Advanced Echolink Interface Foxecho-K7

High Performance AGC for Echolink Interface

Introduction: FD-AGC

Most radio transmissions at VOIP feed point end up with varied audio level. Feeding this unregulated, raw audio to Echolink/VOIP servers may result in a “hard to hear” signals at the other end.

This small, 2 IC board is designed specially to overcome this problem by way of providing some AGC action on the received audio and implement effective tone controls to “Clean up” unwanted stuff.

Picture of the AGC Add-on card for Foxecho-k7:

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