Hi All,
I have a question about the usable bandwidth of the X300 USRP / UBX-160
daughterboard combo at sampling rates below 200 Msps:
As I understand it, the UBX-160 receiver has an analog (hardware) filter
before the ADC that limits the usable bandwidth to 160 MHz, while the ADC
runs at 200 Msps
Thank you for your help David.
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Hi Marino, a couple quick thoughts:
1. My previous message was based on legacy USRP architecture - I think with
RFNoC radios, each block may have its own command queue. So the behavior may be
different than mentioned in my earlier reply.
2. I think setting the command time to "lastPPS + s
If you are using TDD, you may need a T/R switch to switch out your receiver
during transmission. If you are using FDD, you may need a diplexer.
Rob
On Mon, Feb 17, 2025 at 11:20 AM Stuart Austin <
saus...@criticalsoftwaresystems.com> wrote:
> Can you just add more attenuation between the output o
Can you just add more attenuation between the output of the circulator port
that goes to the RX port on the N310?
From: john.achkar.r...@gmail.com [mailto:john.achkar.r...@gmail.com]
Sent: Monday, February 17, 2025 10:41 AM
To: usrp-users@lists.ettus.com
Subject: [USRP-users] High power TX/R
Hi,
I am using a N310, with OAI to transmit 5G signal. I want to transmit 40 dBm
using one antenna connected on both TX and RX ports. The best circulator I
found has 18 dB isolation, which isn’t sufficient considering -15 dBm USRP max
input power.
What is the best approach to consider?
Tha
Hi David,
At the start where we initialise our siggen block there this snippet of code:
---
```
std::cout << "MB Clock Source: " <<
graph->get_mb_controller(0)->get_clock_source() << std::endl;
```
```
std::cout << "MB Time Source: " <<
graph->get_mb_controller(0)->get_time_source() << std::e
Any chance you’re using timed commands elsewhere in your application? IIRC,
there is one command FIFO, and a timed command that is waiting to start will
block anything that comes in behind it, even if you didn’t intend for those
other actions to wait. Except for timed streamer transfers, which a
Thanks for your reply.
To answer your last question and give you some context.
The ability to monitor FIFO status would be for debug purpose. The application
we have that is interfacing to a custom RFNOC block via UHD can get are stuck
(randomly over some period of time) and I am trying to fi
Some bullets for you:
- If you do peek32(), then you cannot skip ack, because the ack contains
the read-response (i.e., your peek result).
- For poke, if you don't set ack, then yes, it can still timeout. UHD will
always wait for acks if it thinks the FIFO is full. If it didn't, you would
lose the
Hi Everyone,
I have a few "get()" and "set()" methods in my custom RFNoC block driver.
I'm finding the documentation on using pybind a bit sketchy, and struggling
to get these methods recognized in the python object representing my block.
Is there perhaps an example I can follow somewhere?
Many
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