[Discuss-gnuradio] grc file for transmitter and receiver

2013-03-11 Thread Mohammed Ramadan
i want to send and receive via the two ports i have in my USRPN210 using XCVR2450 daughter board (half duplex). the ports are RF1, RF2. so if i made in same grc file the transmitter and receiver i don't know which port transmit and which receive. any one advise me to manage transmitting receivin

[Discuss-gnuradio] SRIF workshop paper deadline extension

2013-03-11 Thread Tom Rondeau
Hi everyone, I hope people have been thinking about joining us in Hong Kong in August for the Software Radio Implementation Forum (SRIF) workshop. If you were thinking about producing a paper but haven't had time, I wanted to let everyone know that we have decided to extend the deadlines: Abstrac

Re: [Discuss-gnuradio] LibUSRP vs LibUHD Performance on older machines

2013-03-11 Thread Marcus D. Leech
On 03/11/2013 02:00 AM, Tom Hendrick wrote: Hello Josh, Thanks for responding. I just tried your suggestion. With a single USRP channel at 4MS/s and writing to four files at 500 MS/s (each of these 4 files is writing the same thing), I occasionally still see some overruns though it takes a lot

[Discuss-gnuradio] modulation packet loss

2013-03-11 Thread Patrick Cunniff
Hi, When doing any type of modulation, I'm losing the last packet or two. I'm wondering if it's possible to either get rid of packetization all together or to output the piece of the last packet received even though it doesn't get filled completely. Inside of packet.py, it seems to be stuck in her

Re: [Discuss-gnuradio] LibUSRP vs LibUHD Performance on older machines

2013-03-11 Thread Tom Hendrick
I'm sorry for the typo,  yes after the USRP source block there is a complex to float followed by a rational resampler for each of the four channels so it decimates and records to file at 500 kS/s Thanks for catching that.   -Tom From: Marcus D. Leech To: To

[Discuss-gnuradio] Reg:Tags_demo.cc example

2013-03-11 Thread john jade
Hi, 1. What is get_full_seconds and get_frac_seconds printing? 2.Can we get upto precision of nano seconds using the above methods and please tell me how to do it. In the frac seconds i am getting 0.xx(only 6 digits after point-micro seconds) Thanks __