7) is in KiCad 4.
The LNA datasheet bandwidth is 100 MHz to 1500 MHz, and the
downconverter datasheet band coverage is 925 MHz to 2175 MHz.
- Larry
Cinaed -
On Wed, Dec 28, 2022 at 06:31:17PM -0800, Cinaed Simson wrote:
> Hi Larry - try
> apt install libsndfile1-dev
Yes, I confirm that is the solution. Thanks!
Although it's more practical to
apt-get install --no-install-recommends libsndfile1-dev
to keep xtrx-dkms out o
sndfile.
My closest hit was /usr/lib/x86_64-linux-gnu/cmake/gnuradio/FindSNDFILE.cmake
which I don't really understand. I tried hacking on it anyway, but never
found a change that fixed my problem.
Any hints or ideas? Am I stuck installing gnuradio from source?
Should I file a Debian bug report?
- Larry
Hello everyone,
I am having an issue with achieving a phase-synchronous RF configuration using
an N310 with an Octoclock and a linear antenna array. What I believe should be
the expected results of this setup is that each AD9371 should receive
synchronous signals aligned in phase, with a random
out for in the coding? Or are there
any alternative in creating a frequency to voltage converter. Greatly
appreciative if any advise can be provided. Thank you.
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Hello:
Running examples from:
http://www.trondeau.com/examples/2014/1/23/pfb-channelizers-and-synthesizers.html
https://static.squarespace.com/static/543ae9afe4b0c3b808d72acd/543aee1fe4b09162d08633d9/543aee20e4b09162d086354d/1395272342027/fm_channelizer.grc
With the the following changes:
1)
or pointers are welcomed.
LVDJ
On Tue, Mar 17, 2015 at 10:30 AM, Larry Van Der Jagt
wrote:
> Hello:
>
> Can anyone point me to some "color" on how to work with the Audio Source.
> I am working examples to transmit FM Audio and have problems with Underruns
> on t
at your audio *hardware* is capable of
> delivering the desired rates.
>
>
>
>
> On 2015-03-17 10:30, Larry Van Der Jagt via USRP-users wrote:
>
> Hello:
>
> Can anyone point me to some "color" on how to work with the Audio Source.
> I am working exa
Hello:
Can anyone point me to some "color" on how to work with the Audio Source.
I am working examples to transmit FM Audio and have problems with Underruns
on the UHD:USRP Sink.
The examples (from files.ettus.com/tutorials/Lab_5.grc and others) I am
running select Audio Source Arch:alsa and this
Hello:
Working with the Dizzy build of E310 and trying to get GUI items to run
that have no QWT in them to run.
Starting with uhd_fft.grc (gnuradio-companion run with LD_PRELOADS
documented previously) with all blocks disable except QTGUI Frequency Sink.
This now runs until it hits
self.setting
nning on my embedded x86_64 target. Need to find time to
> make more progress on the project soon!
>
> -Chris
>
> On Fri, Feb 27, 2015 at 12:11 PM, Tom Rondeau wrote:
> > Sorry that I have no insight into this right now, but I wanted to follow
> up
> > and see if
insight into this right now, but I wanted to follow
> up and see if there was any progress made on this problem?
>
> Tom
>
>
> On Mon, Feb 9, 2015 at 11:28 AM, Larry Van Der Jagt
> wrote:
>
>> Thanks:
>>
>> The info Chris sent along has helped to move th
Thanks for the input.
So given that the QT GUI Frequency Sync Block seems to have no entry in the
Properties GUI to set BusPort Connections, how would one go about doing
that. It seems to default to a minimum bus width of #2 for number of
inputs 1 or 0 and number of inputs +1 for higher numbers.
27;ve found the
generic Busports stuff already ...
Thanks again,
LVDJ
On Mon, Feb 9, 2015 at 8:30 AM, Tom Rondeau wrote:
> On Sun, Feb 8, 2015 at 2:50 PM, Larry Van Der Jagt
> wrote:
>
>> Hello:
>>
>> In trying to execute the flowgraphs found in the blo
t get graphical elements
to work even in the produced Python code and that seriously reduces the
utility of the embedded device.
All comments and direction are appreciated.
LVDJ
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QT
frequency sink block. I have been looking for information regarding the
best way to fix these as there does not seem to be a link to the
Bus_connection vector in the block. I am working with GnuRadio 3.7.6.1
under Ubuntu 12.04 LTS
Any insight or leads are welcomed.
--
Larry Van Der Jagt
b/pyhon2.7/site-packages/PyQt4/Qt.py, line 3, in from
pyQt4.QTDeclarativeImport *
ImportError : /usr/lib/python2.7/site-packages/PyQt4/QtDEclarative.so:
undefined symbol: _ZTI16QTDeclarativeView
Any insights are always welcomed.
--
Larry Van Der Jagt
one trace.
And I am not sure as to what value I should set the sample rate.
Can someone tell me what to do?
Thanks,
- Larry
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_input ('Press Enter to stop: ')
app.stop()
if __name__ == '__main__':
main ()
# ----
Take care,
- Larry
At 03:40 PM 1/26/2009, Eric Blossom wrote:
On Sun, Jan 25, 2009 at 11:34:34PM -0800, Larry Wagner
ments in the multi_scope.py script are
more complicated. They are:
def main ():
app = stdgui2.stdapp(my_top_block, "Multi Scope", nstatus=1)
app.MainLoop()
if __name__ == '__main__':
main ()
How can I run the scope app with a keypress and possibly an inpu
ume(2) # Pump up the volume (by factor 2)TypeError: unbound method set_volume() must be called with my_top_block instance as first argument (got int instance instead)Thanks for your help in advance, - Larry Wagner
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Python-src-2.8.1.1/wxWidgets-2.8.0 I
have tried it in /usr/local as well with the same results. Any help would be
greatly appreciated. thanks Larry
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lete automake1.4. It's the Debian way. ;-)
- Larry
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bian.
I'm not sure, the only 32-bit clutter my Sid x86_64 machine has
picked up is in /emul/ia32-linux/usr/lib. I already filed bug
reports complaining about it.
- Larry
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t;$host_os" = "Linux" -a "$host_cpu" = "x86_64"; then
> +# XXX Debian may not use this convention.
In the spirit of autoconf, shouldn't this check behavior,
instead of enumerating systems?
if test -d ${libdir}64; then ...
- Larry
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Guys -
On Sun, Dec 18, 2005 at 04:14:56PM -0800, Larry Doolittle wrote:
> I think Debian went this way for a while, but for the moment
> the 32-bit mode is relegated to "emulation" status: 64-bit
> libraries go in $prefix/lib, and 32-bit libraries go in
> $prefix/emu/ia32
ies go in
$prefix/emu/ia32-linux/usr/lib. YMMV, I gather this is a
hot-button issue on the "right" mailing lists. I, personally,
consider the existence any 32-bit binaries on an x86_64 machine
to be a bug.
- Larry
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the one I kept with a band-pass filter. Works
great, with excellent linearity.
YMMV, especially depending on your choice of DAC.
- Larry
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you build
your own customized executable from the libraries.
I suggest we take this discussion off-list, and maybe collaborate
on a web page summarizing the process.
- Larry
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On Tue, Sep 13, 2005 at 09:47:45AM -0700, Larry Doolittle wrote:
>
> This category of problems including Linux kernel headers is not new.
> Several are tracked as Debian bugs to the linux-kernel-headers
> package, [chop]
> Our particular problem might be AMD64 specific, as report
On Tue, Sep 13, 2005 at 09:47:45AM -0700, Larry Doolittle wrote:
> In Debian's case, /usr/include/linux/* comes not from the kernel,
> but from the linux-kernel-headers package. [chop]
>
> Ask yourself, why did the libusb decide to make and use their
> own version of this inc
On Mon, Sep 12, 2005 at 08:33:09PM -0700, Eric Blossom wrote:
> On Thu, Sep 08, 2005 at 11:04:33AM -0700, Larry Doolittle wrote:
> > The libusb folks maintain a libusb/linux.h that parallels
> > the kernel-space linux/usbdevice_fs.h, but is designed to
> > be used by user-
"It works for me"
--- /home/ldoolitt/cvs/usrp/host/apps/test_usrp_standard_rx.cc 2005-09-08
08:34:57.0 -0700
+++ test_usrp_standard_rx.cc2005-09-09 09:23:35.0 -0700
@@ -38,7 +38,7 @@
char *prog_name;
-static bool test_input (usrp_standard_rx *urx, bool forever_p, FILE *
On Thu, Sep 08, 2005 at 11:04:33AM -0700, Larry Doolittle wrote:
>
> I have my code compiling, but it required major surgery.
> I haven't tested its operation yet, but I'm optimistic.
I can confirm this approach works. I haven't given it
exhaustive tests, but in the 6
1 lines.
Complete patch appended. Comments?
- Larry
--- /home/ldoolitt/cvs/usrp/host/lib/fusb_linux.cc 2005-09-08
08:34:57.0 -0700
+++ fusb_linux.cc 2005-09-08 10:57:50.0 -0700
@@ -24,11 +24,20 @@
#include "config.h"
#endif
+#define usbdevfs_
g the problem now, but would appreciate any hints
from people who have already seen this. It works fine in debian
sarge.
Note that because the faults are so low-level, triggered simply by
#include
the autoconf scripts fall back to fusb_generic.
- Larry
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ot sure how you'd make the measurement.
If you're willing to design/write/debug/test Verilog, there's nothing
stopping you from changing gain from the FPGA. I have done something
equivalent on an XC2S200 (sending live data out to a DAC using an SPI
bus. It's a non-tri
ga-guru.com/cordic.htm
- Larry
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ookup to the PHY; I hope eventually to do so,
in part by stealing chunks from the aforementioned Opencores project.
- Larry
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d want to try
> with the USRP "directly" hooked to the antenna.
If you notched out a couple of the biggest interfering signals, you
might be able to get away with it. "Processing gain" is real, and
can work better than most people expect. Radio astronomers use it
al
ent error could
approach a micro-Hertz, if your reference oscillator were perfect.
> I was hoping that with the USRP I'd be able to measure all four bands
> simulateously.
That's the best approach.
- Larry
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you'll have to research the details.
- Larry
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ror source other than errors
> in the external reference?
Not in the long term. Any acquisition hardware adds phase noise,
but that mostly averages away for the measurement you want to make.
> This sounds like fun. Any ideas/suggestions would be greatly app
one else interested in
JTAG hooks?
Is there a reason half the .v files in CVS fpga/sdr_lib are marked
executable?
Would anyone else use an FX2 WaveData compiler if I polished it up?
- Larry
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r followed by a sigma-delta converter, in
particular the case where the same frequency is used for the mixer LO
and the sigma-delta modulator clock.
- Larry
[*] but then, what do I know. I'm an engineer, so I must not count
as someone "skilled in the art".
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on debian sarge/sid, perl v5.8.4.
Tiny tarball attached. Comments appreciated.
- Larry
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htt
guess that will count as "dancing".
- Larry
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On Tue, Apr 05, 2005 at 02:18:19PM -0700, Eric Blossom wrote:
> On Tue, Apr 05, 2005 at 12:03:00PM -0700, Larry Doolittle wrote:
> >
> > I have an Avnet Virtex 4 evaluation board, intended for
> > projects similar in concept to GNU Radio. It uses the
> > same CY7C680
b 5-1: usbfs: interface 0 claimed while
'lt-usrper' sets config #1
2005-04-05 11:35:07.626327500 <4>usb 5-1: usbfs: interface 0 claimed while
'lt-usrper' sets config #1
Anybody have a clue they can share with me?
- Larry
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