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Yeah, now, so there are some other issues. So the codecs I was talking about. So DMR uses an MB2 technology, very efficient. It's widely used in commercial and AMGIR as we know. Fusion, which is amateur radio. That's quote unquote YASU version of C4 FM. That's MB2 as well. And it's proprietary. But it uses the same voice chip as DMR. APCO25, that's an IMBE. So it's a phase one or an MB phase two codec, depending on what it is. So phase two uses the modern MB2 codec. While the older phase one, that relied on the earlier IMBE codec. And P25 applies highly aggressive error correction to the vocoder. And that's why it survives noisy environments. In fact, I will think the error correction in the original P25 was better than the phase two. But that's just my opinion. D-star, that just uses MB. And that's the lossy version of it.