[Discuss-gnuradio] USRP1 + FLEX900 -> receive "transmitted" message

[Chun-Ta Kung]

Dear all,

I am using bbn 802.11 simple mac code, and I encountered a problem. 

The packets which to be sent are read by the code  of "os.read(tun_fd,10*1024).

Just in the second round of transmission, usrp will receive the packet which is sent in the last round of transmission. 

For testing, I removed the antenna and it was still the same. 

Could anyone here give any idea??

Thank you all, sincerely.