Hello,
I am installing GNURadio code from the trunk using git on a laptop
running Ubuntu 8.04 and have some build problems.
I follow the instruction for installing the code given in the wiki.
i.e installing the required software using sudo apt-get, installing
boost_1_37.
Then I do ./boot
Hi all,
I am trying to create a two transmitter setup with two USRP2s connected
with the MIMO cable. I use the trunk version of GNURadio (Friday, Jan
29,2010) on laptops running Ubuntu 9.04.
>From previous emails and looking at the code, the relevant code for two
transmitter setup seems to be
Hi everyone,
I am interested in knowing the delay jitter of the total
transmission time of a packet/waveform. Specifically, I want to know the
time between the time the flowgraph is tsarted in python (tb.run or
tb.start) and the time that the first sample is transmitted into the a
Hi all,
I am working with Flex2400 boards and the USRP. I have a question
about the digital module (GMSK data transfer). I observe this: When
I send 660 packets , I receive less than 400 of them and less than
200 are correct.
I setup two PCs with ubuntu and with an USRP each. The antennas wer
PGP SIGNED MESSAGE-
> Hash: SHA1
>
> sri ram wrote:
> > P.S. I am attaching the output of the rx side.
>
> uOok = True pktno = 47 n_rcvd = 48 n_right = 48
> ok = True pktno = 48 n_rcvd = 49 n_right = 49
> ok = True pktno = 49 n_rcvd = 50 n_r
Hello Dan,
Using a higher decimation rate (128) , that problem does not
arise.
Thanks,
Sriram
On Dec 24, 2007 3:16 PM, sri ram <[EMAIL PROTECTED]> wrote:
> Hello Dan,
> I see that the u0 occurs once every 3 entries which could
> explain the ra
Hello all,
I am trying to use the USRP to capture 802.11 packets and
have a few questions.
Looking at the archives, I understand that I can receive 1 Mbps
probe/beacon packets with code developed by BBN. I use their code and
see packets at 1 Mbps from different nodes.
However, I don't k
Sorry.
The subject of my previous mail ought to have been 802.11 on USRP.
Sriram
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Thanks for the quick reply. Please see inline responses.
>
>
> Date: Fri, 06 Jun 2008 12:19:56 -0400
> From: Greg Troxel <[EMAIL PROTECTED]>
> Subject: Re: [Discuss-gnuradio] 802.11 on USRP+GNURadio
> To: "sri ram" <[EMAIL PROTECTED]>
> Cc: dis
Hello all,
I am trying to understand the BBN code for 802.11b. I must state
upfront that I am not an expert in communication systems.
802.11b uses dBPSK and dQPSK modulations for its 1Mbps and 2Mbps rates. I
explored how a dBPSK module looks like and I am able to make sense of the
code in g
Hi,
I am trying to send a stream of bits using On Off keying and am having
some issues.
At this stage, I just want to check if 1's and 0's are getting received with
a high and low amplitude respectively. I have modified dbpsk.py setting the
constellation to 0+0i and 1+0i in psk.py and invoke t
Thanks for all the discussions. It has definitely given me clarity into
what is happening. .
I understand that the DC component of the transmitted signal, along with the
frequency offset causes a strong tone at the receiver. I have linked two
plots of the real part of the received baseband samples
Hi all,
I am trying to perform On Off Keying and I figured out that the way
actual chips (TI-Chipcon 1000) do it is by turning on and off the power
amplifier.
I found out that when I just modify the transmit constellation and use
benchmark_tx.py the received power does not go down to 0 when
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