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Return loss is related to both standing wave ratio (SWR) and reflection coefficient (Γ). Increasing return loss corresponds to lower SWR. Return loss is a measure of how well devices or lines are matched. A match is good if the return loss is high. A high return loss is desirable and results in a lower insertion loss.
The extra loss may be due to intrinsic loss in the DUT and/or mismatch. In case of extra loss the insertion loss is defined to be positive. The negative of insertion loss expressed in decibels is defined as insertion gain and is equal to the scalar logarithmic gain (see: definition above).
Echo is measured as echo return loss (ERL). This is the ratio, expressed in decibels, of the original signal and its echo. [8] High values mean the echo is very weak, while low values mean the echo is very strong. Negative indicate the echo is stronger than the original signal, which if left unchecked would cause audio feedback.
In telecommunications, balance return loss is one of two things: A measure of the degree of balance between two impedances connected to two conjugate sides of a hybrid set, coil, network, or junction. A measure of the effectiveness with which a balancing network simulates the impedance of a two-wire circuit at a hybrid coil.
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The insertion loss of an ideal directional coupler will consist entirely of the coupling loss. In a real directional coupler, however, the insertion loss consists of a combination of coupling loss, dielectric loss, conductor loss, and VSWR loss.
Robert Brokamp: Now, if you decide to sell an investment to take the loss on your tax return, you can't buy it back within 30 days of the sale date. Otherwise, the loss is considered a wash sale ...
Eliminating a tax on social security would mean a loss of tax revenue for the federal government, which would then either add to the deficit or need to be offset by cuts. Show comments Advertisement