BTW, what does that guy mean "Not sure when you updated, but we have changed
the checked in code to default to 2437, and run it like this (as a NetBSD
rc.d start script)", following the above link?
It means there is somewhere checked in a script that fits into the
NetBSD rc.d framework so th
BTW, what does that guy mean "Not sure when you updated, but we have changed
the checked in code to default to 2437, and run it like this (as a NetBSD
rc.d start script)", following the above link?
details if you care, but surely they have little to do with your issues.
http://www.netbsd.
Hi,
I am trying to see data from usrp_siggen.py,
but it seems like plot is mixture of I and Q, and not clear as using
usrp_oscope.py
Could you tell me how to see clear one channel waveform using Matlab?
Thank you.
James,
___
Discuss-gnuradio mailing lis
I am facing another problem in (fsk_tx.py, fsk_rx.py) , At receive end it do
not always write the received data to file. Although it always receive
signal which I can see from fft window and received 'seqno' are also printed
on command prompt but when I check the received file I find it empty.
W
James Park wrote:
Hi,
I am trying to see data from usrp_siggen.py,
but it seems like plot is mixture of I and Q, and not clear as using
usrp_oscope.py
Could you tell me how to see clear one channel waveform using Matlab?
Thank you.
James,
Here, I made you a quick GNU Radio + Octave gu
Hello,
I'm new to the GNURadio experience, so I'm just trying to get some of the
basic tests to work. I've installed Ubuntu 6.01, and for the GNU Radio
installation I used the binary packets -
http://gnuradio.org/trac/wiki/UbuntuInstall -.
First of all, I've run the dial_tone.py example, and
If someone has ever measured Quality of service of received data (using any
modulation and daughter board but preferably RFX2400) in terms of packet
loss rate/Bit Error Rate (or any other metric) with USRP & GNU Radio without
any error correction (ARQ,FEC) mechanism (but no problem if you have wit
I'm not sure of the frequency so I tried
./bbn_80211b_rx.py -f 2.462G -d 8 -b -v
Bits Per Encoded Sample = 8
adc frequency = 6400
decimation frequency = 8
input_rate = 800
gain = 45.0
desired freq = 246200.0
baseband frequency 246000.0
dxc frequency -200.0
Samples per da
kaleem ahmad wrote:
If someone has ever measured Quality of service of received data (using any
modulation and daughter board but preferably RFX2400) in terms of packet
loss rate/Bit Error Rate (or any other metric) with USRP & GNU Radio without
any error correction (ARQ,FEC) mechanism (but no
I am using RFX2400 daughter boards,
VERT2450 antenna which I received with my USRP from ettus,
I have tried different bitrates from 40kbps - 100kbps but got same results,
I am not observing any overrun or underrun,
I am working in office environment where I dont have any interference
(almost),
Gai
On Fri, Jul 25, 2008 at 07:46:58AM -0400, Greg Troxel wrote:
> BTW, what does that guy mean "Not sure when you updated, but we have changed
> the checked in code to default to 2437, and run it like this (as a NetBSD
> rc.d start script)", following the above link?
>
> details if you care, bu
On Fri, Jul 25, 2008 at 09:45:55AM -0700, kaleem ahmad wrote:
>
> I am using RFX2400 daughter boards,
> VERT2450 antenna which I received with my USRP from ettus,
> I have tried different bitrates from 40kbps - 100kbps but got same results,
> I am not observing any overrun or underrun,
> I am work
On Fri, Jul 25, 2008 at 10:11:34AM -0700, Y. Zhuang wrote:
> http://en.wikipedia.org/wiki/List_of_WLAN_channels
>
> Is it because the channel for 802.11 in 2.432G there, so the front end
> was tuned to 2.432G? But there is 2.437G as well.
> Or the font end is just picking the strongest channel it
Hi,
Can anybody tell me how to save transmit data from benchmark_ofdm_tx.py
using file_sink?
I added
self.file_sink = gr.file_sink(gr.sizeof_gr_complex,"filename.dat") and
self.connect(self.txpath, self.file_sink)
but using matlab, it does not look right.
Thank you.
James,
_
>Actually without and error correction mechanism, with FSK, I am getting almost
>half of my data lost.
A 50% BER can be a sign that your bits aren't making it through it
all. I would guess you have some issues other than just needing error
correction. I would check to make sure that there is no
On Fri, Jul 25, 2008 at 04:09:13PM -0400, James Park wrote:
> Hi,
>
> Can anybody tell me how to save transmit data from benchmark_ofdm_tx.py
> using file_sink?
> I added
> self.file_sink = gr.file_sink(gr.sizeof_gr_complex,"filename.dat") and
> self.connect(self.txpath, self.file_sink)
> but us
Hi,
I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that
there is no residual carrier. yet, the waveform I send seems to keep
flipping from positive to negative polarity. Is it possible that there is
residual carrier that is not being reported correctly?
Thanks in advance.
Is
Hi,
I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that
there is no residual carrier. yet, the waveform I send seems to keep
flipping from positive to negative polarity. Is it possible that there is
residual carrier that is not being reported correctly?
Thanks in advance.
Is
On Fri, Jul 25, 2008 at 02:12:38PM -0700, isaacgerg wrote:
>
> Hi,
> I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that
> there is no residual carrier. yet, the waveform I send seems to keep
> flipping from positive to negative polarity. Is it possible that there is
> residu
The one used on USRPs shipping now is 20 ppm with this part number --
EC2620ETTS-64.000M
From Ecliptek. They are pin compatible.
Matt
Carles Fernandez wrote:
By the way, could someone tell me what is the part number of the
VCTCXO shipped with USRP Rev 4.5? In the bill of materials of the
On Thu, Jul 24, 2008 at 4:37 PM, Johnathan Corgan <
[EMAIL PROTECTED]> wrote:
> On Thu, Jul 24, 2008 at 12:30 PM, Nikhil <[EMAIL PROTECTED]> wrote:
>
> > Are you trying to measure the impulse response of the channel? If so,
> then
> > one technique would be to transmit a known pseudo-random bit
On Fri, Jul 25, 2008 at 6:12 PM, Nikhil <[EMAIL PROTECTED]> wrote:
> I'm curious -- in a channel sounder application what benefit, if any is
> there to performing the cross-correlation on the FPGA? This is assuming
> you are continuously transmitting the PRBS and computing the impulse
> response
Hi,
I read the George's page and used for looking data from usrp_siggen.py and
usrp_oscope.py.
This case, amplitude looks reasonable, but wavelenth, usrp-oscope.py is
twice longer in plot.
and also, I look at the data from brenchmark_ofdm_tx.py and usrp_oscope.py.
this case, amplitude is so differ
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