I am only a couple days into this, with a project that has several heir
blocks.
I just started getting a message "port number 0 exceeds max of (none)"
I've looked through my files, and I don't see any unconnected ports.
I don't see anything that indicates even which file or heir block is
causing
message, but it’s something like
> what you reported , hence my wondering. We should really get this fixed in
> some forthcoming GR release. Hope this is useful! - MLD
>
> On Sat, Jan 19, 2019, at 11:43 PM, david vanhorn wrote:
>
> I am only a couple days into this, with a project that
Error message "destination port 0 out of range for QSD Summing Amplifier(7)"
This heir has a pad source with four float streams and a pad sink with one
complex stream.
Everything is float, and everything is connected.
I assume the error above is talking about the pad sink.
ID pad_sink_0
Label
I've created some heir blocks, and now I have some that I'd like to remove
from my list as they are obsolete.
How do I remove them?
--
K1FZY (WA4TPW) SK 9/29/37-4/13/15
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scripts? Look in
> "~/.grc_gnuradio/" and find the correct .py and .xml or .yml files & "rm"
> them. Not sure what else you might mean, so hopefully this helps! - MLD
>
> On Mon, Jan 21, 2019, at 3:14 PM, david vanhorn wrote:
>
> I've created some heir blocks
The docs say that I need to set Scale to the inverse of the Length.
Ok, I interpret that as Length = 4000 and Scale = 1/4000
The docs here:
https://www.gnuradio.org/doc/doxygen/classgr_1_1blocks_1_1moving__average__ff.html
says that Scale is a float.
The discussion here clearly shows Scale
So how would you represent this expression so that it evaluates as floating
point:
As the "Delay" variable in a delay block: Phase * (SampleRate/360)
On Tue, Jan 22, 2019 at 5:59 AM david vanhorn wrote:
> Nope.
>
> 1/Averaging evaluates to zero.
> 1/Averaging.
I have seen a lot of links and tried a lot of downloads. My hw works but
sofar osmocom does not see the device. I assume that means I have not found
the real driver I need. Does anyone have this working on Windows, and can
I get a pointer to the working driver?
on
>
> 1/4000.
> 1/5.
>
> -- Cinaed
>
>
> On 1/21/19 4:41 PM, david vanhorn wrote:
> > The docs say that I need to set Scale to the inverse of the Length.
> > Ok, I interpret that as Length = 4000 and Scale = 1/4000
> > The do
It would be very helpful to know the main frequency of interest.
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You can lead a horse to water...
Then there's hams like this: https://g3rbj.co.uk/
On Wed, Nov 4, 2020 at 12:04 PM Kristoff wrote:
> Don,
>
>
> A small (slightly) remark about this video, and about hams.
>
> When I gave my first video-presentation for the Belgian SDR Meetup (in
> September),
"Twice the bandwidth" but that doesn't account for the 0 Hz "hole" where
the incoming signal is exactly at the sampling rate.
Or am I missing something?
On Wed, Nov 4, 2020 at 3:28 PM Fons Adriaensen wrote:
> On Wed, Nov 04, 2020 at 05:14:00PM +0100, Kristoff wrote:
>
> > For us, "even if we
I've done a little with Gnuradio a couple years ago, but I'd now like to
apply it to a serious problem.
I have a design I'm working on that will output raw data that could be
interpreted as an audio stream centered on 1kHz. I'd like to work on
extracting CW signals that are rather slow, from a
/en/details/fcr6842031t/optical-connectors/cliff/otj-1-fcr6842031t/
> [2]
> https://www.tme.eu/en/details/fcr6842032r/optical-connectors/cliff/orj-3-fcr6842032r/
>
> On 18.03.22 19:53, Marcus D. Leech wrote:
> > On 2022-03-18 14:48, david vanhorn wrote:
> >> Noise is alway
-03-18 14:48, david vanhorn wrote:
>
> Noise is always an issue. I could do a serial port over USB, or TTL
> USART, but I thought that the SD card would be the most quiet, not
> requiring any electrical connection to the PC.
> It also means that I automatically have my re
er at higher sampling rates) and sometimes, but
> only sometimes,
> ( d) people say that CSV is good because it's human-readable, but I
> challenge anyone to
> read a text file with only 10000 values and be happier about that than if
> he used a tool
> that displayed the valu
eadth? What are the components of your system, and how does the
> computer
> running GNU Radio relate?
>
> Best and slightly excited regards,
> Marcus
>
> On 18.03.22 18:37, david vanhorn wrote:
> > Hi!
> >
> > I'm trying to interface some radio hardware I bui
t might or
> might not be easy
> to implement :) In both cases, UART/SPI serial output converted to USB, or
> native USB,
> you'd probably have to afterwards write a schmall C/C++ driver, so that
> SoapySDR or GNU
> Radio directly can talk to it.)
>
> Cheers,
> Marcus
>
&g
Ive been wrestling with this for a while, and im not even seeing how to get
started implementing a Taylor detector in gr.
Is it even possible?
s D. Leech
wrote:
> On 2022-08-12 13:38, david vanhorn wrote:
> > Ive been wrestling with this for a while, and im not even seeing how
> > to get started implementing a Taylor detector in gr.
> >
> > Is it even possible?
> You mean a *Tayloe* Quadrature Sampling Dete
really funky with parameter sweeps and
> such.
>
> Sounds like a fun project! If you do write such an integration, please
> consider releasing it to the community as well.
>
> Nick
>
> On Fri, Aug 12, 2022 at 12:14 PM david vanhorn wrote:
>
>> I have built the de
ate multiplier can be fed with near perfect
> numerically generated sine waves with perfect amplitude and phase
> balance. Besides, even if you wanted to simulate a square wave local
> oscillator in DSP you'd have to approximate by only including the
> harmonics up to the
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