Hi Marcus, Following up on this. I tried transmitting a 100mhz BW LFM chirp with the baseband amplitude scaled down by 1/2 to +-16384. Same behavior as before and consistent across all tuning frequencies and RX gains.
Here is a link to an image of the result (n300_chirp100mhz_halfbbgain_tx35db_vs_tx34p5db.png : https://drive.google.com/open?id=1ccaEVohtXDLh1r-rSNSIHcxdpoQBbkjc). Graph 1: TX gain = 34.5, Graph 2: TX gain = 35, Graph 3: ideal 100 MHz LFM chirp. Regards, Sam On Jan 25, 2019, 3:06 PM -0800, Marcus D. Leech via USRP-users <usrp-users@lists.ettus.com>, wrote: > On 01/25/2019 05:30 PM, Nate Temple via USRP-users wrote: > > Hi Sam, > > > > These are all new issues that we were unaware of. I will follow up with you > > off list to debug these issues through your previously sent email to > > supp...@ettus.com. > > > > > > Regards, > > Nate Temple > > > Also, on the asymmetric spectrum issue, Samuel, you noted that it was fine > about 0.5dB below 35dB gain setting. What happens if you > reduce a baseband magnitude a little bit--does this improve the dynamic > range of the RF gain setting control before the "weirdness" > happens? > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.ettus.com_mailman_listinfo_usrp-2Dusers-5Flists.ettus.com&d=DwICAg&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=opIuWAKmywF059tAs2i3Pg&m=VAd3mjSAxhn0YO_zt6xVvUKaifxo8PYQgP_frYvFB64&s=RiQEyPk8ccdy3g0Oj58T2CAQvc14m4CtK5EM4-cTK8g&e=
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