[M.r. Smith]

Updating this thread as I have used the DSP110, then the nearly identical FBQ100 for years. First as a very affordable noise gate & compressor for several different ham radio rigs. Then more recently we were setting up for a remote interview and found a set of squeals we couldn’t remove easily. Rather than kill the audience participation mic, I had an FBQ100 with me and set this up:

We have had a great deal of success and carry either a DSP110 or FBQ100 with us for these remote interviews. We know FB suppression shouldn’t be needed, but often it is just not possible to reposition speakers and mics enough, so hit the FB suppression button and the monitor output is clean. We also have used a 2nd DSP110/FBQ100 for noise suppression and elementary compression on the both input mics after having success suppressing FB on simple remote monitors. The compression settings minimize post-processing of the audio.

Another downside, though is that the JK Audio RemoteMix does exactly that and we have no track separation between telephone audio and local. For this application, that is acceptable as the RemoteMix is far superior in audio quality to the previously used custom boxes with audio transformers!

This setup works well. We could really use some advice on a battery powered equivalent to the DSP110/FBQ100 for better portability. Everything else is battery powered in the diagram above.

Best, Mark