Date   

Re: [OT] Radio Telescope

Simon Brown
 

That’ll be the bandwidth for all dishes, this is then combined so the actual bandwidth is far less.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Gisle Vanem
Sent: 08 July 2021 11:32
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] [OT] Radio Telescope

 

Something outside the scope of a simple RTLSDR or similar.

On the issue of World's largest Radio Telescope,
from: https://www.space.com/square-kilometer-array-telescope-construction-starts

  • ... listen to radio signals in the vast range of frequencies between 70 MHz to at least 25 GHz ...
  • 131,072 antennas located in Western Australia ...
  • ... collect about 13 terabits of data per second,

Wow!
Simon's new 3D view would have trouble keeping up here.


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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: [OT] Radio Telescope

Siegfried Jackstien
 

you need a lot of 4k screens to display that bandwidth ;-)

greetz sigi dg9bfc

Am 08.07.2021 um 12:32 schrieb Gisle Vanem:

Something outside the scope of a simple RTLSDR or similar.

On the issue of World's largest Radio Telescope,
from: https://www.space.com/square-kilometer-array-telescope-construction-starts

  • ... listen to radio signals in the vast range of frequencies between 70 MHz to at least 25 GHz ...

  • 131,072 antennas located in Western Australia ...

  • ... collect about 13 terabits of data per second,

Wow!
Simon's new 3D view would have trouble keeping up here.


[OT] Radio Telescope

Gisle Vanem
 

Something outside the scope of a simple RTLSDR or similar.

On the issue of World's largest Radio Telescope,
from: https://www.space.com/square-kilometer-array-telescope-construction-starts

  • ... listen to radio signals in the vast range of frequencies between 70 MHz to at least 25 GHz ...

  • 131,072 antennas located in Western Australia ...

  • ... collect about 13 terabits of data per second,

Wow!
Simon's new 3D view would have trouble keeping up here.


Re: VLF Sunrise Sunset effect at VLF using SDR and "LIL" Low Impedance Loop

jdow
 

I was thinking of a full spectrum width snap shot taken periodically so that all active channels can be shown fading and possibly, with enough frequency granularity, show the signal frequency change during your plot around 03:00:00. Different channel paths will show different fading times. And the 3 D view would probably be quite artistic.

{^_^}

On 20210707 22:15:26, Jean-Marie Polard wrote:
Here is such a plot of amplitude of DCF77 during half night and sunrise (a time signal vlf station in Germany) done with vlfrxtools of Paul Nicholson. But with Spectrum Lab one can do the same. Received with an UMC202HD usb soundcard and earth probes antenna


73's Jean Marie F5VLB

Le 08/07/2021 à 07:11, jdow a écrit :
That brings to mind a possibly interesting feature for people into observing changes in propagation would be a means of creating VERY slow waterfall images, once a second, once in 10 seconds, once a minute, once in ten minutes, etc, probably in a traditional 1,2,5,10 sequence. Then you watch the pips move and change with time. With a fine enough spectrum plot you can possibly actually see the frequency changes as the ionosphere moves up and down and the D layer comes in and out. It could be used for education.

{^_^}

On 20210707 20:17:02, f5vlb.jmp@... wrote:
have a look here also : https://www.facebook.com/groups/VLF.ULF.ELF


-- 
Jean-Marie Polard
F5VLB

http://www.polard.fr/


Re: VLF Sunrise Sunset effect at VLF using SDR and "LIL" Low Impedance Loop

Jean-Marie Polard <contact@...>
 

Here is such a plot of amplitude of DCF77 during half night and sunrise (a time signal vlf station in Germany) done with vlfrxtools of Paul Nicholson. But with Spectrum Lab one can do the same. Received with an UMC202HD usb soundcard and earth probes antenna


73's Jean Marie F5VLB

Le 08/07/2021 à 07:11, jdow a écrit :
That brings to mind a possibly interesting feature for people into observing changes in propagation would be a means of creating VERY slow waterfall images, once a second, once in 10 seconds, once a minute, once in ten minutes, etc, probably in a traditional 1,2,5,10 sequence. Then you watch the pips move and change with time. With a fine enough spectrum plot you can possibly actually see the frequency changes as the ionosphere moves up and down and the D layer comes in and out. It could be used for education.

{^_^}

On 20210707 20:17:02, f5vlb.jmp@... wrote:
have a look here also : https://www.facebook.com/groups/VLF.ULF.ELF


-- 
Jean-Marie Polard
F5VLB

http://www.polard.fr/


Re: VLF Sunrise Sunset effect at VLF using SDR and "LIL" Low Impedance Loop

jdow
 

That brings to mind a possibly interesting feature for people into observing changes in propagation would be a means of creating VERY slow waterfall images, once a second, once in 10 seconds, once a minute, once in ten minutes, etc, probably in a traditional 1,2,5,10 sequence. Then you watch the pips move and change with time. With a fine enough spectrum plot you can possibly actually see the frequency changes as the ionosphere moves up and down and the D layer comes in and out. It could be used for education.

{^_^}

On 20210707 20:17:02, f5vlb.jmp@... wrote:
have a look here also : https://www.facebook.com/groups/VLF.ULF.ELF


Re: VLF Sunrise Sunset effect at VLF using SDR and "LIL" Low Impedance Loop

f5vlb.jmp@...
 

have a look here also : https://www.facebook.com/groups/VLF.ULF.ELF


Re: 3D waterfall

Siegfried Jackstien
 

looks a bit like ROS mode :-)

dg9bfc sigi

Am 07.07.2021 um 22:04 schrieb данила фадеев:

Hello everybody
Taking this opportunity, I shot a video of what the experimental Russian HF hopping system looks like in the experimental 3D function from Simon. Sorry for the pun :)
   In this case, these are 8ms tones that are pseudo-randomly distributed over a 100 kHz bandwidth. Parcels do not overlap in time.
Thanks to Simon for the tool, and I hope for its further development.

Danila.


вт, 6 июл. 2021 г. в 00:26, jdow <jdow@...>:
Probably they do match in terms of power per pixel. The number of pixels wide makes a difference in levels.
{o.o}

On 20210705 09:15:00, Bart AA7VA wrote:
I find it interesting, and played with it for awhile.  Wasn't sure where in the band, or band width, was showing, but comparisons with the waterfall soon rectified that.
One thing that might help, the background noise (noise floor) does not match that in the waterfall it seems.  I need to adjust the waterfall to see the noise a bit to help in locating signals on the 3D - maybe some freq numbers, or other locating device could be added?  And/or a slide to adjust the background noise level in the 3D separate from the waterfall one? Using the "Auto" button on the left of main panel makes the 3D have zero background to help see the weak signals, so the suggested slide or a bit more gain in the base 3D setting may be of assistance.
Looks like a nifty addition, not sure if I will use it a lot, but interesting to play with.
Thanks for the toy Simon!


Re: Editing Favorites

Max
 

On Wed, Jul 7, 2021 at 02:43 PM, <YaddUser@...> wrote:
Thanks Max.  I never realized that.
NP. I think Favourites are a great tool that is often misunderstood and therefore underrated. Took me a while to understand the full power of them.

https://www.sdr-radio.com/Favourites

Best

Max


Re: 3D waterfall

данила фадеев
 

Hello everybody
Taking this opportunity, I shot a video of what the experimental Russian HF hopping system looks like in the experimental 3D function from Simon. Sorry for the pun :)
   In this case, these are 8ms tones that are pseudo-randomly distributed over a 100 kHz bandwidth. Parcels do not overlap in time.
Thanks to Simon for the tool, and I hope for its further development.

Danila.


вт, 6 июл. 2021 г. в 00:26, jdow <jdow@...>:

Probably they do match in terms of power per pixel. The number of pixels wide makes a difference in levels.
{o.o}

On 20210705 09:15:00, Bart AA7VA wrote:
I find it interesting, and played with it for awhile.  Wasn't sure where in the band, or band width, was showing, but comparisons with the waterfall soon rectified that.
One thing that might help, the background noise (noise floor) does not match that in the waterfall it seems.  I need to adjust the waterfall to see the noise a bit to help in locating signals on the 3D - maybe some freq numbers, or other locating device could be added?  And/or a slide to adjust the background noise level in the 3D separate from the waterfall one? Using the "Auto" button on the left of main panel makes the 3D have zero background to help see the weak signals, so the suggested slide or a bit more gain in the base 3D setting may be of assistance.
Looks like a nifty addition, not sure if I will use it a lot, but interesting to play with.
Thanks for the toy Simon!


Re: Improved LZ1AQ loop amplifier and W7IUV preamps for sale.

oldjackbob@...
 

Hi Everett,

Can you please explain what is "improved" (asking for a friend, as I already have one of your LZ1AQ amps built with 2SC5551s)?

Thanks,
Mark


Re: SDR Console With Network SDRPlay

Simon Brown
 

Hi,

 

Send me a link please – if the API is published I’ll take a look.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John (M5ET)
Sent: 07 July 2021 16:53
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console With Network SDRPlay

 

Thanks Simon. Sadly I can’t use the SDR Server as I’ve had to ship the SDR with a Pi to a remote location already.

 

Is there a plan to add this support in the future at all? And if not, could it be considered for adding to the roadmap please?

 

Many thanks!

John (M5ET)

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown
Sent: 07 July 2021 16:46
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console With Network SDRPlay

 

Hi,

 

I know this isn’t supported atm – if you have a Windows system you can use the SDR Server.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John (M5ET)
Sent: 07 July 2021 15:22
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] SDR Console With Network SDRPlay

 

Hi Simon et al,

 

Has anyone been able to get SDR Console to talk to an SDRPlay over an ethernet connection? SDRPlay provide a raspberry pi image which can run as a host, and expose the SDR over an ethernet connection.

 

There’s an ExtIO DLL available for HDSDR, but SDR Console is a much better piece of software than HDSDR in my opinion, and I’d prefer to use it if possible.

 

If I’ve missed something obvious, and SDR Console will already talk to ExtIO DLLs, do let me know, and I’ll get that imported instead!

 

73,

John (M5ET)


--

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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: SDR Console With Network SDRPlay

John (M5ET)
 

Thanks Simon. Sadly I can’t use the SDR Server as I’ve had to ship the SDR with a Pi to a remote location already.

 

Is there a plan to add this support in the future at all? And if not, could it be considered for adding to the roadmap please?

 

Many thanks!

John (M5ET)

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Simon Brown
Sent: 07 July 2021 16:46
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console With Network SDRPlay

 

Hi,

 

I know this isn’t supported atm – if you have a Windows system you can use the SDR Server.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John (M5ET)
Sent: 07 July 2021 15:22
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] SDR Console With Network SDRPlay

 

Hi Simon et al,

 

Has anyone been able to get SDR Console to talk to an SDRPlay over an ethernet connection? SDRPlay provide a raspberry pi image which can run as a host, and expose the SDR over an ethernet connection.

 

There’s an ExtIO DLL available for HDSDR, but SDR Console is a much better piece of software than HDSDR in my opinion, and I’d prefer to use it if possible.

 

If I’ve missed something obvious, and SDR Console will already talk to ExtIO DLLs, do let me know, and I’ll get that imported instead!

 

73,

John (M5ET)


--

- + - + -

Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: Improved LZ1AQ loop amplifier and W7IUV preamps for sale.

Simon Brown
 

Hi,

 

Post prices here if you wish, fine by me.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Everett N4CY via groups.io
Sent: 07 July 2021 16:17
To: sdr-radio@groups.io
Subject: [SDR-Radio] Improved LZ1AQ loop amplifier and W7IUV preamps for sale.

 

I have a few improved LZ1AQ loop amplifiers and W7IUV preamplifiers built and tested boards for sale. If anyone is interested please contact my off list for information and prices at everettsharp@...

 

Everett N4CY

 


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: SDR Console With Network SDRPlay

Simon Brown
 

Hi,

 

I know this isn’t supported atm – if you have a Windows system you can use the SDR Server.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of John (M5ET)
Sent: 07 July 2021 15:22
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] SDR Console With Network SDRPlay

 

Hi Simon et al,

 

Has anyone been able to get SDR Console to talk to an SDRPlay over an ethernet connection? SDRPlay provide a raspberry pi image which can run as a host, and expose the SDR over an ethernet connection.

 

There’s an ExtIO DLL available for HDSDR, but SDR Console is a much better piece of software than HDSDR in my opinion, and I’d prefer to use it if possible.

 

If I’ve missed something obvious, and SDR Console will already talk to ExtIO DLLs, do let me know, and I’ll get that imported instead!

 

73,

John (M5ET)


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Improved LZ1AQ loop amplifier and W7IUV preamps for sale.

Everett N4CY
 

I have a few improved LZ1AQ loop amplifiers and W7IUV preamplifiers built and tested boards for sale. If anyone is interested please contact my off list for information and prices at everettsharp@...
 
Everett N4CY



SDR Console With Network SDRPlay

John (M5ET)
 

Hi Simon et al,

 

Has anyone been able to get SDR Console to talk to an SDRPlay over an ethernet connection? SDRPlay provide a raspberry pi image which can run as a host, and expose the SDR over an ethernet connection.

 

There’s an ExtIO DLL available for HDSDR, but SDR Console is a much better piece of software than HDSDR in my opinion, and I’d prefer to use it if possible.

 

If I’ve missed something obvious, and SDR Console will already talk to ExtIO DLLs, do let me know, and I’ll get that imported instead!

 

73,

John (M5ET)


Re: Editing Favorites

YaddUser@...
 

Thanks Max.  I never realized that.


Re: Editing Favorites

Max
 

Easiest way is to recall the Favourite (7.0 to 7.3).

See the semi transparent bar at the bottom of the waterfall. The translucent part shows the current span of the waterfall display. Just take the left hand edge of the semi-transparent bar, left-click and drag it up to 7.125, then click "Update" top left of the screen in the Favourites strip. you will see a confirmation box come up with the new span. Click "OK". Job done.

See attached screengrab.

Hope it helps.

Max


Re: Editing Favorites

Curt Faulk
 

Dominic, I'm not in front of the software right now but I think if you dial in the view that you want and then add that as a favorite it will save the spectrum that you are viewing at the time. You can then delete any others that are near duplicates that you want. I'm recalling this from memory so you might give this a try and see if it works..

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