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Date: Sun, 11 Mar 2012 18:13:02 +0100
From: =?UTF-8?B?U3RlZmFuIFNjaMOkZmVy?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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Subject: Re: LF: OK2BVG_8970
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Hello Gerhard,

A recording would have been halpful now. Maybe it was due to the=20
settings? How did you switched to DFCW-120? Manually or by using the=20
predefined settings? There may be a difference in the filter and=20
noiseblanker settings which can make things 6 dB worse or so, you know...

73, Stefan/DK7FC

Am 11.03.2012 17:51, schrieb Gerhard Hickl:
> Hello Markus!
>
> I also thought about a coupling of antennas after playing around for a
> while in SpectrumLab. I had to set up the DFCW30 Window because I
> usually do not run one on my grabber.
>
> The signal in the usual 6000 window was strong indeed but when I
> switched to 30 or 60 or even 120, I wasn't able to see Lubos signal
> clear enough to run a QSO.
>
> I removed the antenna wire later from the coil but unfortunately it
> didn't change anything. Still no usable signal in faster modes.
>
> Lubos signal was good as many grabbers across Europe showed and this
> made it very clear to me: I have got a problem in receiving. Due to
> absence of signals, even this is hard to find out and was more than
> worth the test.
>
> At least the problem is identified and so I know what to focus on next.
>
> 73
> OE3GHB
> Gerhard
>
>
>
>
>
>
> Am Sonntag, den 11.03.2012, 13:01 +0100 schrieb Markus Vester:
>   =20
>> Hi Lubos, Gerhard,
>>
>> thanks very much for those tests! It is a real pleasure to see your
>> two signals side-by-side, in very good quality in my 0.48 mHz window.
>>
>> The QRN was not at its best yesterday. Pity that Gerhard didn't
>> receive Lubos clear enough for a QSO yet, even though the trace on the
>> OE3GHB grabber looked strong between 8:30 and 10. Perhaps a
>> problem of coupling between the resonant TX antenna and an RX probe?
>>
>> Looking forward for more dashes...
>>
>> Best 73,
>> Markus (DF6NM)
>>
>>
>>
>> From: Gerhard Hickl
>> Sent: Saturday, March 10, 2012 3:32 PM
>> To: rsgb_lf_group@blacksheep.org
>> Subject: Re: LF: OK2BVG_8970
>>
>>
>>
>> Hello Eddie, group!
>>
>> Thank you for watching out. Unfortunately I had no luck today. There
>> is
>> nothing of my signal seen on your grabber. Lubos left a clear trace.
>>
>> I noticed that my signal is fading out on most grabbers where I have
>> been visible and so I'm going to stop the transmission for today.
>>
>> It was very nice to compare Lubos and my antenna. We both ran 600mA of
>> Antenna-current. His antenna is higher and has more topload compared
>> to
>> mine. And now consider: He is living in a flat while I have a home and
>> a
>> small plot of land. So he's doing really well with his constructions.
>> He
>> somehow managed to hang his antenna between different blocks of flats,
>> more or less in a city. Marvellous.
>>
>> 73 es tnx everybody
>>
>> OE3GHB
>> Gerhard
>>
>>
>>
>>
>>
>>
>>
>>
>> Am Samstag, den 10.03.2012, 13:47 +0000 schrieb qrss:
>>     =20
>>> We are all begging for more :-)
>>>
>>> Eddie
>>>
>>> On 10/03/2012 12:50, Stefan Sch=C3=A4fer wrote:
>>>       =20
>>>> Hi Lubos, Gerhard,
>>>>
>>>> Very nice. I saw both of your signals in my "6000" and even in the
>>>> "600" window,
>>>>
>>>>         =20
>> http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html.
>>     =20
>>>> VLF propagation is exceptionally good, even yesterday many MSK
>>>> transmitters were significantly stronger than usual.
>>>> Tnx for the activity and good luck now in the afternoon Gerhard.
>>>> Lubos, your signal seems to be quite strong. FB antenna and 600mA
>>>>         =20
>> at
>>     =20
>>>> 120W (=3D 330 Ohm) is really good! Can't you run longer tests on
>>>>         =20
>> that
>>     =20
>>>> antenna? Yes i know, i could do the same here ;-)
>>>>
>>>> 73, Stefan/DK7FC
>>>>
>>>>
>>>>
>>>> Am 10.03.2012 13:01, schrieb Lubos OK2BVG:
>>>>         =20
>>>>> Hello VLF friends!
>>>>> Thanks for all reception reports. I am glad, that my signal was
>>>>> seen by Gerhard/OE3GHB, Markus/DF6NM, Eddie/G3ZJO, Mal/G3KEV,
>>>>> Stefan/DK7FC and Paul in Todmorden.
>>>>> I haven=C2=B4t a plan to transmit so long time today. Both, Gerhard
>>>>>           =20
>> and
>>     =20
>>>>> me, did some experiments in DFCW mode only. Than I kept my
>>>>>           =20
>> signal
>>     =20
>>>>> up until 12:00UT :-)
>>>>>
>>>>>
>>>>> Date: 10.03.2012
>>>>> Time: 07:40 UT - 12:00 UT
>>>>> Antenna: Marconi L 24m up + 220m top load
>>>>> PA: 120W  (Iant =3D 600mA)
>>>>> Identification:  carrier only
>>>>> Mode: carrier only
>>>>> FRQ: 8970.000 (Rubidium reference)
>>>>> Shift:
>>>>>
>>>>>
>>>>> It was very interesting VLF morning. Thanks everybody!
>>>>>
>>>>>
>>>>> Lubos, OK2BVG
>>>>>           =20
>>>       =20
>>
>>
>>     =20
>
>   =20