[Discuss-gnuradio] DB EEPROM location 0x20

2011-02-20 Thread Brett L. Trotter
The card I'm looking at (an LFRX variant) has the proper checksum in 0x1F (0x17), but then byte 0x20 has 0x04 with the remaining data 0xFF I previously thought I understood 0x20 began the region where we could do what we wanted, but I'm now not so sure. If I was going to store some custom data, wh

Re: [Discuss-gnuradio] FTW IEEE802.11a/g/p OFDM Frame Encoder

2011-02-20 Thread Manav Seth
I have tried this and I was able to receive frames using an Atheros NIC in monitor mode.Specifically the card was a AR5413 Atheros card. Did you check that the receiver NIC is on the same channel as the transmitter? The script given on the FTW page is using channel 1. Thanks, Manav On Sun, Feb 2

Re: [Discuss-gnuradio] FTW IEEE802.11a/g/p OFDM Frame Encoder

2011-02-20 Thread Ashutosh Grewal
Hi Guanbo, Thanks for your reply. I've some good news regarding the FTW OFDM encoder - we were able to decode 802.11 a/g packets using kismet/wireshark later in the day. It seems that we'll have to set the OFDM coderegime option as 6 or 7 or 8 (I'm not sure about 8 but 6 definitely worked). The v

Re: [Discuss-gnuradio] FTW IEEE802.11a/g/p OFDM Frame Encoder

2011-02-20 Thread Guanbo ZHENG
Regarding to BBN, you may try to the high interpolation and decimation rate, as well as proper gain. I was able to decode it on RX (Ubuntu 9.10+gnuradio 3.2.2) For FTW OFDM code, I was able to decode the 802.11g packet as well at Wireshark using an Atheros 802.11a/b/g NIC in monitor mode, where I

Re: [Discuss-gnuradio] BBN802.11b USRP2s XCVR2450 trouble in packet reception.

2011-02-20 Thread Josh Blum
This may explain your observations: http://old.nabble.com/OFDM-receiver-on-USRP2-tc27557644.html On 02/20/2011 01:34 PM, Sankalp Nimbhorkar wrote: > We have been trying to make two USRP2s with XCVR2450 daughter-cards talk, > one a transmitter and the other a receiver less than 2 metres LOS apart.

Re: [Discuss-gnuradio] SSH-friendly build options?

2011-02-20 Thread Josh Blum
For the wx-gui sinks, try http://gnuradio.org/redmine/wiki/gnuradio/CompGrWxgui#Enable-the-GL-Sinks and set style=nongl -josh On 02/20/2011 01:51 PM, dave wrote: > My USRP is in a "lab" hooked to a pc, but I like to ssh -Y into it from > more pleasant parts of the house using my netbook. It wor

[Discuss-gnuradio] Any E100/Beagleboard users running into realtime scheduling issues?

2011-02-20 Thread Almohanad Fayez
Out of curiosity are there any USRP E100 users running into problems enabling realtime scheduling? On my beagleboard I am not able to use realtime scheduling since upgrading to the latest kernel and Angstrom. Apparently there is an issue with realtime scheduling being done on per group bas

[Discuss-gnuradio] SSH-friendly build options?

2011-02-20 Thread dave
My USRP is in a "lab" hooked to a pc, but I like to ssh -Y into it from more pleasant parts of the house using my netbook. It worked great for gnuradio and most other applications until I installed NVIDIA drivers on the lab PC in order to enable cuda GPU processing. (Cuda made my processing appli

[Discuss-gnuradio] BBN802.11b USRP2s XCVR2450 trouble in packet reception.

2011-02-20 Thread Sankalp Nimbhorkar
We have been trying to make two USRP2s with XCVR2450 daughter-cards talk, one a transmitter and the other a receiver less than 2 metres LOS apart. With a WiSpy dongle, we confirmed that the transmitter is, indeed, transmitting. But at the receiver side, we cannot receive any of the frames sent out

[Discuss-gnuradio] FTW IEEE802.11a/g/p OFDM Frame Encoder

2011-02-20 Thread Sankalp Nimbhorkar
Dear All, We tried using this encoder to transmit frames with USRP2 XCVR 2450 daughter-card on Ubuntu 9.10. We confirmed transmission with a WiSpy dongle. But we cannot receive the frames on a receiver. The receiver we are using is an Atheros 802.11 a/b/g NIC in monitor mode with Mad WiF

Re: [Discuss-gnuradio] channel coding questions

2011-02-20 Thread Ben Reynwar
Cheers. I'm planning on having a go at some sub-optimal algorithms in the next week or two. Ben On Sun, Feb 20, 2011 at 1:46 PM, Achilleas Anastasopoulos wrote: > Ben, > > I have found some time and implemented two versions of > a turbo (sccc) decoder block in the gr-trellis project. > I have ad

Re: [Discuss-gnuradio] channel coding questions

2011-02-20 Thread Achilleas Anastasopoulos
Ben, I have found some time and implemented two versions of a turbo (sccc) decoder block in the gr-trellis project. I have added a couple of example python scripts as well. I have also refactored all "core algorithms" (such as Viterbi, SISO, turbo, etc) into a separate file and used C++ templates

Re: [Discuss-gnuradio] FUNCube dongle

2011-02-20 Thread Patrik Tast
Oh yeah! That will be the way to do it Thanks, Patrik - Original Message - From: "Alexandru Csete" To: "Patrik Tast" Cc: ; "Jerry Martes" Sent: Sunday, February 20, 2011 12:13 Subject: Re: [Discuss-gnuradio] FUNCube dongle On Sun, Feb 20, 2011 at 10:50 AM, Patrik Tast wrote: Hi

Re: [Discuss-gnuradio] FUNCube dongle

2011-02-20 Thread Patrik Tast
Hi Alexandu, Oh yes, by plugging it into an audio source it will work as is with GR. We wonder how to rip the I and Q's and pass them further to GR for (de)modulation We need to study the dongle and its ICs more Thanks, Patrik - Original Message - From: "Alexandru Csete" To: "Pat

Re: [Discuss-gnuradio] FUNCube dongle

2011-02-20 Thread Patrik Tast
>It might more tricky to actually get one! >They sell out in less than a minute. Yeah, we've neen luring on them for some time and seen the batches end QUICKLY Thanks all for the GR hints, we'll try if we get one Patrik - Original Message - From: Jeff Kelly To: Patrik Tast Sen

Re: [Discuss-gnuradio] FUNCube dongle

2011-02-20 Thread Patrik Tast
Thanks, We'll see if we'll get one and make an attempt Patrik - Original Message - From: Johnathan Corgan To: Alexandru Csete Cc: Discuss-gnuradio@gnu.org Sent: Saturday, February 19, 2011 19:08 Subject: Re: [Discuss-gnuradio] FUNCube dongle On Sat, Feb 19, 2011 at 08:

[Discuss-gnuradio] is anybody using pappradio?

2011-02-20 Thread Michael Renner
Moin, I just saw the pappradio. A I/Q mixer from an Ecuador mission station. It only cost 65 €. It work with winrad and/or dream. and the sound card. Will it work with GnuRadio? 73 -- |Michael Renner E-mail: michael.ren...@gmx.de | |D-81541 Munich GermanyICQ: #112280325 | |G