Adding To The Mix

The “studio” for Richmond Radio (presently just a corner of my living room) needs to serve both as place to originate broadcasts and a production facility of sorts.

I think most of the programming on Richmond Radio will be pre-produced, with only occasional live shows. And while I’d love to have a real broadcast console, I 1) don’t have the money for one and 2) need a production oriented mixing board.

To that end I’ve picked up an inexpensive Yamaha MG10/2 mixing console. It’s not the be-all end-all of mixers but it will do the job for now.

The MG10/2 gives me two mono microphone channels and four stereo line channels. Two of the stereo channels can be used as mic channels for a total of four possible mics.

Pre and post fader AUX sends lets me do special setups, like a mix-minus for VOIP interviews.

Here is a view of our FM processor. The Optimod is old (circa 1978) but is a perfectly good compressor/limiter and stereo multiplexer.

Plans for the Optimod are to run mono for most radio broadcasts. With a part 15 signal I don’t need to expend energy broadcasting in stereo. Especially, with a program that will likely not feature a lot of music. The ICOM IC-725 and Uniden scanner are not part of the Richmond Radio setup at this time.

Another option for using the Optimod is to take the ‘test’ L and R outputs, run them through a de-emphasis network and use the resulting compressed and limited signal to drive the input of an internet streaming client.

The next immediate requirement is to construct a microphone pre-amp to boost our dynamic mic signal before feeding it to the mixer.


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