Re: [USRP-users] interpretation of received signal

2017-10-18 Thread Neel Pandeya via USRP-users
Also note that at 0 dBm, you're at the maximum safe input power, so your received signal might be saturated. --Neel Pandeya On Oct 17, 2017 22:30, "Marcus D. Leech via USRP-users" < usrp-users@lists.ettus.com> wrote: On 10/18/2017 12:08 AM, Nirmala Soundararajan via USRP-users wrote: > Hi all,

[USRP-users] USRP Sequence error

2017-10-18 Thread Meysam Goodarzi via USRP-users
Hi, I am using USRP X310, I want to transmit data from file in repeat mode. The command that I type in linux terminal is: ./tx_samples_from_file --file tx_0.25_2_rep3_v2.bin --args="addr=192.468.10.2" --ant TX/RX --delay 0.1 --rate 20e6 --freq 5.75e9 --gain 25 --repeat But as result, i receive a

Re: [USRP-users] interpretation of received signal

2017-10-18 Thread Nirmala Soundararajan via USRP-users
Hi Marcus, I made a simple model using Matlab Simulink and used spectrum analyser block to observe the transmitted and received waveform. Since 0 dbm was the maximum input power, I just calculated (input volatge)^2 / 2. It comes to 0.045V. I specified block parameters and gave different values.

Re: [USRP-users] interpretation of received signal

2017-10-18 Thread Marcus D. Leech via USRP-users
0dBm is the maximum power that is recommended to prevent damage to the hardware. But the actual response of the entire signal processing chain, including variable-gain elements, the ADCs, and such, cannot simply be "modeled" in such a simple manner. In order to map the digital-domain results bac

Re: [USRP-users] interpretation of received signal

2017-10-18 Thread Nirmala Soundararajan via USRP-users
Yeah got it! But don't you think the tool has those capabilities to consider the entire chain and then display the output? Since I don't have actual spectrum analyzer in the lab I am forced to use the software spectrum analyzer. The initial phase is to first confirm that the transmit and receive

Re: [USRP-users] UBX-160 with X310 communication issue

2017-10-18 Thread Mark Koenig via USRP-users
Nate, I upgraded to UHD 003.009.007, and it worked in CentOS7.2. I can now probe the daughtercard and get a return. Thank you so much! Mark From: Nate Temple Date: Tuesday, October 17, 2017 at 5:19 PM To: Mark Koenig Cc: "usrp-users@lists.ettus.com" Subject: Re: [USRP-users] UBX-160 with X