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 with three paths:
> > - 800 MHz-2.2 GHz
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 with three paths:
- 800 MHz-2.2 GHz
- passthrough (no filter)
- lowpass 400 MHz..800 MHz
Next to that, there is also a way t
Hi Mark-Jan,
let me quickly reply in-text:
> - Is this LO filter automatically selected, and where should I look for the
rules ?
yes, and: uhd/host/lib/usrp/dboard/db_ubx.cpp; look for the set_{tx,rx}_freq
methods.
- Is there some way to control this LO filter selection via UHD, similar to
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
Hello,
I have the N320 configured with the gpsdo.
I’m SSHed into the N320 and running directly on the N320.
I set clock_source & time_source to gpsdo in /etc/uhd/mpm.conf
/usr/lib/uhd/examples/sync_to_gps
Runs successfully:
Waiting for reference lock...LOCKED
GPS Locked
USRP time: 16
On 26/01/2023 07:47, Mike wrote:
Thanks, Marcus for the info link. I’ve reviewed that information and
understand how RF0 is A:0 and RF1 is B:0 for the N320. I’ve reviewed
the utility benchmark_rate.py to see how the arguments are used to
change the channel. I guess what I’m missing is how
Thanks, Marcus for the info link. I’ve reviewed that information and
understand how RF0 is A:0 and RF1 is B:0 for the N320. I’ve reviewed the
utility benchmark_rate.py to see how the arguments are used to change the
channel. I guess what I’m missing is how GRC initializes the USRP. The pytho
Thank you very much! I appreciate it.
Best regards,
David
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Hi David,
you are trying to receive two signals which stand 400 MHz apart from each
other. If you want to take two signals, which stand 400 MHz apart from each
other, at the same time, then you need to have at least 400 MHz
instantaneous bandwidth. But USRP 2901 has only 56 MHz. Therefore; you
cann
I am trying to simultaneously receive two signals from Galileo at different
frequencies (1176.45 MHz and 1575.42 MHz) using a single antenna, a USRP 2901,
and the GNU Radio Companion (GRC) software. I would like to know if it is
possible to do this with a single USRP, that is, is the USRP able t
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