errrrr 0.8mS is 1250Hz..... On Thu, Mar 3, 2016 at 6:30 PM, Richard Bell <richard.be...@gmail.com> wrote:
> I see thanks. My BW is several hundred MHz wide, so no all DSP tuning for > me. > > Rich > > On Thu, Mar 3, 2016 at 5:57 PM, Derek Kozel <derek.ko...@ettus.com> wrote: > >> Also if your frequency hopping is within the analog bandwidth of the >> radio you may be able to use DSP tuning, which has almost instantaneous >> reactions. >> >> >> On Thu, Mar 3, 2016 at 5:39 PM, Marcus D. Leech <mle...@ripnet.com> >> wrote: >> >>> On 03/03/2016 08:35 PM, Richard Bell wrote: >>> >>>> I was reading in a separate thread that soon to be released UHD code >>>> will allow lock times on the order of 0.8 ms. Does this mean the fastest we >>>> should expect to get a frequency hopping radio to work is at a hop rate of >>>> 1/0.008 = 125 Hz? >>>> >>>> Thanks, >>>> Rich >>>> >>>> With that particular radio, yes. >>> >>> That was for the B2xx series and E3xx series, which are based on the >>> AD9361/AD9364 chips, which were never really designed for >>> fast frequency-hopping applications. >>> >>> The other RF cards, like WBX, SBX, CBX have faster PLL synthesizers, so >>> faster hopping is possible, although there are host-to-radio >>> transaction times to consider as well. >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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