Re: VLF: VLF at different locations and QRN as a function of daytime

[Daniele Tincani <danieletincani@yahoo.com>]

Hello Stefan, VLF,

 

would a wide-band capture over 24 hours from my QTH/receiver be of some interest for you? If so, I think I could be able to send the results to you by the end of this week or so (hoping batteries last enough :-)). Probably it could make sense to share the same .usr file for SpecLab so that to ensure a bit of consistency when comparing figures from different locations.

My sound card support 96KHz sampling at 24 bits/sample, but I found that card's noise looks much better when sampling at 48KHz.

 

Best regards

Daniele

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From: Stefan Schäfer <schaefer@iup.uni-heidelberg.de>
To: rsgb_lf_group@blacksheep.org
Sent: Mon, October 4, 2010 11:20:33 PM
Subject: Re: VLF: VLF at different locations and QRN as a function of daytime

Hi Daniele,

No problem about the callsign ;-) On VLF you don't even need one for transmitting, hi.

Oh, you are in JN53EM, i haven't known that. The distance is 707 km! This is the 3rd best distance at all! Unbelivable, for a antenna in that location, very fine!!!

I hope cou can improve your RX situation if this is your goal.

And i hope i can transmit more meaningful messages the next time ;-)

73, Stefan/DK7FC

Am 04.10.2010 14:57, schrieb Daniele Tincani:

Hello Stefan, VLF,

 

frankly speaking, it is still unbelievable to me that I was able to catch a faint trace of your signal and see it appearing on my PC. This is because of the intense hum at my location and the unsophisticated reception system that I use. Anyway, I'm glad to read your opinion that the screenshot I captured was really showing your tx :-)
I'm also interested in supporting your idea of collecting information about local QRN at different locations. I'm aways looking for simple-to-build solutions for improving my setup. May be some helpful information could emerge from this data analysis you are proposing.

For the time being, these are the information you have requested: the locator is JN53EM. As for the callsign, I'm sorry, I haven't one. I'm only "registered" as a SWL and my identifier is I0169LI (http://www.qrz.com/db/I0169LI/).

 

Cheers

Daniele