My guess is that the startup transient time On the B210 is slightly longer and you’ll need to compensate for that.
On average the B210 output power will be perhaps 3-4dB lower than N310. But that should not make much difference at close range. Sent from my iPhone > On Mar 4, 2021, at 5:18 AM, Johannes Demel via USRP-users > <usrp-users@lists.ettus.com> wrote: > > Hi all, > > I see some very odd behavior with a B210. I have this simple sine flowgraph > attached. My RX and TX antennae are approximately 1m apart. I just send a > sine and receive it with an acceptable power level. > > Though, my application uses burst transmission. Here, things start to fail. > For some reason, TX bursts have very low output power. I make sure, all > bursts are scaled to match the output level in my `sine_test.grc` flowgraph. > > With 2 N310s, I can observe very reliable communication. If I swap one of > those for a B210, I'm barely able to receive a B210s own bursts. I set TX > gain to 90 and I could observe an improvement. Though, this is still far from > what I'd expect after my sine test. > > Is there an issue with burst transmission and B210s? Do I need to take any > special precautions? > > Cheers > Johannes > > > > -- > Johannes Demel M.Sc. > Research Engineer > > University of Bremen > Department of Communications Engineering > Faculty 1 - Physics / Electrical Engineering > NW1, N2400 > Otto-Hahn-Allee NW1 > 28359 Bremen > > Phone +49 421 218-62393 > de...@ant.uni-bremen.de > > Secretariat > Tel. +49 421 218-62390 > pre...@ant.uni-bremen.de > > www.uni-bremen.de/en > > University of Bremen - Established 1971 > <sine_test.grc> > _______________________________________________ > 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
