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Having trouble transmitting/receiving a BPSK signal using two USRPs

I am relatively new to working with SDRs and GNURadio and I am attempting to generate a BPSK signal and transmit it through one USRP and receive and demodulate it on another USRP. I am using GNURadio ...
Eric Gaulke's user avatar
1 vote
0 answers
28 views

USRP N210 B & F Lights

During setup of a USRP N210 on MATLAB's Communications Toolbox Support Package for USRP Radio, the initial test failed on "Receive the signal and verify the frequency of the tone" field. ...
Austin Seward's user avatar
1 vote
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270 views

GNURadio 3.8 QPSK : Hard time to recover the right symbols/data

Cheers, I am demodulating a QPSK signal on GNURadio, the data transmitted is a known HEX file with the "1ACFFC1D" foreword every 124 bytes, to check if the demodulation is a success, it ...
Ed_Sheherazade's user avatar
1 vote
0 answers
4k views

USRP + GNU Radio as 1 GHz bandwidth spectrum analyzer

I have maybe not trivial but some interesting question. I need to create 802.11ac channels spectrum analyzer with USRP. Hardware: USRP B210 Software: GNU Radio 3.7.9 PC: Intel Core i3 i3210m 16 GB ...
user34533's user avatar
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0 answers
27 views

GNU Radio can't find my USRPB205

I connected my USRPB205mini-i and tried running the following flowchart but I keep getting, RuntimeError: LookupError: KeyError: No devices found for ----- Empty Device Address Here's the rest <...
Bryan Busby's user avatar
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0 answers
27 views

TRANSMIT 16QAM 5MHz Signal Via NI USRP 2900

I am trying to generate 5MHz signal. I am using NI USRP with matlab. I have extended the existing MATLAB QPSK Tx Rx to 16QAM, Now i am struggling with advacing the testbed to send and receive 5MHz ...
Muhammad Danyal Khattak's user avatar
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0 answers
74 views

USRP X310 not receiving anything but noise

I have been trying to receive different types of signals using a USRP X310 but all I can receive is noise. I tried different types of antennas and designed many different kinds of blocks but I get ...
Ahsan Yousaf's user avatar
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USRP N210 Connection Issues on Ubuntu 22.04 VirtualBox VM

I am running into consistent connection issues when trying to run a USRP N210 on a VirtualBox Ubuntu 22.04 VM. I built uhd from source on the ettus page, configured a static IP address in Ubuntu, ...
Austin Seward's user avatar
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0 answers
38 views

FMCW RADAR using Phased Array Antenna

I need assistance to calculate angle of arrival using MUSIC algorithm for Phased Antenna Array with GNU radio and USRP #Zeeshan
Navkaran Ghumman's user avatar
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0 answers
76 views

OFDM does not work with USRP

I found the ofdm flowchart in the Gnu radio examples.(ofdm_loopback) Scheme: The spectrum and the received data of the received signal: After that, I connect the USRP Sink and the USRP Source. The ...
Ice Cool's user avatar
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55 views

Is there any way to fix USRP that doesn't connect?

I am new to SDR. But I have an USRP X310. Installed UHD and GNU Radio from source on Ubuntu 20.04. Connected to the USRP with SFP+ through the port 1 and powered the USRP. But the LED of the ethernet ...
Azamat Nassipkaliyev's user avatar
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119 views

How do I set GNU Radio Es/No?

I am trying to create a random signal in GNU Radio (using DVB-S2 specs for the physical layer) and transmit this signal using a USRP X310. This is shown below: Problem: I would like to be able to ...
Matthew Hilts's user avatar
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0 answers
184 views

GNU Radio and USRP audio source problem

I have a modem which accepts a voice in GNU Radio, digitizes and compresses it (codec2) and transmits it using USRP on one laptop and receives it on another laptop. When I use "Wave File Source&...
Ali's user avatar
  • 95
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505 views

Finding time of arrival of signal using GNU radio

I am sending a repeating BPSK modulated PN sequence signal from a USRP x310 transmitter. I am receiving the sequence with another USRP x310. Both are attached to an octoclock. Is there a way to get ...
Caleb Martin's user avatar
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4k views

16 QAM GNU Radio

I have been trying to implement a transmitter receiver flow graph which uses 16 QAM. I am using a USRP B200 as the transmitter and a RTL-SDR as the receiver. I used uhd_packet_tx.grc and ...
vperekadan's user avatar
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0 answers
2k views

Not sure why I get errors of missing blocks when trying examples in Gnuradio Companion

I just started working with GNURadio without much of familiarity about this software. I found a couple examples online and I tried to run them but I get many Missing Block errors. Thats how it looks ...
Hadad's user avatar
  • 101
-1 votes
1 answer
224 views

Unstable frequency/phase when using external reference for Ettus B200

I am attempting to do a simple record of a CW, 250MHz signal at the Rx port of an Ettus B200 using an Anritsu MG369 signal generator. I am using the 10 MHz ref signal provided by the SG (output @ ~...
not_fogarty's user avatar
-1 votes
2 answers
3k views

GNU Radio QPSK 4 Symbols

I'd like to generate a simple QPSK signal in GNU radio, but so far I haven't been able to get it to perform the way I'd like and I'm not sure if this has to do with some misunderstanding I have about ...
Zman147's user avatar