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RE: LF: Spectrum Lab & VLF

To: "[email protected]" <[email protected]>
Subject: RE: LF: Spectrum Lab & VLF
From: VIGILANT Luis Fernández <[email protected]>
Date: Wed, 27 May 2015 08:37:55 +0000
Accept-language: es-ES, en-US
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Thread-index: AQHQliJVvnoe57aB9kmcnfQeeQxWvZ2MVRoAgADQSwCAAOVaMIAARFyAgAE0vxA=
Thread-topic: LF: Spectrum Lab & VLF
Thank you very much for the information Wolf

I take this opportunity to thank you for SpectrumLab. Congratulations for this 
masterpiece. One never ends findind features and all works smoothly and smart 

73 de Luis

-----Mensaje original-----
De: [email protected] 
[mailto:[email protected]] En nombre de wolf_dl4yhf
Enviado el: martes, 26 de mayo de 2015 18:10
Para: [email protected]
Asunto: Re: LF: Spectrum Lab & VLF

Hi Luis,

The presence and position of the 'waterfall colour to dB' legend is configured 
in SL's Screen Capture settings:

Set the checkbox 'color legend'. You can also select *where* (in which corner 
of the screenshot) that 'legend' shall appear.

Uploading captured images via FTP requires a command-line driven external FTP 
There is one integrated in windows, but it's so terrible to use (and
control) that I would try something different. You need to create an 
old-fashioned batch file to do this (if no modern FTP client is available):

The FTP upload command can be invoked from the 'screen capture extension 
macros'. These commands are invoked shortly *after* every timer-driven screen 

For more details, I suggest to ask the question in the Spectrum Lab Users 
group, there may be users more familiar with command-line driven FTP utilities 
under Windows 7 / 8 (which I hardly use myself).

Hope this helps,
   73,   Wolf  DL4YHF .

Am 26.05.2015 12:11, schrieb VIGILANT Luis Fernández:
> Hi All
> Just about SpectrumLab. I have a question
> Would like to know how to add those featured "palette versus dB" 
> little charts found usually in grabbers. At the moment I'm just using 
> this configuration for Screen Capture 
> 20Capture%20options.JPG
> How to upload the screen captures to ftp server would be a nice help 
> too. I have my grabber running but stopped at this point. So no 
> uploads to a web page, just Dropbox files updated
> Hope this is useful and on topic for most of the hams here
> 73 de Luis
> -----Mensaje original-----
> De: [email protected] 
> [mailto:[email protected]] En nombre de [email protected] 
> Enviado el: martes, 26 de mayo de 2015 0:25
> Para: [email protected]
> Asunto: Re: LF: Spectrum Lab & VLF
> Hi Edgar, Stefan and Wolf,
> Your help is muchly appreciated.  Edgar seems to have no problem switching 
> between qrss60/120.  I tried Stefan's settings but still no sigs on the 
> screen.
> The monitor scope is showing a nice little green line with some random noise 
> for QRSS60 and 120.
> It seems the signal is getting in but being lost by the computer/sound card 
> for QRSS120.  Perhaps try another computer?
> 73 & TNX
> Joe VO1NA
> On Mon, 25 May 2015, wolf_dl4yhf wrote:
>> Hello Joe,
>> I will check the QRSS120 configuration soon, maybe I had copied the 
>> settings from a computer where the input level (soundcard) was rather 
>> high, and the signal in your case is much weaker.
>> When turning on the "input monitor" (scope-like gadget), does it show 
>> a flat green line, or a noisy-looking waveform ?
>> Flat line -> not good (wasting dynamic range of the soundcard's A/D
>> converter)
>> Green waveform -> ok
>> Red waveform -> not good (not much headroom before clipping)
>> Details:
>> Cheers,
>>   Wolf DL4YHF .
>> Am 24.05.2015 15:01, schrieb [email protected]:
>>> Dear Group,
>>> A QRSS60 detection at 5.2 km is the best DX for yours truly to date.
>>> Although there was a detection at 7 km, this was probably via 
>>> conduction from a nearby mains line. The RX is a DK7FC VLF probe and 
>>> Spec Lab on a laptop.
>>> The next logical step is to try QRSS120 to get past the 5.78 km boundary.
>>> To my abject dismay, when doing: Quick Settings/ Slow Morse 
>>> Reception(QRSS)/ Slow CW, 120 s/dot/ Enter AUDIO centre frequency
>>> (8277 entered) / OK/no; the spectrum screen scrolls across 
>>> completely blank and the real time spectrum on the right shows a flat line.
>>> Going back to QRSS60, all is just fine.
>>> Am I or the computer malfunctioning again?
>>> Many thanks
>>> Joe VO1NA

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