Date
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Gain and offset sliders in SDRC?
Depends on the SDR
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of John Miller K8UMF via groups.io <imtekms@...>
Sent: 26 March 2023 17:37
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: [SDR-Radio] Gain and offset sliders in SDRC?
Sent: 26 March 2023 17:37
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: [SDR-Radio] Gain and offset sliders in SDRC?
Hi,
How does one access the gain and offset sliders in SDRC? I find references to them but no indication about how to access them. Many thanks in advance for any help.
John K8UMF
How does one access the gain and offset sliders in SDRC? I find references to them but no indication about how to access them. Many thanks in advance for any help.
John K8UMF
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- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
John Miller K8UMF
Hi Dennis, Thank you for your reply. The offset here is the top of the noise floor. In my case, the peak of the noise floor is about 70% of the full signal range in the spectrum and is somewhat analogous to the offset control with an oscilloscope to correct for DC offset.
John K8UMF
John K8UMF
John Miller K8UMF
Hi Simon,
The problem here is that a good deal of the display dynamic range is lost since the noise floor is about half scale as shown in the screen capture. How can I move the noise floor closer to the X-axis? I realize that this unrelated to reception.
Many thanks for your help!
John K8UMF
The problem here is that a good deal of the display dynamic range is lost since the noise floor is about half scale as shown in the screen capture. How can I move the noise floor closer to the X-axis? I realize that this unrelated to reception.
Many thanks for your help!
John K8UMF
- Ribbon Bar, View, Spectrum, Scale
- As you move the mouse around the display look for the Red buttons - click on High, Low...
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of John Miller K8UMF via groups.io <imtekms@...>
Sent: 27 March 2023 17:14
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Gain and offset sliders in SDRC?
Sent: 27 March 2023 17:14
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: Re: [SDR-Radio] Gain and offset sliders in SDRC?
Hi Simon,
The problem here is that a good deal of the display dynamic range is lost since the noise floor is about half scale as shown in the screen capture. How can I move the noise floor closer to the X-axis? I realize that this unrelated to reception.
Many thanks for your help!
John K8UMF
The problem here is that a good deal of the display dynamic range is lost since the noise floor is about half scale as shown in the screen capture. How can I move the noise floor closer to the X-axis? I realize that this unrelated to reception.
Many thanks for your help!
John K8UMF
--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.
John, I think you need to adjust the "visual gain". Can you take a snapshot of the screen with the Home tab shown so I can see your radio settings? Also, please attach the screen capture file do not embed it in the email.
I have attached a short video that shows the effect of adjusting the visual gain.
--
Dennis
KA6FUB
I have attached a short video that shows the effect of adjusting the visual gain.
--
Dennis
KA6FUB
jdow
There is something that purports to do that. I find it fails me almost completely because of the way Simon has implemented it.
{o.o}
On 20230326 18:46:33, John Miller K8UMF
wrote:
Hi Dennis, Thank you for your reply. The offset here is the top of the noise floor. In my case, the peak of the noise floor is about 70% of the full signal range in the spectrum and is somewhat analogous to the offset control with an oscilloscope to correct for DC offset.
John K8UMF