Could you share your EMI test results here for B210 ? On Sun, Jan 20, 2019 at 12:23 PM Mark-Jan Bastian via USRP-users < usrp-users@lists.ettus.com> wrote:
> Hi Dave, > > You could try a shorter USB 3.0 cable, they can be as short as .2 meters. > If running from a laptop, run the laptop from battery, reduces a radiating > power cord and DC/DC charger/switch mode powersupplies from your setup. > > Use a second laptop with/or dedicated spectrum analyser and RF probes to > get > an idea of the sources and power levels, and (sub) harmonics of clocks > involved in your cabling setup, and determine how to might enter one of > the GNSS bands and how you are going to attenuate them. > > Mark-Jan > > On Sat, Jan 19, 2019 at 06:36:03PM +0000, d.des via USRP-users wrote: > > We've experienced some GPS degradation with the B210 running USB3 that > > was bad enough to kick us off a small test platform. The only way we've > > found to reduce the EMI to acceptable levels was to use a USB2 cable to > > force the controller down to the slower speed, and the bandwidth > > reduction makes for a less-useful test. We did a little chamber testing > > and putting the radio in a metal box didn't even help unless we put the > > connected antenna in the box with it. Can anyone share experience or > > ideas? I'm sorry if this has been covered on the list before, I follow > > it sporadically and don't know of a good way to search the archives. > > > > Thanks, > > > > Dave > > > > > > _______________________________________________ > > USRP-users mailing list > > USRP-users@lists.ettus.com > > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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