From: "jannsen" <0482183881-0001@t-online.de>
To: rsgb_lf_group@blacksheep.org
References: <6b.13dab896.28252382@aol.com>
Subject: Re: LF: Re: g3aqc beacon image
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Date: Sat, 5 May 2001 19:25:28 +0200
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DL4YHF@aol.com schrieb:
> Hi Uwe and Laurie,
>
> the reason why Uwe's nice picture of Laurie's transmission looks quite sharp 
> is simply because the FFT length used there is quite low. This gives nice 
> sharp edges of the DFCW signal, but also reduces the spectral resolution.
> If you have to dig deep in the noise because you are on the other side of the 
> pond, you must use a higher FFT length to have a more smoothing effect (I 
> guess ARGO does something like that automatically when set to a "very slow 
> QRSS" mode).
>
> So thanks for the picture Uwe, I'd like to know what settings you were using 
> when making the spectrogram (my own spectrograms are a little more "blurred" 
> if that's the proper word).
>
> 73's  Wolf  (DL4YHF; DF0WD)  JO42FD.
>
>
Hi Wolf es all,
the settings were as follows:
1. on via alert func (rx on 135,92 kHz)
2. components: sound directly into analyzer
3. QRG: axis 795 to 805 Hz
        resolution 0,0421 Hz
	(Band 0 to 1378,13 Hz)
4. Sample: nom es calib 11025 / 4
5. FFT: type real
        average 0
        anti-alias on
6. scroll 2sec.

Wolf, tks for SpecLab1.65. its fantastic! Loran Watcher settings per click, 
marvelous!
regards
Uwe/dj8wx