Hi,
On page 7 of the UBX-160 schematics
https://files.ettus.com/schematics/ubx/UBX-160_revE.pdf
there is a LO filter selection with three paths:
- 800 MHz-2.2 GHz
- passthrough (no filter)
- lowpass 400 MHz..800 MHz
Next to that, there is also a way to measure the LO on J3.
Question:
- Is this L
On Thu, Jan 26, 2023 at 05:14:34PM -0500, Marcus D. Leech wrote:
> On 26/01/2023 16:33, Mark-Jan Bastian wrote:
> > Hi,
> >
> > On page 7 of the UBX-160 schematics
> > https://files.ettus.com/schematics/ubx/UBX-160_revE.pdf
> > there is a LO filter selection wi
On Fri, Jan 27, 2023 at 02:37:08PM -0500, Marcus D. Leech wrote:
> On 27/01/2023 00:50, Mark-Jan Bastian wrote:
> >
> > When generating a complex +74 MHz and -73 MHz sinewave signal and adding
> > them,
> > I see 1 MHz spur about -30 dB @ -74 MHz, irrespective of
Thanks Marcus!
Mark-Jan
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Hi Dave,
You could try a shorter USB 3.0 cable, they can be as short as .2 meters.
If running from a laptop, run the laptop from battery, reduces a radiating
power cord and DC/DC charger/switch mode powersupplies from your setup.
Use a second laptop with/or dedicated spectrum analyser and RF prob
Hi Paul,
I can record from the X310 to disk to nvme x4 PCIe at 800 MB/sec
for a few minutes. There is still a risk of O 's appearing.
First thing to check is the number of PCIe lanes available to the disk
controller and disks, and how many and which PCIe bridges are in between
on your motherboar
?s
> the only viable alternative to pursue given the present hardware
> configuration?
>
> Joe
>
> > On Mar 9, 2019, at 5:14 AM, Mark-Jan Bastian via USRP-users
> > wrote:
> >
> > Hi Paul,
> >
> > I can record from the X310 to disk to nvme x4 PCIe a
ny
> others cryogenic detectors and for the testing of different and possibly more
> effective data acquisition schemes.
>
>
>
> Lorenzo
>
> ________
> From: USRP-users on behalf of Joe Martin
> via USRP-users
> Sent: Saturday, March
On Tue, Mar 12, 2019 at 09:10:02AM +0100, Mark-Jan Bastian wrote:
> In the past there have been videocards that host a 16x16x16 PCIe bridge (ie.
> IDT,
> or broadcom) to accomodate two 16-lane PCIe GPUs, each with their own
> GDDR5 memory.
Note that there is also Microsemi (a micro
Hi Mathhias,
On Thu, May 02, 2019 at 02:18:38PM +0200, Matthias Br??ndli via USRP-users
wrote:
> On some systems, we observe sporadic underruns. They occur in irregular
> intervals, something like once a minute, sometimes rarer. Seen with both
> USB2 and USB3 hosts, over several UHD versions. Unt
On Mon, May 06, 2019 at 09:36:34AM +0200, Matthias Br??ndli wrote:
> > Pure theory: What if this intermittent issue would be an issue with a
> > certain sequence of packetlengths, some of them on the boundary of the
> > maximum size for that endpoint and endpointtype, that are not handled
> > pr
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