Line-of-sight propagation is also said as electro-magnetic radiation or acoustic wave propagation. This includes light emissions traveling in a straight line.
How far from the transmitter the signal travels.
DSL stands for Digital Subscriber Line. Which basically means a telephone line, that has a signal superimosed on it, by a service provider, to enable a broadband internet connection.
Propagation means triggering ie something which fires automatically. Thepropogation of operation is applied with aggregation, if some operation is applied with the high level aggrigate the same operation will be performed with all lower aggregates. For example in aggregation between document and paragraph if we will perform an operation copy with document it will automatically applied with paragraph also. This propagation of operation. kailash
A digital signal requires a repeater, which retransmits the signal in its original form, and an analog signal requires an amplifier, which increases the strength of both the signal and the noise it has accumulated.
The Formula is C=B log_2 (1+SNR) = 4000 log_2 (1+1000) = 4000 x 9.9672 = 39868.8.
Basically, modem is used to connect the analog world to the digital world. In other words, you can say it is the device that is used to convert the analog signal to digital signal. For eg. the modem connected with a computer is usually converts the analog signal that comes through the wire to the digital bit bcoz computer can only understands the digital signal...
It is the traveling of the electrical signal down the length of a neuron.
Rectilinear propagation of light theory states that light travels in a straight line.
In wireless communications, fading is deviation or the attenuation that a carrier-modulated telecommunication signal experiences over certain propagation media.
Osmotic pressure. Trans-membrane voltage potential. Rapid signal propagation.
Obviously one tool is your eyes. You can look at the area line of site to see if any trees may be in the way of the signal.
Longitudinal.
Solar activity (sunspots in particular), atmospheric conditions, distance, and geography between transmitters and receivers.
Selecting a signaling site and putting your signal in a suitable location is critical. A signaling site is defined as any site, based on your situation that enhances signaling efforts and the likelihood for the signal to be detected by friendly forces. What is a signaling site criterion?
quasi-TEM
groundwaves line of sight skywaves
The signal from the phone has to be in a line of site with a transmission tower. It can't go through a hill or other solid object.
Robert Dean Stolt has written: 'Wide band analog signal propagation in a fiber optic system'