That‘s ok. I can add arbitrarily long guard intervals, where I need to change the gain. I actually can not leave the radio gain at the highest needed, because I need about 30dB gain difference and at -30dB the ADC resolution isn‘t sufficient anymore.
But if you could have a look at the pictures I posted on stackoverflow (Link below in my original post), it’s odd, that there is so much difference between the result with B210 and X310. > Am 29.03.2023 um 16:04 schrieb Jeff Long <willco...@gmail.com>: > > > You will not get a radio to adjust its gain anywhere near that quickly. You > could leave the radio gain at the highest you will need, and vary the > amplitude of your signal. > >> On Tue, Mar 28, 2023 at 5:46 PM Nicolas Buhr <buhr.nico...@gmx.de> wrote: >> Hi everyone, >> >> I already posted this to stackoverflow, but maybe somebody here can help me >> as well. >> >> I’m working with a USRP B210/X310 and I’m trying to send a frame with >> containing some payload, with synchronization sequences before and after the >> payload. For interesting measurements bit error rate measurements, I want to >> get a low SNR for the payload. Since I need a much better SNR for more >> synchronization, I’m trying to send the synchronization sequence with a high >> gain, while sending the payload with a much lower gain. >> >> Trying to implement this I encountered some unexpected behavior while using >> the tagged stream commands for the GNURadio block. So I went back and made >> the most simple setup, I could imagine. >> >> The results and the actual problem can be seen in the screenshots in my >> stackoverflow post: >> https://stackoverflow.com/questions/75869595/gnuradio-usrp-stream-tag-execution-not-as-expected >> >> Any ideas, where to look for/how to remove the error? >> >> >> Thanks in advance, >> >> Nicolas Buhr
