Re: [Discuss-gnuradio] 30 MHz LPF on LFRX daughterboard?

2009-10-23 Thread Matt Ettus
John Orlando wrote: Hi all, I was just reading the specs/schematic on the LFRX RF daughterboard, and noticed that the literature indicates that there is a 30 MHz low-pass filter after the differential amplifiers. Looking at the schematic, there is a 50 ohm resistor + 20 pF capacitor on each leg

[Discuss-gnuradio] 30 MHz LPF on LFRX daughterboard?

2009-10-23 Thread John Orlando
Hi all, I was just reading the specs/schematic on the LFRX RF daughterboard, and noticed that the literature indicates that there is a 30 MHz low-pass filter after the differential amplifiers. Looking at the schematic, there is a 50 ohm resistor + 20 pF capacitor on each leg of the differential am

Re: [Discuss-gnuradio] About 80211_mac.tar.gz

2009-10-23 Thread Chen Chen
Hi Thierry, There are three version of bbn code: the original, the douglias version and usrp2 version. These three versions all have these two script. So which version is right for the simple_mac.py I have modified the simple_mac.py in the original bbn code and it works for the usrp. But it seems

[Discuss-gnuradio] How to generate a FM signal?

2009-10-23 Thread nansai hu
Is anybody had a experiment about How to generate a FM signal? or tell me how to use FM MOD or VCO module in GRC, what is the paramater sensitive means? Thanks ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listin

Re: [Discuss-gnuradio] About 80211_mac.tar.gz

2009-10-23 Thread Chen Chen
Hi, Thierry I noticed that in this directory, simple_mac.py need the script of bbn802_11b.py and bbn802_11b_pkt.py, but these two script are not in this directory. Are these two script from the USRP2 version of bbn code from cgran? Thanks, Chen On Wed, Oct 21, 2009 at 4:50 PM, wrote: > Hi Ch

Re: [Discuss-gnuradio] Question about Fail to set RF frequency in certain range using Basic TX

2009-10-23 Thread Matt Ettus
Not at this time, but soon. Matt George Lee wrote: Thank you, Matt. Is there any other way to transmit in the frequency range of 70M - 84M Hz? George On Tue, Oct 20, 2009 at 6:31 PM, Matt Ettus > wrote: George Lee wrote: When I tried to set the center f

Re: [Discuss-gnuradio] problem running bbn802.11

2009-10-23 Thread Douglas Geiger
It looks like you have the version of the bbn code that was not converted over to the hier_block2 API (which is required in GNURadio 3.2.x). Where did you get your copy from? On Thu, Oct 22, 2009 at 6:13 PM, Alaelddin Fuad Yousif Mohammed wrote: > Hi All > I am tried to run bbn802.11 , but I face

Re: [Discuss-gnuradio] Feeding 12VDC through COAX using DBSRX

2009-10-23 Thread Patrik Tast
Hi Matt, Many thanks for your clarification. Thanks, Patrik - Original Message - From: "Matt Ettus" To: "Patrik Tast" Cc: Sent: Friday, October 23, 2009 8:56 Subject: Re: [Discuss-gnuradio] Feeding 12VDC through COAX using DBSRX Patrik Tast wrote: Hi All, At the moment I feed

Re: [Discuss-gnuradio] Question about the FFT

2009-10-23 Thread Kóczián Gergely
Hello! Thanks for the help. Now the frequency is correct. But the amplitudo is wrong. I messauring in the real life a triangle signal and it's not similar. Attached picture: http://img7.imageshack.us/img7/8049/messung9.png The second peak have to be: