Transmission range

The transmission range is the frequency range for which a device is designed by the designer.

Audio area

In amplifiers of the voltage is gain factor v = U ₂ / U ₁ typically of frequency f -dependent: at high and low frequencies, it usually takes from. The range of application of the amplifier is therefore limited by the lower limit frequency f ₁ and the upper limit frequency f ₂ , both also referred to as the transition frequency or cutoff frequency f _c ( c = cutoff ). The transmission range is the frequency range between the lower and upper limit frequency.

The closer the transmission range approaches the audible range ( f ₁ = 20 Hz; f ₂ = 20 kHz), the more natural the sound reproduction.

General

A transmission range is always used when a signal passes through a two (or multiple) gate . All frequencies of the input signal outside the transmission range are heavily attenuated .

Helmuth Willems, Dieter Blank, Hans Mohn: communications engineering (= electrical specialist. Vol. 3). Teubner, Stuttgart 1982, ISBN 3-519-06807-9 .
Roland Enders: The home recording manual. The way to optimal recordings. 3rd, revised edition, revised by Andreas Schulz. Carstensen, Munich 2003, ISBN 3-910098-25-8 .

Remarks

↑ The limit frequency of an electronic circuit is that frequency at which an output variable U _{2 has} dropped to a value of 3 decibels below the input variable U ₁ ; the field size is 70.7% or times as much. ${\ displaystyle 1 / {\ sqrt {2}}}$

Web links

Transmission range for microphones and amplifiers (PDF file; 100 kB)

[1] The limit frequency of an electronic circuit is that frequency at which an output variable U _{2 has} dropped to a value of 3 decibels below the input variable U ₁ ; the field size is 70.7% or times as much. ${\ displaystyle 1 / {\ sqrt {2}}}$