The plural noun form of “antenna” comes in two flavors: “antennas” and “antennae.” If you look up antenna in an English dictionary, you’ll see that the plural, antennas, is used to refer to electrical instruments, and antennae, to the protuberances found on the heads of insects.

noun, plural an·ten·nas for 1, an·ten·nae [an-ten-ee] for 2.

Answer. One of the easiest ways to tell the difference between a butterfly and a moth is to look at the antennae. A butterfly’s antennae are club-shaped with a long shaft and a bulb at the end. A moth’s antennae are feathery or saw-edged.

What is another word for antenna?

Antennae (singular: antenna), sometimes referred to as “feelers”, are paired appendages used for sensing in arthropods. Antennae are connected to the first one or two segments of the arthropod head.

antenna

• receiver.
• wire.
• aerial.
• ears.
• feelers.
• whip.
• bird snapper.
• bullwhip.

The best TV antennas you can buy today

1. Mohu Leaf Supreme Pro. Best TV antenna overall.
2. Winegard Elite 7550 Outdoor HDTV Antenna. Best outdoor antenna.
3. Mohu Leaf Metro. Best budget TV antenna.
4. 1byone Amplified HDTV Antenna.
5. Antop AT-800SBS HD Smart Panel Antenna.
6. ClearStream Max-V HDTV Antenna.
7. Antop HD Smart Antenna SBS-301.

The Best Indoor HDTV Antenna

• Our pick. Antennas Direct ClearStream Flex. A powerful TV antenna with flexible installation options.
• Runner-up. RCA ANT3ME. For easier, quicker setup.
• Upgrade pick. Winegard Flatwave Amped Pro. For finding hard-to-receive stations.
• Budget pick. 1byone Digital Amplified Indoor HDTV Antenna.

Wrapping aluminum foil around your antenna will basically increase the surface area and conductivity of the antenna to boost the signal that your TV receives from it.

When you touch an antenna, the capacitance of the touch joint transfers induced RF voltage from your body to receiver already working on noise threshold, resulting in improvement some time. Your body and every other object in path of RF field acts as antenna. More area, more aperture, more gain.

TV aerial amplifiers and signal boosters do work. They can help overcome signal losses because of cable resistance and because of the splitting of signals to multiple TV’s. They won’t however miraculously convert a poor or weak TV signal, into a good reliable signal. But when used right they can fix your signal issues.

The amplifier should be installed as close to the antenna as possible. It´s most commonly attached to the antenna mast using the included U-bolt clamp. Next run a cable from output of the pre-amp, usually labeled “TV OUT” or something similar. This should be the cable run that goes outside from the building.

You certainly can use a distribution amplifier and a preamplifier together in the same antenna system. However, they must be installed so that they both receive power.

Large trees can interfere with TV antenna reception. Tall structures such as trees interfere with the signal by obstructing the signal waves or reflecting them off their foliage. Trees with wet leaves in rainy condition can reflect even more of the signal.

Electromagnetic interference can be caused by many different things like outside power-lines, thunderstorms, LED or fluorescent lights, and solar flares. Many household appliances like a blender, electric heater, popcorn maker, electric blanket, and refrigerators can also cause interference.

If you have a satellite dish mounted to the roof or the side of your house, it is able to be used as an external television antenna. This will allow you to receive digital broadcast television signals that are available in your area. Place the antenna on the back of the dish.

While signal interference would not be a problem for TV reception, it is possible that the satellite dish reflector might physically block a broadcast signal if it is between the Mohu Sky antenna and the TV transmitter.

It is unlikely wifi is interfering with tv signals unless your tv antenna is right beside the wifi transmitter. However, that tv transmitter that is 1.9 miles from your house could be overpowering weaker tv signals coming from further away.

Yes, it’s true that LTE signals from local cell towers can interfere with TV antenna reception. Cell antennas are designed to pull in the very narrow frequency ranges that cell phone providers use and they aren’t very good at pulling in any other sorts of signals… that’s by design.

If the feed pattern is too wide, some of the power radiated from a transmitting antenna will miss the dish surface and go off in the wrong direction, spoiling the pattern of the antenna.

A variety of antenna types are used in satellite communications. The most widely used narrow beam antennas are reflector antennas. For full earth coverage from a geostationary satellite, a horn antenna is used.

Axial, prime focus, or front feed – This is the most common type of feed, with the feed antenna located in front of the dish at the focus, on the beam axis, pointed back toward the dish.

3 dB beamwidth is approximately equal to the angle from the peak of the power to the first null (see figure at right). Parabolic Antenna Beamwidth: Where: BW = antenna beamwidth; 8 = wavelength; d = antenna diameter.

In the radiation pattern of an antenna, the main lobe is the main beam of the antenna where maximum and constant energy radiated by the antenna flows. Beam width is the aperture angle from where most of the power is radiated.

A 2dB or 3dB gain antenna is the compromise in suburban and general settings. A 5dB gain antenna radiates more energy toward the horizon (compared to the 0, 2, and 3dB antennas) to reach radio communication sites that are further apart and less obstructed. Therefore, they are best used in flatlands and open areas.

Antenna Directivity D = maximum radiation intensity of a test antenna / average radiation intensity of test antenna. Therefore D= 4 π(maximum radiation intensity)/total radiation power.

that the directivity of an antenna is defined as the. maximum power intensity radiated, presumably in the. direction of interest, divided by the average power per. unit solid angle radiated in all directions.

By definition, directivity is the ability of an antenna to focus the radiation to a particular direction, whereas, the gain is the ability of the antenna to convert the input power into radio waves in a particular direction.

Antenna gain is the ability of the antenna to radiate more or less in any direction compared to a theoretical antenna. If an antenna could be made as a perfect sphere, it would radiate equally in all directions. Such an antenna is theoretically called an isotropic antenna and does not in fact exist.