Usually, when tuning my Lime board (to, for instance, a NWR station), I get a spectrum like this:
Just what you’d expect. (I’m not sure what the broader bands are—they move in the opposite direction of tuning, or sometimes vanish if I tune e.g. 163.550 instead of 162.550. Any ideas what they might be?)
Sometimes, though, I get something like this:
When I do, the pattern stays more or less the same tuning up and down the spectrum. (I’ve seen a similar issue on higher bands, too.) Eventually, on a tune operation, it goes away on its own, without any indication as to why.
Is this faulty hardware? Does SDRAngel set some registers incorrectly when tuning?