Yes, that I've tried. The others at 370, <360, etc would not lock, maybe they're weaker or maybe it was the time of day I tried. I haven't retried the others since I first posted about it. There's an audio feed at 1075 SR that locks reliably, it actually blind scanned in. I haven't seen anything blind scan at less than 1000 SR I'm pretty sure.
Do you have an Ebay link to the exact receiver you're using? I might pick one up.