[USRP-users] Re: rfnoc radio transmit control

2021-06-30 Thread rblack
Mark, I concur with the “modulation” approach. In this case the waveform is not pre-computed, so this will need to be done with an OOT RFNoc block. thanks, rb ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to u

[USRP-users] Re: rfnoc radio transmit control

2021-06-30 Thread Marcus D. Leech
On 06/29/2021 11:09 AM, rbl...@swri.org wrote: X310. Doesn’t a time command only set the transmit /streaming time for a single time event (as opposed to an infinite series)? If so, then how would you stuff a *very* fast series of commands in to the command queue? The command queue is onl

[USRP-users] Re: rfnoc radio transmit control

2021-06-29 Thread rblack
X310. Doesn’t a time command only set the transmit /streaming time for a single time event (as opposed to an infinite series)? If so, then how would you stuff a \*very\* fast series of commands in to the command queue? ___ USRP-users mailing list --

[USRP-users] Re: rfnoc radio transmit control

2021-06-29 Thread Neel Pandeya
You can use timed commands to start and stop streaming at specific clock cycles. It sounds like that's all you'd need to do. Which specific radio are you using? --Neel Pandeya On Tue, 29 Jun 2021 at 09:48, Marcus D. Leech wrote: > On 06/29/2021 10:34 AM, rbl...@swri.org wrote: > > 20 MSamp/

[USRP-users] Re: rfnoc radio transmit control

2021-06-29 Thread Marcus D. Leech
On 06/29/2021 10:34 AM, rbl...@swri.org wrote: 20 MSamp/sec. So if we, say, gate the signal on/off 10 microsec on/10 microsec off, then we’d have 200 samples on, 200 samples off. thx rb ___ USRP-users mailing list -- usrp-users@lists.ettus.com T

[USRP-users] Re: rfnoc radio transmit control

2021-06-29 Thread Marcus D. Leech
On 06/29/2021 10:34 AM, rbl...@swri.org wrote: 20 MSamp/sec. So if we, say, gate the signal on/off 10 microsec on/10 microsec off, then we’d have 200 samples on, 200 samples off. thx rb Right so you could do that in software by multiplying the actual signal by a 0/1 pattern that is as man

[USRP-users] Re: rfnoc radio transmit control

2021-06-29 Thread rblack
20 MSamp/sec. So if we, say, gate the signal on/off 10 microsec on/10 microsec off, then we’d have 200 samples on, 200 samples off. thx rb ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists

[USRP-users] Re: rfnoc radio transmit control

2021-06-28 Thread Marcus D Leech
What bandwidth/sample rate? Sent from my iPhone > On Jun 28, 2021, at 6:27 PM, rbl...@swri.org wrote: > >  > More like sending radar pulses, than OOK. And working through the host > software interface will be too slow for this. > > It may indeed require a custom block. > > > > thanks rb >

[USRP-users] Re: rfnoc radio transmit control

2021-06-28 Thread rblack
More like sending radar pulses, than OOK. And working through the host software interface will be too slow for this. It may indeed require a custom block. thanks rb ___ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an

[USRP-users] Re: rfnoc radio transmit control

2021-06-28 Thread Marcus D. Leech
On 06/28/2021 01:56 PM, rbl...@swri.org wrote: Hi and thanks. The reference was a good read, but I don’t think it quite covers my application. It describes how to send commands to the Radio Block to initiate transmission at a specific precise time. But I need to repeatedly gate the transmit s

[USRP-users] Re: rfnoc radio transmit control

2021-06-28 Thread rblack
Hi and thanks. The reference was a good read, but I don’t think it quite covers my application. It describes how to send commands to the Radio Block to initiate transmission at a specific precise time. But I need to repeatedly gate the transmit signal on/off very rapidly (microsec), and it

[USRP-users] Re: rfnoc radio transmit control

2021-06-24 Thread Marcus D. Leech
On 06/24/2021 09:01 AM, rbl...@swri.org wrote: Can someone suggest a straightforward way to turn the radio block transmit on/off at precise times? (“Off” could just mean changing transmit output level to “0’, provided it could be done at exact times) ___