This causes standing waves on the transmission line ( a standing wave ratio ( SWR ) greater than one ) which waste energy, and can even overheat the transmitter.
12.
This is indicated by a finite standing wave ratio ( SWR ), the ratio of the amplitude of the wave at the antinode to the amplitude at the node.
13.
The gain relative to an isotropic antenna ( dBi ), front-to-back ratio, standing wave ratio and the general reception pattern are all evident from these numbers.
14.
This may be used to improve the standing wave ratio in order to minimize losses in the transmission line and to present the transmitter or receiver with a standard resistive impedance that it expects to see for optimum operation.
15.
This is most efficiently accomplished using a matching network at the site of the antenna, since simply adjusting a matching network at the transmitter ( or receiver ) would leave the transmission line with a poor standing wave ratio.
16.
The "'power standing wave ratio "'( "'PSWR "') is defined as the square of the VSWR, however this terminology has no physical relation to actual powers involved in transmission.
17.
The degree of mismatch between the feedline and the antenna is measured by an instrument called an SWR meter ( standing wave ratio meter ), which measures the " standing wave ratio " ( SWR ) on the line.
18.
The degree of mismatch between the feedline and the antenna is measured by an instrument called an SWR meter ( standing wave ratio meter ), which measures the " standing wave ratio " ( SWR ) on the line.
19.
If the array had a higher reactance value ( leading to a higher Standing wave ratio ) on one side of the frequency vs the other, it would affect the audio response of that channel and thus the stereo signal would be affected.
20.
This is especially important for transmitting antennas and their feed lines; high standing wave ratio on a radio or TV antenna can distort the signal, increase transmission line loss and potentially damage components in the transmission path, possibly even the transmitter.
