On 9/21/13, Adam Nielsen <a.nielsen(a)shikadi.net> wrote:
From what I can find, an analogue TV signal has a
bandwidth of around 6-8MHz. The HackRF is an SDR that works over
USB2.0 and can capture a chunk of RF spectrum up to 20MHz, which
should be ample for one analogue (or even digital) TV signal, perhaps
even two if the channels are close enough together.
USB 2.0 has no problem with 30MB/s, and if you take care of all the
quirks (only 1 device, no programs running, "turbo mode" aka >1MB bulk
transfers) you can go up to ~40MB/s
How much is
actually needed? You know there's USB 3 these days,
which can transmit about a megabit with some change (due to
overhead).
A megabit? :-) USB3.0 has a signalling rate of 5Gbps and according to
Wikipedia, a usable data rate of up to 4Gbps. If you can fit 20MHz of
RF over USB2.0 at 480Mbps, you should be able to start approaching
200MHz of bandwidth with a USB3.0 SDR!
Cypress FX3 does 360MB/s in real life.
--
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