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Want to resurrect your D/D2 MAC kit?
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<blockquote data-quote="Captain Jack" data-source="post: 1081395" data-attributes="member: 243342"><p>The "noise"/sparklies you see at 20.25MHz is actually you hitting the limits of HackRF. It officially only supports up to 20MHz sample rate, so it's just over that limit. It's the USB2 limitation that HackRF uses rather than HackRF itself. I am tempted to get LimeSDR Mini, which supports up to 30MHz but they are rather more expensive.</p><p></p><p>When you say you see cut-points, is it the small black dots running around? I also see it but It's very difficult to see on my TV to the point that they are not visible. For double-cut, it's much worse. You'll see black dots on white and vise versa. I believe it's to do with transitions between components in the time-compressed signal that's causing it.</p></blockquote><p></p>
[QUOTE="Captain Jack, post: 1081395, member: 243342"] The "noise"/sparklies you see at 20.25MHz is actually you hitting the limits of HackRF. It officially only supports up to 20MHz sample rate, so it's just over that limit. It's the USB2 limitation that HackRF uses rather than HackRF itself. I am tempted to get LimeSDR Mini, which supports up to 30MHz but they are rather more expensive. When you say you see cut-points, is it the small black dots running around? I also see it but It's very difficult to see on my TV to the point that they are not visible. For double-cut, it's much worse. You'll see black dots on white and vise versa. I believe it's to do with transitions between components in the time-compressed signal that's causing it. [/QUOTE]
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