I've never been a big fan of what the Automatic Noise Limiter (ANL) does to receive audio on most CB & 10 meter radios. To me, it seems like it just whacks a lot of high frequencies giving you the illusion of lower noise at the expense of fidelity. Unfortunately, the NB/ANL setup on most CB & 10 meter radios is configured where to have the NB on, you also have to have the ANL on. Has anyone ever modified a radio like so you can control NB independent of ANL or are they basically the same circuit on most radios? Example: Cobra 29 LTD Classic.