Hi all!
I have build a docker tool-chain for an image with GNU Radio and UHD
installed via PyBOMBS on top of Ubuntu. It's even possible to run it
dockerized with a GUI using VNC and it should work as well on windows
and mac (so far, not tested). The build files are available on github
and the prec
What solutions are people using for transmitting on HF bands (1 - 30 MHz)?
There is a lot of information online about upconverters for receiving
the HF bands.
However, like receivers, many of the SDR transmitters only seem to cover
bands above 30MHz[1] e.g.
HackRF: 30MHz - ...
bladeRF : 3
Active loop >> LFRX>> N210 >> LFTX >> 20W PA >> SG-230 tuner >> inverted L.
Pics here:
https://www.qrz.com/lookup
I don't have any GR code for a full transceiver, more experimental, either
always RX or TX. I believe John Petrich has been working on a full
transceiver in GRC.
Lou
KD4HSO
Dani
There's a transverter for the bladeRF.
https://www.nuand.com/blog/product/hf-vhf-transverter/
hackRF specification has been changed to 1 MHz to 6 GHz.
https://greatscottgadgets.com/hackrf/
Ron
On 04/06/2016 07:02 AM, Daniel Pocock wrote:
What solutions are people using for transmitting on H
When I see discussions on cognitive radio I always ask: What are your
plans for preventing interference to passive users of the radio spectrum
that you won't know about if your only method of determining spectrum
use is detecting transmissions?
Passive users of spectrum, like radio astronomy
Hi Biswas,
> If there are a number of ways, then please describe the best possible
> way solve this problem."
First of all, what you're describing is barely cognitive; you want to
look at the momentaneous power in a subchannel, and transmit only when
it's free. That principle is simply known as Car
The functions to control output buffer size are not available to pure Python
blocks. I think that's because these functions are missing from
block_gateway.h. Is this an oversight or intentional?
Eugene Grayver, Ph.D.
Aerospace Corp., Sr. Eng. Spec.
Tel: 310.336.1274
Yes, that is true, but, as I said on my first post, I'm exploring those
examples, but I still can't understand what am I supposed to use on the
parameter "Formatter Object". I understood more or less what the block does,
but I can't configure it because I don't understand what I should/could wri
Hi, thanks for your answeri wasn't able to answer earlier.
I was aiming to a 8MHz clock rate in order to use the DDC and get a 16000
sample rate.
So i think i was misunderstood.
Thank you very much
Gabriel
2016-03-31 13:25 GMT-05:00 Martin Braun :
> On the release 4 image, you can't set the cl
Good Evening,
Is it possible to start and stop a filter within a flowgraph?
I have a complex data file which is 300 seconds in length and I only want
to filter a few seconds in the middle of the file. Is it possible to
trigger a filter on and off based on time or some other data trigger?
Than
On Apr 6, 2016, at 19:06, Philip Hahn wrote:
> Is it possible to start and stop a filter within a flowgraph?
>
> I have a complex data file which is 300 seconds in length and I only want to
> filter a few seconds in the middle of the file. Is it possible to trigger a
> filter on and off base
On Apr 6, 2016, at 20:14, Philip Hahn wrote:
> Related question: I'm having trouble notch negative frequencies. I understand
> it needs to be a complex->complex with complex taps but most of the filter
> blocks don't seem to support this. In my case a band reject filter is what
> I'm looking f
What is the purpose of this file? There is zero documentation in this file, is
it ever being used?
I am looking for a sin/cos table for speed optimization, is there one inside
gnuradio?
Thanks.___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.or
Ah, sorry for not hitting reply-all. Yeah, I tried firdes and figured I was
missing something as is usually the case. Thanks again,
philip
On Wed, Apr 6, 2016 at 8:24 PM, Kevin Reid wrote:
> On Apr 6, 2016, at 20:14, Philip Hahn wrote:
>
> > Related question: I'm having trouble notch negative
$ ag sine_table.h
gnuradio-runtime/lib/math/fxpt.cc
32:#include "sine_table.h"
=> Yes, it's used. And you can use it too, if you like.
M
On 04/06/2016 08:26 PM, Trek Liu wrote:
> What is the purpose of this file? There is zero documentation in this
> file, is it ever being used?
> I am loo
On the release 4 image, you can't do that. But you can set the clock to
16 MHz and use a decimation of 1000. Or you can use a clock rate of
16384e3 and a decimation of 1024, for a better decimation filter response.
Cheers,
Martin
On 04/06/2016 06:11 PM, Gabriel Pechiarovich wrote:
> Hi, thanks fo
On 04/06/2016 04:02 PM, Miguel Santos wrote:
> Yes, that is true, but, as I said on my first post, I'm exploring those
> examples, but I still can't understand what am I supposed to use on the
> parameter "Formatter Object". I understood more or less what the block does,
> but I can't configure
On 04/06/2016 01:40 PM, Eugene Grayver wrote:
> The functions to control output buffer size are not available to pure
> Python blocks. I think that's because these functions are missing from
> block_gateway.h. Is this an oversight or intentional?
Most likely an oversight, as they were added much
On 04/06/2016 10:26 PM, Martin Braun wrote:
> On the release 4 image, you can't do that. But you can set the clock to
> 16 MHz and use a decimation of 1000. Or you can use a clock rate of
> 16384e3 and a decimation of 1024, for a better decimation filter response.
...they'll probably be about the
Hi all,
I'm trying to solve Rx overflow problem.
I am using USRP N210 and CBX daughter board. As I know, my machine's
maximum sample rate is up to 25 MSps. Yes, it works well at Tx (ex
./benchmark -f 2.5G -r 2500).
However, when I use USRP to Rx mode (ex ./benchmark -f 2.5G -r 2500),
lett
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