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Message-ID: <004301ca6fa2$2fb1d890$0900a8c0@lark>
From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
References: <806352.5294.qm@web63603.mail.re1.yahoo.com>
Date: Fri, 27 Nov 2009 20:42:36 -0000
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Subject: LF: Re: How do I use Spectrum Lab as a VLF Soft Receiver ?
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I am not sure about this you need to scour the help files but the SID
receiver is not meant for listening to it is to produce a sig-strength v
time plot. You might need some fairly crafty software connection for Spec
Lab Wolf will maybe reply he does monitor.

As an easy alternative try WinRad by Alberto www.weaksignals.com and just
stick a wire into the mic input and you get a full SDR receiver. I am not
sure you get sound out even then you may be Virtual Audio Cable, or perhaps
Alberto has a hook in the code now. The thing is you are using the card
twice....once to pruduce the receiver and again to produce the audio output.
I cant check at the moment I am still in the process of loading up this PC.

Best Wishes
Alan G3NYK

----- Original Message -----
From: "Andy - KU4XR" <ku4xr@yahoo.com>
To: <lowfer@mailman.qth.net>; <rsgb_lf_group@blacksheep.org>
Sent: Friday, November 27, 2009 7:14 PM
Subject: LF: How do I use Spectrum Lab as a VLF Soft Receiver ?


> Hello All:
>
> I have recently been trying to get a soundcard VLF receiver
> going. I found a SAQ receiver on the web designed by
> Johan - SM6LKM. It works good I suppose never having tried
> this before. I can hear " Radio noise " in other words, it
> actually sounds like a receiver. When I connect enough
> coils in series, with a variable cap to ground to make a
> pre-selector, The noise floor will rise 20 dB when I tune
> the Cap. and you can see the peak move across the spectrum
> display. However, that's as far as you can go, You can't
> choose a sound card, it automatically chooses the windows
> default card, and I haven't found a way to use DSP filtering
> with it, since everything is based on the sound card alone.
>
> Now for Spectrum Lab, It has a built in " SID " receiver,
> and the built in DSP filters work in the program. I just can't
> get it to work !!!!! All I can get is low freq. hum, or
> digital noise. It makes no difference with or without an Ant.
> I've changed sound card sample rates, and FFT settings,
> nothing works for me.
>
> Does anyone have any suggestions for me to try  ?? Thank you.
>
> 73 to all :::
>
>
> Andy - KU4XR - EM75xr - Friendsville, TN.
> LOWfer Beacon " XR " @ 185.29866 KHz ( QRSS-60 )
> Coordinates:  N:  35* 43' 54" - W:  84* 3' 16"
> http://www.myspace.com/beaconxr
> http://webpages.charter.net/ku4xr/
>
>
>
>