[USRP-users] Re: [X310] set_command_time introduces unexpected delay dependent on sampling rate.

On 26/03/2025 12:09, Rob Kossler wrote: Hi Marcus, I think that the gain is set from the "radio" block which operates at the master clock rate rather than the downconverted rate.  It doesn't make sense to me why the latency of the gain setting would be related to the downconverted sample ra

[USRP-users] Re: [X310] set_command_time introduces unexpected delay dependent on sampling rate.

On Wed, Mar 26, 2025 at 10:43 AM Marcus D. Leech wrote: > On 26/03/2025 06:13, je.amg...@gmail.com wrote: > > > > I'm using timed commands to set the RX gain at a precise moment with > > the following command: > > > > set_command_time(md.time_spec + uhd::time_spec_t(0.02), 0); > > > > However, I

[USRP-users] Re: [X310] set_command_time introduces unexpected delay dependent on sampling rate.

On Wed, Mar 26, 2025 at 12:32 PM Marcus D. Leech wrote: > On 26/03/2025 12:09, Rob Kossler wrote: > > > > > Hi Marcus, > I think that the gain is set from the "radio" block which operates at the > master clock rate rather than the downconverted rate. It doesn't make > sense to me why the latency

[USRP-users] Re: [X310] set_command_time introduces unexpected delay dependent on sampling rate.

On 26/03/2025 06:13, je.amg...@gmail.com wrote: I'm using timed commands to set the RX gain at a precise moment with the following command: set_command_time(md.time_spec + uhd::time_spec_t(0.02), 0); However, I noticed that there is a delay between the specified time and the actual time whe

[USRP-users] Re: 100Gb NIC for X410

Thanks Michael, Thanks for all of the information. Regarding your final paragraph, you mentioned that the 64 Gb/s could be handled on one 100 Gb link. However, that seems at odds with the following statement in the UHD manual in the X410 section about FPGA types

[USRP-users] Re: 100Gb NIC for X410

Hey Rob! Great questions. Here's way too much information taken from internal notes I have on the subject, to help you process all of this :) {{{ E810 QCDA2 provides 100 Gb aggregate between both ports. Dual port to USRP is not recommended since UHD doesn't "know" this limitation. E810 2QCAD2 prov

[USRP-users] [X310] set_command_time introduces unexpected delay dependent on sampling rate.

I'm using timed commands to set the RX gain at a precise moment with the following command: set_command_time(md.time_spec + uhd::time_spec_t(0.02), 0); However, I noticed that there is a delay between the specified time and the actual time when the gain is applied. This delay is significantly l