I think Fusion is a wider protocol. You should be using a BW of 12.5 or more -- at least I would. Any time I've monitored fusion, I used a looser filter (high bw setting).
And the signal you have is nearly abysmal. Yous houldn't expect anything to decode well (regardless of protocol) without at least a 20 dB SNR.
Mike
The signal is definitely horrible, yes-but I can get intelligible voice out of weaker signals with NXDN, DMR, P25, etc. So I do think that the Fusion decoding does have room for improvement - its definitely not as efficient with decoding weak signals as the other protocols [yet].
As for the bandwidth, I was just playing around with it, I tried it on all of the available bw settings and I just happened to take the screenshot as I was trying 9.5. I've never gotten half-rate decoding before either, that's new to me.
Decoding for signals with good strength doesn't seem to be an issue though