Message-ID: <4EB99553.1090806@iup.uni-heidelberg.de>
Date: Tue, 08 Nov 2011 21:47:15 +0100
From: =?ISO-8859-15?Q?Stefan_Sch=E4fer?= <Stefan.Schaefer@iup.uni-heidelberg.de>
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To: rsgb_lf_group@blacksheep.org
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In-Reply-To: <4E0E7122F96648A88F0D2C7BE06884AA@AGB>
Subject: Re: LF: Arcing...
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Yes i did. I knew i have 3 minutes, which were enough to screw it on the=20
thread. Then back to the TX and enabling the PA again ;-)

S.

Am 08.11.2011 21:27, schrieb Graham:
> Assume you  pulled the  fuse first  ... unless  you  have a clock =20
> work qrsss  generator
> I would not  trust  windows  ..!
>
> G.
>
> --------------------------------------------------
> From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
> Sent: Tuesday, November 08, 2011 8:00 PM
> To: <rsgb_lf_group@blacksheep.org>
> Subject: Re: LF: Arcing...
>
>>
>> Good idea ;-) But it was dark so i didn't find a target. And as i=20
>> have been on the roof, 5 minutes ago, i installed it on the spark=20
>> gap. Between the 7 and F of my QRSS-120 transmission;-) Now arcing is=20
>> history!
>>
>> 73, Stefan
>>
>> Am 08.11.2011 20:31, schrieb Graham:
>>> what  are you  going to  shoot  at  :)
>>>
>>> --------------------------------------------------
>>> From: "Stefan Sch=E4fer" <Stefan.Schaefer@iup.uni-heidelberg.de>
>>> Sent: Tuesday, November 08, 2011 7:23 PM
>>> To: <rsgb_lf_group@blacksheep.org>
>>> Subject: Re: LF: Arcing...
>>>
>>>>
>>>> That will solve the problem:=20
>>>> http://dl.dropbox.com/u/19882028/LF/Electrode.JPG
>>>>
>>>> 73 to all.
>>>>
>>>> Stefan
>>>>
>>>> Am 06.11.2011 20:51, schrieb Stefan Sch=E4fer:
>>>>> Seems i need some improvements on the spark gap of my LF antenna.=20
>>>>> Depending on the humidity and wind there is some arcing during the=20
>>>>> transmissions. These look very fascinating i find. Anyway i have=20
>>>>> to add a spherical electrode there and increase the gap distance,=20
>>>>> especially for VLF ;-)
>>>>>
>>>>> A working colleague of me is a (semi) proffessional photographer=20
>>>>> (hobby) and i asked him to take some nice pictures. He has an=20
>>>>> excellent equipment i find but he means he should have taken a=20
>>>>> different lens for these pictures. Anyway, i really like them.
>>>>> When arcing at the ends of a LF antenna is discussed, sometimes a=20
>>>>> picture can help a newcomer what is meant. Here are some more=20
>>>>> examples, in high resolution (abt. 3 MB each)
>>>>>
>>>>> http://dl.dropbox.com/u/19882028/LF/20111106-19h54m07s-FF7_8461.jpg
>>>>> http://dl.dropbox.com/u/19882028/LF/20111106-19h58m31s-FF7_8466.jpg
>>>>> http://dl.dropbox.com/u/19882028/LF/20111106-20h02m13s-FF7_8470.jpg
>>>>> http://dl.dropbox.com/u/19882028/LF/20111106-20h03m58s-FF7_8472.jpg
>>>>>
>>>>> 73, Stefan/DK7FC
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>
>
>