I've gotten at least 4 messages regarding this topic this week, so i made a video so i dont need to type anymore.

How-To: Setting Input Gain & Input EQ Using the Input RTA on Helix Processors
In this video, we go over how to set the input gain on a Helix DSP and how to set the input EQ using its built-in input signal RTA.


1) Find out your radios max undistorted volume number while playing a 0db sine wave

2) Play that same 0db sine wave with the dsp's outputs muted, and adjust the input gain knob(s) until the clipping light turns red. Input gain knobs location will vary on the model of Helix DSP you have

Input gain is now set.

Setting Input RTA

3) Play correlated pink noise through the radio at the same max volume from before

4) Follow the video, i'm not typing that all out