Re: [Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

and 289/0 sometimes. What might be the reason? On Sat, Aug 4, 2012 at 1:53 PM, Josh Blum wrote: > > > On 08/03/2012 03:45 PM, Weixian Zhou wrote: > > I run benchmark_tx in USRP A, and benchmark_rx in USRP B: > > A: ./benchmark_tx.py -f 2.46G -r 0.5M --tx-gain=-30 > > B

[Discuss-gnuradio] benchmark test between two USRPs have different performances in two directions

. What might be the reasons? I am using USRP N210 and XCVR2450. -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] carrier_sensed() doesn't work in tunnel.py with USRP N210 and XCVR2450

, it should print 'B' and doesn't send when machine A is sending. In reality, machine B lost a lot of messages from A, which are supposed to be received with carrier_sensed(). -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list D

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

>>>> > for IGMP protocol. >>>> > >>>> > Welcome any comments! >>>> > >>>> >>>> I recall a similar discussion, and one simple solution was to use a >>>> different frequency for each communication

[Discuss-gnuradio] Is the --size option in tunnel.py useless?

I found the size is not used anywhere in tunnel.py source file. Does it useless? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] tunnel.py doesn't receive packages when transmit and receive frequencies are different

kages when transmit and receive frequencies are different under 2.5GHz? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] tunnel.py doesn't work on expected frequency

anyone has idea? On Tue, Jun 19, 2012 at 5:30 PM, Weixian Zhou wrote: > I am using two USRP N210s (daughter boards are XCVR2450) and the supported > frequency in theory ranged in 2.4GHz ~ 2.5GHz. I have done experiment to > test the working freq using benchmark_tx/benchmark_rx, the wor

[Discuss-gnuradio] Does each antenna of USRP N210 can both transmit and receive?

I am using USRP N210 and the daughter boards are XCVR2450. Does each antenna can both transmit and receive, or one antenna can only transmit and another can only receive? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio

[Discuss-gnuradio] tunnel.py doesn't work on expected frequency

. But when I tested tunnel.py, the working freq is only 2.50 G and 2.51G. Why doesn't tunnel.py work on the same frequencies as benchmark_tx/benchmark_rx? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] tunnel.py destination host unreachable

an set fixed_delay as 0.01 to 0.1 and test the result. > > And also, please set the CSMA threshold carefully to avoid > possible collision. > > Alex > > On Mon, Jun 18, 2012 at 10:10 AM, Weixian Zhou wrote: > >> The following is the messages of the transmitter after I

[Discuss-gnuradio] tunnel.py sends packages of incorrect size

using two USRP N210s, the daughter boards are both XCVR2450. -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] tunnel.py destination host unreachable

y received packages from machine A but A failed to receive replied packages from machine B. It confused me that the packages tx/rx were succeed before the ping. Anyone has idea? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnurad

[Discuss-gnuradio] what's the actual freq. when input freq. is wrong

frequency: 300.000 MHz* *Actual frequency: 4500.000 MHz* Clearly the 4500MHz is not the real TX frequency. What is that? -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listin

[Discuss-gnuradio] benchmark_rx kept showing 000000...

ssse3_32* * OO * I am using the two USRP N210, the daughter boards are both XCVR2450. Ubuntu 12.04, latest version of UHD and GNU Radio. -- Regards, Weixian Zhou ___ Discuss-gnuradi

[Discuss-gnuradio] benchmark_rx n_right always 0

no = 75 n_rcvd = 10 **n_right =0* *ok = False pktno = 76 n_rcvd = 11 **n_right =0* *ok = False pktno = 189 n_rcvd = 12 **n_right =0* -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.

[Discuss-gnuradio] what's the actual freq range of XCVR2450?

freq range are either 2.4 - 2.5 or 4.9 - 5.9. -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Questions about benchmark_tx/benchmark_rx

alse pktno = 64 n_rcvd = 10 n_right =0 I am using two USRP N210. -- Regards, Weixian Zhou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio