Message-ID: <4CD9BA8C.5020908@iup.uni-heidelberg.de>
Date: Tue, 09 Nov 2010 22:18:04 +0100
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <schaefer@iup.uni-heidelberg.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.11) Gecko/20100711 Thunderbird/3.0.6
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <4CD861D8.3070904@iup.uni-heidelberg.de>	 <1289331223.1512.9.camel@gerhard-desktop>	 <4CD9AD46.7040905@iup.uni-heidelberg.de> <1289336639.1694.12.camel@gerhard-desktop>
In-Reply-To: <1289336639.1694.12.camel@gerhard-desktop>
Subject: Re: VLF: Long time transmission on earth antenna
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: quoted-printable
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org


Hi Gerhard,

Oh, disabling the internal filter may reduce the SNR by several dB! You=20
are in 594 km distance, this is not trivial ;-)
Maybe you can record the whole session as an audio file and reprocess it=
=20
later on the "new" PC? I thinkk this does not take much CPU load, just=20
some disk space that will be back after you got the optimised capture=20
and deliting the file then...

73, Stefan

Am 09.11.2010 22:03, schrieb Gerhard Hickl:
> Hi Stefan!
>
> No, I wasn't meant that urgently...I just thought about leaving a
> message to the reflector before leaving home...
>
> I already have tried your config file on the "old" notebook and so far
> it seems to bear with it! I disabled the filter and the all the other
> stuff and connected the Spectrum-Analyser to "L1" instead, otherwise I
> just saw red symbols in the "component-view".
>
> This "raw" output is uploaded to my grabber-page in a 15 Minute
> interval. I will use the time tomorrow, before you start your
> transmission to calibrate the colour and brightness settings.
>
> gl
>
> OE3GHB
> Gerhard
>
>
>
>
> Am Dienstag, den 09.11.2010, 21:21 +0100 schrieb Stefan Sch=C3=A4fer:
>   =20
>> Hello Gerhard,
>>
>> Am 09.11.2010 20:33, schrieb Gerhard Hickl:
>>     =20
>>> Would be nice if you could inform us on the reflector, shortly before
>>> you begin your transmission.
>>>
>>>       =20
>> Sorry, but i have no internet on the hill, just as in Darmstadt. Let's
>> hope i can receive the GPS there in the forest! But you will see my
>> signal on my grabber.  It will be visible in DFCW-60,maybe even in
>> DFCW-3. Never mind if you loose some minutes!
>> Maybe its better to start the PC before you go to work since it takes=
 a
>> long time until the first pixel is shown. This makes it easier to adjus=
t
>> the color scale later when the signal appears... Just how you want :-)
>>     =20
>>> Looking forward to your experiment
>>>
>>>       =20
>> Mee to :-) Thank you.
>>
>> 73, Stefan
>>
>> PS: I have arranged a window of the supplied usr file at
>> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
>> It is already running!
>>
>>     =20
>
>   =20