Hi all,
I have an interest in radioastronomy. I plan to make simple beamforming
phase array (primary with 4 and later with 8 antennas) with USRP (later
with 2) and GNU Radio. I am inspired by LOFAR radiotelescope.
Now I collect all available information about using GNU Radio and USRP
for it.
Hi,
I wrote a USRP based RF Repeater code
http://www.nabble.com/file/p15199195/repeater.py.tar.gz repeater.py.tar.gz
before may be 8 months which is connecting source->Destination in IF level.
Although the input parameters should be entered by hand and not from the
command line, the code was wo
OK thanks Eric. I should have mentioned I was using Ubuntu 7.10. My
application was effectively just passing the samples from the USRP Rx to
the USRP Tx via the PC, no actual demod/remod going on.
I'll try your suggestions regarding fusb buffering parameters and see if
that makes a difference.
On Thu, Jan 31, 2008 at 01:50:32PM +1300, Richard Clarke wrote:
> Hi All,
>
> summary: If I try and receive and transmit data from and to the USRP
> simultaneously at the same data rate (no matter what it is, even as low as
> 2MB/s each way) I always get usrp underruns.
Which operating system an
I hope no one minds me putting this up here:
Path Intelligence Ltd is a multiple award winning start-up company,
whose most recent achievement is winning the UK SEEDA Enterprise Hub
Showcase event, ahead of more than fifty other innovative start-ups from
Oxford and the broader South East regi
DiX wrote:
> Hi everyone,
>
> I am using FLEX2400 d'boards to transmit and receive 802.11b packets
> with codes from bbn and gnuradio_example/python/digital. The problem is the
> d'board is always interferenced by some CISCO access points and other
> wireless cards located right outside of my
Carles Fernandez wrote:
> Hi everybody,
>
> I discovered GNU Radio few months ago, in a before-go-to-bed surfing. I
> found it very interesting, but complicated because of my poor skills in
> programming Python or C++. I'm doing research on Global Navigation Satellite
> Systems (GNSS) receivers, a
Hi All,
summary: If I try and receive and transmit data from and to the USRP
simultaneously at the same data rate (no matter what it is, even as low
as 2MB/s each way) I always get usrp underruns.
Background
*
I have a simple cross band repeater type example running under Gnuradio
3.
Hi everybody,
I discovered GNU Radio few months ago, in a before-go-to-bed surfing. I
found it very interesting, but complicated because of my poor skills in
programming Python or C++. I'm doing research on Global Navigation Satellite
Systems (GNSS) receivers, and I'm used to code everything in Ma
On 1/30/08, Dev Ramudit <[EMAIL PROTECTED]> wrote:
> Not sure if you've had a chance to take a look at this yet. I've been
> trying to figure out what's going on, but even with Martin's advice I
> still havent had much luck. Could you tell me what the slip rate is on
> the sliding correlator? When
Thanks Brian,
That clears up a lot in my head.
My Verilog knowledge is pretty primitive at this point.
Tomas O'Maille
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Should Rx1 be a vector_source_f rather than a vector_sink_f?
-Steven
On Jan 29, 2008 10:17 PM, Jonas <[EMAIL PROTECTED]> wrote:
> Hi everyone!
>
> I have this problem with using gr_float_to_complex. I wanted to connect two
> sptr types wherein one contains floats while the other is an sptr type o
On Wed, Jan 30, 2008 at 06:35:07AM -0800, TomasOMaille wrote:
>
> Hello,
>
> I have been trying to understand the tx and rx data paths through the AD9862
> and the FPGA (standard configuration).
>
Hi Tomas,
Take a look here
http://www.gnuradio.org/trac/wiki/UsrpRfxDiagrams
and ask again if
On Jan 30, 2008 9:35 AM, TomasOMaille <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> I have been trying to understand the tx and rx data paths through the AD9862
> and the FPGA (standard configuration).
>
> RX side:
>
> - The two ADCs of the AD9862 push data onto two 12 bit buses
>
> - After the FPGA
Hello,
I have been trying to understand the tx and rx data paths through the AD9862
and the FPGA (standard configuration).
RX side:
- The two ADCs of the AD9862 push data onto two 12 bit buses
- After the FPGA MUX the 16 bit I/Q signals pass into the assigned DDC
- Are four extra bits assi
Hi all,
I have been using gnuradio to receive the data from the front end hardware. I
have made a file sink to see the data. And the data pattern seems to lose a
byte , and this occurs every 1024 bytes. I think the software reads 16KB of
data but the error comes ever 1KB. I am using a SSRP mod
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