[USRP-users] uhd and srsLTE do not want to join together :)

2019-01-28 Thread Ralph A. Schmid, dk5ras via USRP-users
Hi, I asked this already in the srslte list, with no success. Uhd built fine and works.And I want to add, the mentioned setup runs in my VM just fine, so maybe some missing prerequisite the is not mentioned in the documents? I updated an old Ubuntu 12.04 setup in steps to 18.04, headless i7 mach

Re: [USRP-users] B210 - how to use second TX/RX frontend?

2018-08-20 Thread Ralph A. Schmid, dk5ras via USRP-users
Hi, this makes no difference, but maybe some stuff by means of software is "strange", I will try on another installation. TNX! Ralph. > -Original Message- > From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of > Ron Economos via USRP-users > Sent: Sunday, August 19,

[USRP-users] B210 - how to use second TX/RX frontend?

2018-08-19 Thread Ralph A. Schmid, dk5ras via USRP-users
Hi, I am using an USRP B210, and it appears somehow it is deaf at higher frequencies, 1.8 GHz and above. Is there a possibility to use the second MIMO frontend single, by some device string? I tried a lot combinations, with no success,. so maybe this even is not possible? Would help me decide if

Re: [USRP-users] B200mini & XU4 problem

2017-09-04 Thread Ralph A. Schmid, dk5ras via USRP-users
In such cases I tend to hard-wire the 5V pin of the USB connector, and the issues usually are gone - when the external power supply is strong enough. The USB port may originally be connected to the internal power distribution of the PCB and cause hick-ups from high power drain... Ralph. > -Or

Re: [USRP-users] Capturing GSM downlink and uplink signal with USRP B210

2017-08-30 Thread Ralph A. Schmid, dk5ras via USRP-users
And to add, the possible bandwidth is even 61.44 MHz with the B210. The attenuation at the band edges gets a bit higher with this mode, and it is not too clearly mentioned in the AD9361 specs, but I am using the B210 with this setting and have no issues with it. This clock appears being a tribut

Re: [USRP-users] 答复: frequency shift of B210

2017-07-26 Thread Ralph A. Schmid, dk5ras via USRP-users
To add my experience, my B210 is off about 1 KHz in the 433 MHz bands. A bit above 2 ppm, probably still covered by the specs, but not the best value for a 6 GHz transceiver :) This was better in the beginning, but I don't know if this came from ageing, or from changes in UHD and FPGA image. It

Re: [USRP-users] Input power limit for B2x0 series

2017-07-12 Thread Ralph A. Schmid, dk5ras via USRP-users
About ESD protection, in my B210 the first switch U807 dies all the time; these need some protection, too :) At the moment I have removed them... Ralph. From: USRP-users [mailto:usrp-users-boun...@lists.ettus.com] On Behalf Of Marcus Müller via USRP-users Sent: Sunday, July 9, 2017 10:56