A follow up to an article I mentioned previously.
It seems like it's a Boeing problem not necessarily an SDR problem.
http://www.defensetech.org/archives/001514.html
For all these reasons, Boeing now has 30 days to come up with a reason why the
Army should not pull the plug on the Jitters contra
[EMAIL PROTECTED] (Ramakrishnan Muthukrishnan) writes:
> There is an article (only for paid readers at the moment) on Prof Moglen's
> speech at linux.conf.au. Here is a quote on SDR situation in Japan.
This came in response to a question from the audience from someone who had
attended the talk I
The punchline is towards the end of this article:
http://rfdesign.com/mag/radio_new_technology_facilitates
TechnoConcepts' RF to digital converter is the first 5 GHz carrier
speed RF to digital converter capable of direct conversion of a 5 GHz
RF carrier, eliminating all analog IF circuits.
I think the chart is misformatted, this seems to make more sense
Parameter GaAsSiGe
Maximum clock frequency > 5 GHz > 15 GHz
SINAD (signal to noise+distortion) > 70 dB > 110 dB
Eff. resolution bits at 2.5 GHz carrier:
Dear gnuradio community,
I have USRP hardware and related software all set up on my Dell laptop
with FC2. My reception of AM/FM stations is still very noisy despite
trying out with various antennas. The last I tried with amplified
antenna (10 db). Still looking for better solution...
I wanted t
On Wed, Apr 27, 2005 at 03:24:15PM -0500, Suvda Myagmar wrote:
> Dear gnuradio community,
>
>
> I wanted to setup my 2nd USRP hardware on ThinkPad A31p with FC3. All
> software packages are set up. But found out that this machine has only
> USB 1 ports; USRP works only with USB 2. Without swith
I've been on the list all of an hour, so I'll comment based on what I've
read but don't take my word for it.
In terms of physical ports a USB hub would solve that issue. However,
there may be a bandwidth issue since you're still only able to receive
the equivalent of a single USB port.
I hope
Wow. Please ignore me completely. I totally misread your question.
That will teach me to respond to e-mail right after a nap.
-Adam
Adam Israel wrote:
I've been on the list all of an hour, so I'll comment based on what
I've read but don't take my word for it.
In terms of physical ports a USB
I have a USRP sort of working on USB 1. I still need to test it some
more to see if it is useful. I'm trying to get it to talk to an
OMAP5912OSK board.
Philip
On Wed, 2005-04-27 at 15:24 -0500, Suvda Myagmar wrote:
> Dear gnuradio community,
>
> I have USRP hardware and related software all set
Hi,
I am installing gnuradio on fedora core3 and am getting some errors with
python, I am able to test the USRP with ./test_usrp_standard_rx and
./test_usrp_standard_rx, but when I try to run ./burn-basic-eeprom I get this
error:
Traceback (most recent call last):
File "./burn-basic-eeprom",
Here is my installation guide for FC3. Not perfect yet, but it might help
you out:
http://www.kd7lmo.net/ground_gnuradio_install.html
On Wed, 27 Apr 2005, Jamie Morken wrote:
> Hi,
>
> I am installing gnuradio on fedora core3 and am getting some errors with
> python, I am able to test the
On Wed, Apr 27, 2005 at 03:41:36PM -0700, Jamie Morken wrote:
> Hi,
>
> I am installing gnuradio on fedora core3 and am getting some errors with
> python, I am able to test the USRP with ./test_usrp_standard_rx and
> ./test_usrp_standard_rx, but when I try to run ./burn-basic-eeprom I get this
On Wed, Apr 27, 2005 at 04:07:50PM -0700, [EMAIL PROTECTED] wrote:
> Here is my installation guide for FC3. Not perfect yet, but it might help
> you out:
>
> http://www.kd7lmo.net/ground_gnuradio_install.html
>
Nice install guide. Thanks.
FYI, we don't require numarray, just Numeric.
Which
I am now seeing something like this one crop up, very annoying.
Basically, I'm running in RX mode for a while. I stop running. I may
unplug usrp, plug it in. Then:
usrp: found usrp rev2
usrp_open_interface:usb_claim_interface: failed interface 2
could not claim interface 2: N
On Wed, Apr 27, 2005 at 09:36:26PM -0400, James Cooley wrote:
> I am now seeing something like this one crop up, very annoying.
>
> Basically, I'm running in RX mode for a while. I stop running. I may
> unplug usrp, plug it in. Then:
When you unplug, are you unplugging from power and/or the usb?
When you unplug, are you unplugging from power and/or the usb?
Hard to say, I believe I have done both. However, I haven't been able to
piece together an exact set of circumstances that lead to this problem.
Sometimes it happens, sometimes not is about the best that I can say for
now. ;) I'
On Wed, Apr 27, 2005 at 11:19:37PM -0400, James Cooley wrote:
>
> How does the USRP know to load its firmware?
Every time you instantiate a usrp source or sink it checks to see if
it needs firmware and/or an fpga bitstream. The library code checks
two MD5 hashes that are stored in the FX2 ram, o
I found the description of the TechnoConcepts patent for the "Direct
conversion delta-sigma receiver" over at the [US Patent & Trademark
Office, Patent Full Text and Image Database],
http://patft.uspto.gov/netahtml/srchnum.htm by entering the patent no
6,748,025 search box, and got the followin
On Thu, 28 Apr 2005 05:54, Suvda Myagmar wrote:
> I wanted to setup my 2nd USRP hardware on ThinkPad A31p with FC3. All
> software packages are set up. But found out that this machine has only
> USB 1 ports; USRP works only with USB 2. Without swithing machines, what
> can I do?
It should _work_ j
Hi,
Matt in a previous thread you were talking about making d/b that let
DC component pass:
> If there is enough interest, I might make such a set of boards. If someone
> else
> is interested in the design, the BasicRX/TX are a great starting point, and I
> can offer guidance.
When i'm inspect
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