what is a an antenna counterpoise
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What's a Counterpoise? 3 And Counter means counter, exactly as in English. Poise means weight. So the word literally means counterweight and that is what a counterpoise is in an antenna system, where it was originally used. Simply put, a ground plane that the antenna system could mirror itself in.
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Definitions &Translations Contrapposto Contrapposto is an Italian term that means counterpose. It is used in the visual arts to describe a human figure standing with most of its weight on one foot so that its shoulders and arms twist off-axis from the hips and legs.
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antenna Most antennae are organs of touch, but some are sensitive to odors and other stimuli. A metallic device for sending or receiving electromagnetic waves, such as radio waves. Some antennas can send waves in or receive waves from all directions; others are designed to work only in a range of directions.
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- This is the common “Base” antenna used for Point-to-Multi-Point or can be an omni-directional antenna for your car. An Omni-Directional antenna would serve as your main antenna to distribute the signal to other computers or devices (such as wireless printers, PDAs, etc) in your workgroup.
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Small Antennas Are Big On Efficiency CPL is a revolution in antenna design offering a more powerful and efficient radiator over a wider band in a smaller footprint than before possible. A CPL antenna can be thought of as two antennas fabricated on a common substrate, generating orthogonal electric and magnetic wave patterns that together form a dense RF wave near the surface of the planar circuitry prior to propagation.
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poor Meaning of inferior quality is from c.1300. Of inhabited places from c.1300; of soil, etc., from late 14c. The poor boy sandwich, made of simple but filling ingredients, was invented and named in New Orleans in 1921. To poor mouth deny one's advantages is from 1965 (to make a poor mouth whine is Scottish dialect from 1822). Slang poor man's _____ the cheaper alternative to _____, is from 1854.
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- Counter balance valves HYDAC counterbalance valves are direct acting poppet valves with integrated check valve which enable a jerk-free movement on the part of consumers in the presence of over-centre loads.
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12 Wireless Router Antenna Distance Coverage Comparison Omni Antenna – An omnidirectional antenna is an antenna that has a non-directional pattern (circular pattern) in a given plane with a directional pattern in any orthogonal plane. Examples of omnidirectional antennas are dipoles and collinear antennas. Omni Antenna is widely used in most routers.
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CATEGORYROTATORNEW PRODUCTS AutoJog unlocks and frees antenna before turning -- great for older rotators with sticky brakes. It jogs rotator backwards slightly to ease brake pressure enough to release. Offset feature allows you to calibrate display to show actual beam heading.our antenna automatically rotates to desired direction precisely and safely. First,DCU-3 makes sure your antenna is free and safely unlocked before turning begins and then turns off. your motor before your antenna reaches its finaldestination. Your antenna gently coasts to a stop before the brake locks.
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Contrapposto Definition Contrapposto is an Italian term meaning counterpose. This was established during early Greek period. This is used in visual art and describes a human figure where the hips and legs are positioned in a separate direction from its head and shoulders.
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Omni Antenna vs. Directional Antenna An isotropic antenna is a theoretical antenna with a uniform three-dimensional radiation pattern (similar to a light bulb with no reflector). In other words, a theoretical isotropic antenna has a perfect 360 degree vertical and horizontal beamwidth or a spherical radiation pattern.ipole antennas are said to have a gain of 2.14 dBi, which is in comparison to an isotropic antenna. The higher the gain of the antennas, the smaller the vertical beamwidth is. Imagine the radiation pattern of an isotropic antenna as a balloon, which extends from the antenna equally in all directions.
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Thanks for contacting us! Once the Antenna is mounted and cales are hooked up, you simply run a Channel Scan on your TV and prepare yourself to be amazed at the results!If you live in an area which has multiple TV towers or other cities close by then the LAVA HD8008 is the preferred Antenna of choice.
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- I found that the length of the counterpoise isn’t really that critical and good SWR can be achieved as long as counterpoise is within +/- 5% of the length indicated about. Lower frequency bands seem to be more sensitive to the length of the counterpoise wire, while on 10 m band, almost any piece of wire will do.
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Television antenna Television antennas are manufactured in two different types: indoor antennas, to be located on top of or next to the television set, and outdoor antennas, mounted on a mast on top of the owner's house.
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- equipoise. 1  equal distribution of weight; state of balance, or equilibrium. 2  a weight or force that balances another; counterbalance.
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Television antenna A television antenna, or TV aerial, is an antenna specifically designed for the reception of over-the-air broadcast television signals, which are transmitted at frequencies from about 41 to 250 MHz in the VHF band, and 470 to 960 MHz in the UHF band in different countries.
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Antenna polarisation or polarization Polarisation is an important factor for RF antennas and radio communications in general. Both RF antennas and electromagnetic waves are said to have a polarization. For the electromagnetic wave the polarization is effectively the plane in which the electric wave vibrates.
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The iPhone 4 Antenna Problems Explained - and Fixed Luckily, the way to fix the iPhone 4 antenna problem is pretty simple: prevent your finger or hand from bridging the antenna and you'll prevent signal strength from dropping.Steve Jobs' initial response was to tell users not to hold the phone that way, but that’s obviously not a reasonable (or always possible) option.he problem the iPhone 4 experiences with its antenna has to do with what’s called bridging the antenna. This occurs when a hand or finger covers the antenna area on the side of the iPhone.
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Radar Basics The parabolic dish antenna is the form most frequently used in the radar engineering of installed antenna types of. Figure 1 illustrates the parabolic antenna. A dish antenna consists of one circular parabolic reflector and a point source situated in the focal point of this reflector.This point source is called “primary feed” or “feed”. The circular parabolic (paraboloid) reflector is constructed of metal, usually a frame covered by metal mesh at the inner side. dish antenna consists of one circular parabolic reflector and a point source situated in the focal point of this reflector. This point source is called “primary feed” or “feed”.
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- The second type of amplified TV antenna are those antennas that don't come with an amplifier. The proper amplifier is chosen to match the reception conditions and is purchased separately from the antenna. These signal amplifiers are designed to be mounted near the antenna onto the mast pipe.This type of amplifier is called a mast mounted amplifier. There are definite advantages to a mast mount amplifier.ny TV antenna can be amplified. There are basically two types of amplified TV antennas. The first type most referred to as an amplified TV antenna are those antennas with the antenna amplifier built into the antenna housing.
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Clinical equipoise Clinical equipoise, also known as the principle of equipoise, provides the ethical basis for medical research that involves assigning patients to different treatment arms of a clinical trial.linical equipoise is distinguished from theoretical equipoise, which requires evidence on behalf of the alternative treatments to be exactly balanced and thus yields a very fragile epistemic threshold for favoring one treatment over the other.
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- Radar jamming and deception (electronic countermeasures) is the intentional emission of radio frequency signals to interfere with the operation of a radar by saturating its receiver with noise or false information. There are two types of radar jamming: Mechanical and Electronic jamming.
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- A photograph of a typical cornerreflector is shown in figure 13.This antenna has moderately high gain, butits most important pattern feature is that theforward (main beam) gain is much higherthan the gain in the opposite direction. Thisis called the front-to-back ratio and isevident in the pattern shown in figure 14.
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- The second type of amplified TV antenna are those antennas that don't come with an amplifier. The proper amplifier is chosen to match the reception conditions and is purchased separately from the antenna. These signal amplifiers are designed to be mounted near the antenna onto the mast pipe.
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COUNTERPOISE Familiarity information: COUNTERPOISE used as a noun is very rare. • COUNTERPOISE (verb). The verb COUNTERPOISE has 1 sense: 1. constitute a counterweight or counterbalance to. Familiarity information: COUNTERPOISE used as a verb is very rare.
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Clockspring From Wikipedia, the free encyclopedia. Clocksprings generally consist of a flat multicore cable wound in a spiral shape similar to a clock spring, hence the name, but the name is also given to devices fulfilling the same purpose but which use spring-loaded brushes contacting concentric slip rings.rom Wikipedia, the free encyclopedia. Clocksprings generally consist of a flat multicore cable wound in a spiral shape similar to a clock spring, hence the name, but the name is also given to devices fulfilling the same purpose but which use spring-loaded brushes contacting concentric slip rings.