Re: [Discuss-gnuradio] [USRP-users] about the tunnel.py

2012-07-13 Thread CHAO DONG
andwidth of the RF (about 40MHz for SBX). > But even I set the |RX - TX| > 40MHz, the flow control at each side is > needed, i.e, the messages can not be transmitted with too short interval, > otherwise, it can not receive the reply in time It is very strange. > > On Fri, Jul

Re: [Discuss-gnuradio] [USRP-users] about the tunnel.py

2012-07-12 Thread CHAO DONG
explain this,? 在 2012-7-12 下午4:57,"Josh Blum" 写道: > > > On 07/11/2012 08:57 PM, CHAO DONG wrote: > > Dear all, > > > >I am testing tunnel.py in the narrowband folder, the > > configuration is as follows: > > OS: ubuntu 11.10 > >

[Discuss-gnuradio] about the tunnel.py

2012-07-11 Thread CHAO DONG
protocol. Welcome any comments! -- Chao Dong Department of Computer Science and Technology, Nanjing University Nanjing, Jiangsu, 210093 China PR. Institute of Communication Engineering Nanjing, Jiangsu, 210007 China PR. ___ Discuss-gnuradio mailing

Re: [Discuss-gnuradio] USRP1 Simultaneous Receive and Transmit

2010-05-26 Thread Chao Dong
Hi Matt, Is there any example in current Gnuradio release that implementing full deplex with one USRP motherboard and two daughterboards? As i understand, i must call source_c twice to use the two daughterboards, but this seems impossible. Then how can i use the two daughterboards in one flowgra

Re: [Discuss-gnuradio] Synchronize frequency with packet sending

2009-09-27 Thread Chao Dong
I think perhaps a time synchronization process between the sender and receiver is needed. - Original Message - From: "CNS Lee" To: Sent: Sunday, September 27, 2009 8:25 PM Subject: [Discuss-gnuradio] Synchronize frequency with packet sending Hi everyone, I got a problem in my projec