Date   

Re: SDR Console

Max
 

On Fri, Sep 17, 2021 at 03:27 PM, Simon Brown wrote:
‘Dazed and Confused’ ?
An excellent track (for those of us old enough to remember!)

Max


Re: Antennas: Best Mini-Whip ??

Gedas
 

Great ! Can you share with us what the exact setup for that antenna was?

How far from the house? How high up in the air? On a metal or non-conducting mast? Do you live close to other homes or power lines etc? How long and what kind of coax was feeding the antenna? Laying on the ground or underground? Did you use any CMC on that feedline? If so what was their composition/design? How about grounding of the antenna (length and gauge of ground wire, length of ground rod, type of soil)? Bias-T....home brew or OEM supplied? Linear or SMPS used? heck I don't know.....could go on with another dozen questions but these are the types of things as an RF engineer we need to know to make full use of your observations. Thanks for chipping in.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com (under repair)
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/17/2021 3:48 PM, Curt Faulk wrote:

Just to jump in here on this dogpile...

I have a Wellbrook ALA-330S and the original PA0RDT Mini-Whip from Roelof.

Both perform very well in varying conditions and if I had to do it over again and had limited funds, I would get the Mini-Whip.  I was VERY surprised at how well it works.

I can tell you from exact personal experience that it is a good antenna.


Re: Keeping Tuned Freq in Center

Kriss Kliegle KA1GJU
 

   For a realistic display of **DC Offset, connect to one of my servers that has an SDR-iq… KA1GJU Super Stations #1,2,4 and KA1GJU @ PCARC if you know how to load a server into your definitions.
   Select the max bandwidth, 192 kHz and start it. Takes about 8 seconds, but once started tune to a quiet band where no signals are present and look at the signal in the center. Now re-center display with a right click on either side at a good distance from it and watch what happens. It’s always centered! SDRC will reduce it over time, but it remains. Disconnect from the radio and connect again at the minimum bandwidth choice and repeat. SDRC will do a good job of completely removing it. 

   If I operate the SDR-iq locally, it’s not as pronounced and SDRC removes it completely over time. Not all SDR’s behave this way, but this anomaly is only when I operate via my servers (99% of time), not when using the SDR-iq locally. I have brought this to Simon’s attention over a year ago, but I just live with it and listen to signals on either side on center just fine.


** The DC offset is the difference between the ADC's "middle" voltage and the average voltage present at the ADC's input. The analog circuitry in the SDR will contain biasing circuitry designed to minimize the DC offset.

73 Kriss KA1GJU 



Re: Antennas: Best Mini-Whip ??

Curt Faulk
 

Just to jump in here on this dogpile...

I have a Wellbrook ALA-330S and the original PA0RDT Mini-Whip from Roelof.

Both perform very well in varying conditions and if I had to do it over again and had limited funds, I would get the Mini-Whip.  I was VERY surprised at how well it works.

I can tell you from exact personal experience that it is a good antenna.


Re: Keeping Tuned Freq in Center

Gedas
 

Interesting Alan. It is just personal preference and in the case of my RSPdx and Console once I hit the center button I do not notice any difference in the detected signals characteristics. Given that if I had a choice I would like to see all my tuned signals in the center.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com (under repair)
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/17/2021 7:02 AM, Alan G4ZFQ wrote:

On 17/09/2021 02:55, Gedas wrote:
But I like the center.

Gedas,

On 9/16/2021 7:50 PM, Siegfried Jackstien wrote:
I would try to AVOID centre...

With many SDRs the local oscillator is at the centre of the display.
Depending on the exact SDR and mode tuning to the centre  may have no effect, a slight effect or even ruin reception/transmission.
That is why it is generally recommended to avoid the centre.

Alan






Re: Antennas: Best Mini-Whip ??

Gedas
 

excellent thank you. tests run against other antennas can be most useful & revealing when properly documented & performed. The key is to document exactly what each system was and how it was installed, where, grounded, times of day, freq's, and at least a dozen other factors.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com (under repair)
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/17/2021 6:28 AM, michel soldevila wrote:

Sure I did !
Against a 10 m, L-shaped wire antenna with a wideband 9:1 transformer, and a buried coaxial cable to the shack. From 0 to 2 MHz, the mini whip is far better.
I have just finished building a 1m shielded loop with a differential amp (M0AYF) ; I will perform some test against the mini whip
Michel (F1GOC)


Re: SDR Console

Simon Brown
 

‘Dazed and Confused’ ?

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Derek Henderson via groups.io
Sent: 17 September 2021 15:26
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] SDR Console

 

Max What would you have liked me to say? “A little bit miffed” perhaps 


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


Re: SDR Console

Derek Henderson
 

Max What would you have liked me to say? “A little bit miffed” perhaps 


Re: SDR Console

Derek Henderson
 

Thanks Simon 


Re: SDR Console

Max
 

On Fri, Sep 17, 2021 at 12:36 PM, Derek Henderson wrote:
Can any member advise a safe sit to download a copy of SDR Console software without being attacked by a load 
Driver and PDF update advertising sites 

Many Thanks Derek H
I think "attacked" is a strong word. Just close down one ad usually, sometimes not even that. Could at worst be described as a minor irritation (IMHO of course).

Max


Re: Reverse Mouse Tuning Wheel

Max
 

Not aware of this as an option in SDRC. It seems mouse wheel can be reversed by editing the registry:

https://www.alphr.com/mouse-is-going-the-wrong-direction-heres-how-to-invert/

What about using a midi controller with SDRC or simply a midi tuning knob? Many on here have done this. Sorry, I don't have the time to search right now but there are many threads on it. Then you can map exactly what you want. I think this might be better for you?

Or use the keyboard arrow keys. This is my preferred method. Just in case you did not know, up/down cursor keys give coarse tuning, left/right is fine tuning, all steps setable for each mode. You need cursor over the spectrum/waterfall display to use this option, or hold down "shift" to activate it if the cursor is not in the display area.

Good luck

Max


Re: Reverse Mouse Tuning Wheel

Simon Brown
 

No,

 

Spin the other way? Mouse wheel down = frequency down, similarly when scrolling a web page. How is this mouse ball thing with web pages?

 

FWIW software only knows that the mouse wheel has spun, not the type of mouse.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of joe_word via groups.io
Sent: 17 September 2021 14:07
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Reverse Mouse Tuning Wheel

 

Does anyone have an answer for this question?

Joe  N9VX


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


Re: Reverse Mouse Tuning Wheel

joe_word
 

Does anyone have an answer for this question?

Joe  N9VX


Re: SDR Console

Simon Brown
 

Hi,

 

Only from https://www.sdr-radio.com/download .

 

The advertising keeps the software free, without adverts (and donations) SDR Console would not exist.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Derek Henderson via groups.io
Sent: 17 September 2021 12:37
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] SDR Console

 

Can any member advise a safe sit to download a copy of SDR Console software without being attacked by a load 
Driver and PDF update advertising sites 

Many Thanks Derek H


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


SDR Console

Derek Henderson
 

Can any member advise a safe sit to download a copy of SDR Console software without being attacked by a load 
Driver and PDF update advertising sites 

Many Thanks Derek H


Re: Keeping Tuned Freq in Center

Alan G4ZFQ
 

On 17/09/2021 02:55, Gedas wrote:
But I like the center.
Gedas,

On 9/16/2021 7:50 PM, Siegfried Jackstien wrote:
I would try to AVOID centre...
With many SDRs the local oscillator is at the centre of the display.
Depending on the exact SDR and mode tuning to the centre may have no effect, a slight effect or even ruin reception/transmission.
That is why it is generally recommended to avoid the centre.

Alan


Re: Antennas: Best Mini-Whip ??

michel soldevila
 

Sure I did !
Against a 10 m, L-shaped wire antenna with a wideband 9:1 transformer, and a buried coaxial cable to the shack. From 0 to 2 MHz, the mini whip is far better.
I have just finished building a 1m shielded loop with a differential amp (M0AYF) ; I will perform some test against the mini whip
Michel (F1GOC)


Re: Audio volume level passed to apps lower than expected

jdow
 

Um, why the obsession with this?

Most front ends have a gain control on them. Some, such as rtlsdr dongles,  have local AGCs. Hopefully those are left off where practical to give you some means of calibrating the system. AirSpy HF+ models are an exception. And they don't calibrate well as a result.

Within an rtlsdr dongle there are three gain controls. Each of them affect the antenna to consumer level for SSB and AM related modes. As it happens ALL analog gain controls in the system also have an influence on both system noise figure and dynamic range as a tradeoff. Once past the A/D converter all gain controls are equivalent and do the same thing for SSB and AM paths. Adjust them to comfortable settings and move on.

{O.O}

On 20210916 16:01:25, Frank O'Donnell K6FOD wrote:
Thanks for the comments on this.

So I'm gathering this: When I output audio from SDR Console and pass it to an app through Virtual Audio Cable, there are four places I can adjust settings to increase/decrease the audio level seen at the input to the app:

-- In SDR Console, with AGC turned off, adjust the gain slider in the AGC area

-- In SDR Console, under Playback device, adjust the output audio level slider

-- In Windows sound settings, under Input, select the Virtual Audio Cable line that I'm using to pass the audio, click on Device properties, adjust the volume slider

-- If the app that the audio is being sent to has any input gain/volume controls, adjust those

If anyone can think of any other settings to play with to raise/lower the audio level seen at the input to the app receiving the audio, it would be a great help to know about them.


Re: Keeping Tuned Freq in Center

Gedas
 

But I like the center.

Gedas, W8BYA EN70JT

Gallery at http://w8bya.com (under repair)
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/16/2021 7:50 PM, Siegfried Jackstien wrote:

I would try to AVOID centre...
Dg9bfc sigi 


Am 17.09.2021 01:03 schrieb Max <radiomax@...>:
On Tue, Mar 23, 2021 at 09:25 PM, Gedas wrote:
I am not sure if I saw this option or not but where can I enable the tuned frequency to remain (display) in the middle of the pan display as I tune around with the mouse scroll wheel? I have looked in the options window several times but keep missing it. TU
I don't believe that this is an option, at the moment anyway. Seem to remember it was discussed recently but cannot the relevant post. Had a vague recollection that Simon said he would look at it sometime?

As a sort of workaround, with "Auto-Center" box ticked in the "View" tab, a brief touch of the zoom control will re-centre the display.

Max


Re: Audio volume level passed to apps lower than expected

Siegfried Jackstien
 

In console also with agc on
There are sliders also for auto agc
Preset us 130 db... I had better results with turning it down a bit.. Say 60 or 65 db
And try what slope setting  you need

Dg9bfc sigj

Am 17.09.2021 01:01 schrieb Frank O'Donnell K6FOD <gio@...>:

Thanks for the comments on this.

So I'm gathering this: When I output audio from SDR Console and pass it to an app through Virtual Audio Cable, there are four places I can adjust settings to increase/decrease the audio level seen at the input to the app:

-- In SDR Console, with AGC turned off, adjust the gain slider in the AGC area

-- In SDR Console, under Playback device, adjust the output audio level slider

-- In Windows sound settings, under Input, select the Virtual Audio Cable line that I'm using to pass the audio, click on Device properties, adjust the volume slider

-- If the app that the audio is being sent to has any input gain/volume controls, adjust those

If anyone can think of any other settings to play with to raise/lower the audio level seen at the input to the app receiving the audio, it would be a great help to know about them.

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