On 15 September 2014 12:18, Ben Hiett <[email protected]> wrote: > if you were wishing to use an rtlsdr to scan and identify signals across its > full tunable range, how long do you think it might take?
It looks like you're reinventing rtl_power. Simplest thing is to run rtl_power and see, surely? You can work backwards from the CSV output, which has one line per frequency hop and a counter for the number of times the frequency was sampled during the integration period. The retuning speed is quite dependent on the exact version of the library you're using. The number of hops you need is dependent on how much bandwidth per hop is usable (I find that you start running into the edge of the filters and get uneven results if you try to grab the full 2.4MHz) > apologies for the vagueness of the question, but i'm only really after a > vague answer for now.. i.e. ballpark in seconds say, or are we talking > minutes, hours or even days! Less than a minute assuming you don't want to dwell on each frequency hop, just grab some power data and move on. Oliver
