When you are setting the bandwidth of the HackRF you are selecting which hardware filter is used. I believe if you specify a bandwidth, it needs to be one of the supported filter values -- 1.75, 2.5, 3.5, 5, 5.5, 6, 7, 8, 9, 10, 12, 14, 15, and 20 MHz.
On Mon, Nov 16, 2015 at 5:10 PM, 김상혁 <[email protected]> wrote: > I heard HackRF One support up to 20 MHz of bandwidth. > > But, I can’t handle this value properly. I tried to adjust bandwidth on > GNURadio-Companion by changing some value o > > 1) Osmocom sink (Ch0: Bandwidth) - It was initialized by 0 and it means > automatic setting. I vary this value but, never effect. > 2) Modulation (Excess BW) - It means Root-raised cosine filter excess > bandwidth (float) and usually range of ~ 0.35. When I change this value, it > was little effect on bandwidth(larger value is more bandwidth) > 3) Sample rate - I found that sample rate is directly related with > bandwidth. I tried adjust this and it was so cool. When I use large value > of amp_rate, however, the FFT plot graph was stutter. Is it computational > problem? > > I’m curious to how to control bandwidth up to 20MHz. > > Thanks for any reply > > Shawn. > _______________________________________________ > HackRF-dev mailing list > [email protected] > https://pairlist9.pair.net/mailman/listinfo/hackrf-dev >
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