Re: [USRP-users] Using X310/UBX Tx/Rx antenna for single channel pulsed radar

2017-10-10 Thread Rob Kossler via USRP-users
Thanks again. Two more clarifications... - When you say each "radio" has a separate queue, does that translate into each "channel" has a separate queue? Assuming so, then I suppose a streaming command that is for multiple channels will create an entry in each of the queues. - If

Re: [USRP-users] Using X310/UBX Tx/Rx antenna for single channel pulsed radar

2017-10-10 Thread Michael West via USRP-users
Hi Rob, Yes. The queue is a simple FIFO and does no reordering, so the commands must be in time order. Each radio has a separate command queue, so they will not interfere with each other. All commands go to the same queue, whether timed or not, so care must be taken with all commands issued to

Re: [USRP-users] Using X310/UBX Tx/Rx antenna for single channel pulsed radar

2017-10-10 Thread Rob Kossler via USRP-users
Thanks Michael, So, do all "timed" commands sent to the command queue need to be in strictly ascending order (in time)? In other words, will a disordered queue always produce a Late error or does it depend on how much disordered? Are there any other "timed" commands to worry about besides the

Re: [USRP-users] Using X310/UBX Tx/Rx antenna for single channel pulsed radar

2017-10-10 Thread Michael West via USRP-users
Hi Rob, Yes, that would be a problem. There is a single command queue for both TX and RX commands to the radio, so something has to collate the T/R switching commands with the RX streaming command so none of the commands arrive late. Regards, Michael On Thu, Oct 5, 2017 at 7:48 AM, Rob Kossler

Re: [USRP-users] ADC Self-Test FAILED

2017-10-10 Thread Michael West via USRP-users
Hi Mark, Update UHD to a newer version. The head of the maint branch or the latest 3.10.2.0 release should work. The ADC self test is skipped when supplying "recover_mb_eeprom" as of UHD 3.10.0.0. Regards, Michael On Tue, Oct 10, 2017 at 12:32 PM, Mark Koenig via USRP-users <

Re: [USRP-users] ADC Self-Test FAILED

2017-10-10 Thread Mark Koenig via USRP-users
Just following up on the message I sent out 8 days ago. Does anyone have any resolution to this issue? I have seen other people have the problem, but have yet to find a fix. Thanks Mark From: Mark Koenig Date: Monday, October 2, 2017 at 10:18 AM To:

Re: [USRP-users] destroy rx_stream in E310

2017-10-10 Thread olivani via USRP-users
Hi , It would be great if any one could address this issue I need to toggle between channels and collect data , by recreating the rx_streamer I am getting an assertion error. I tried using rx_streamer.reset() but that didn't seem to destroy the previous stream Error: AssertionError:

[USRP-users] Buffer overflow tips

2017-10-10 Thread Андрій Хома via USRP-users
Hello, I apologize for my terrible English, I have a problem with buffer overflow. Tell me, please, what optimization measures do you use when working? How the problem is observed: I have 6 b205mini devices, and I noticed that I was up to a maximum of 205MHz per second. ie, either 5 devices on 41

Re: [USRP-users] 10 MHz reference signal on B210

2017-10-10 Thread Dario Fertonani via USRP-users
The key issues was "square wave". Once that waveform is used, as opposed to a sine wave, everything works as expected in a wider range of Vpp values. Thanks, Dario On Tue, Oct 3, 2017 at 11:05 AM, Dario Fertonani wrote: > I'd like to assume that *OctoClock-G*'s 10