR.

### Can a bose wave antenna be used on an am radio?

• The noise gets eliminated from the signals and the sound improves impressively. Amazingly, the unit also vastly improves AM signals. Though the Bose Wave Antenna is ideally meant for Bose systems, you can use it with any radio that has a 3.5mm antenna port.

### What are the three type of wave polarizations radiated by antenna?

• Linear Polarization. Linear polarization refers to an antenna system that is operating with Horizontal and Vertical polarization…
• Slant Polarization…
• Circular Polarization.