0
What else can I help you with?
What is the difference between Dbi and Dbm?
There are a few terms that need to be understood. [dBm,dBd,dBi and dB] For antennas, a common reference unit is the dBi, which states the gain of an antenna as referenced to an ISOTROPIC source. An Isotropic source is the perfect omnidirectional radiator, a true "Point Source", and does not exist in nature. Consider it a source which is the center of the sphere and the energy is coming equally out of it as a sphere. Now in reality nothing like that exists. It's also 2.41 dB BIGGER than the next common unit of antenna gain, the dBd, When you convert that to a real antenna. So a simple dipole antenna has a gain of 2.41dBi, and a gain of 0dBd, since we're comparing it to itself. Now lets talk about dBm, dBm is not is reference to anything else but the used as an actual gain ( say amplifiers ) , P(dBm)=10*LOG(1000*Power in milliwatts,10), an amp with an output of 30dBm puts out 1 Watt. It is not in refernce to two power level but directly correlating the gain of a device. Now when you talk about a dB it is a relative measure of two different power levels. 10log (p1/p2, 10).
Why do radio tower antennas have to be so long?
1). The station has better coverage over a wider area if it transmits its signal from high off the ground,above the trees and buildings etc.2). The station has better coverage over a wider area, and its signal has better immunity to noise,if its transmitting antenna is vertical.3). The length of a transmitting antenna has to be an appreciable portion of the station's wavelength.The shortest practical antenna for broadcast service is not less than about 35% of the wavelength.For AM radio, where the frequency is around 1 MHz, the wavelength is more than 900 feet for stationsin the center of the dial! So most often, the tower you see at an AM station is not the support for theantenna, the tower is the antenna.4). For FM broadcast, where the frequency is around 100 MHz, the wavelength is a more manageable3 meters or so. The transmitting antenna is the set of hooks, cups, claws, or semicircles you seemounted high on the tower, placed there to get the signal up over the trees and other obstructions.
Grasshoppers have how many pairs of antenna?
It has 1 pair of antenna and 1 pair of antennae, people get confused and think it has 2 pair of antenna.
If you need to implement 5G system, discuss the following considerations:1. Cells and geography coverage: how to cover more areas in a building. (10 marks)2. Monthly billing issues if massive IOT and various WLAN are considered. (10 marks)?
implementing an antenna with greater coverage capacity
What is the coverage area of 1 pail of paint in square meter?
The coverage area of 1 pail of paint typically ranges from 10 to 15 square meters, depending on the type of paint and the surface being covered. Factors such as texture, application method, and the number of coats required can also affect the actual coverage. Always check the manufacturer's specifications for the most accurate information.
How do you increase the strength to the receiving antenna?
I think the question needs to know how to increase signal strength from Receiving Antenna.1. Use Better and bigger Ground. This will not only increase signal but will also increase S/N ratio.2. Generally increasing the size of antenna helps.3. Use elements that can increase the effective area of the antenna.4. Ensure that the antenna is well matched to the feeder feeding the RF signal.
What is thin linear antenna?
A thin antenna has nothing to do with the physical size of the antenna. Any antenna whose length is less than (1/10) of the wavelength of the signal is thin antenna. A linear antenna is one in which the current distribution is linear or bears a linear relationship with some parameter, say voltage of the antenna...... Mukesh
What is the advantages and disadvantages of satellite telecommunication system?
1) The coverage area of a satellite greatly exceeds.2) Transmission cost of a satellite is independent of the distance from the center of the coverage area. 3) Satellite to satellite communication is very precise. 4) Higher bandwidths are available for use.
How many antenna are on the top of the Eiffel tower?
1.....-.-
What antenna channel is tbs?
Channel 45-1
How many antenna connectors are on the WWAN card?
1
Does a handheld CB radio need an antenna?
Not necessarily, but the antenna does need to be grounded.
