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Thread-Index: AQHVGILh1CHiRmVdOUO3rVR+giePgaaIyujigAFwZYCAAPKDkIABSBWAgAEWkdWAAOjxAIAAjBwe///n+wCAANTe0A== Date: Fri, 7 Jun 2019 06:34:28 +0000 Message-ID: <6DB8451D7F3D3947A5918808A59621EA5BEBBF0B@servigilant.vigilant.local> References: <6DB8451D7F3D3947A5918808A59621EA31596319@servigilant.vigilant.local>,<5CF283CC.9010701@posteo.de> <6DB8451D7F3D3947A5918808A59621EA5BEB7DAC@servigilant.vigilant.local> <5CF57C41.7020008@posteo.de> <6DB8451D7F3D3947A5918808A59621EA5BEB9071@servigilant.vigilant.local>,<5CF75AE7.8080103@posteo.de> <6DB8451D7F3D3947A5918808A59621EA5BEBAD4F@servigilant.vigilant.local>,<5CF907FC.803@posteo.de> <6DB8451D7F3D3947A5918808A59621EA5BEBBACC@servigilant.vigilant.local>,<5CF9695E.8020006@posteo.de> In-Reply-To: <5CF9695E.8020006@posteo.de> Accept-Language: es-ES, en-US Content-Language: es-ES X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [85.55.48.44] MIME-Version: 1.0 X-Originating-IP: 85.60.35.36 X-MailAssure-Domain: vigilant.es X-MailAssure-Username: smtpsolarwinds Authentication-Results: antispamcloud.com; auth=pass (login) smtp.auth=smtpsolarwinds@vigilant.es X-MailAssure-Outgoing-Class: unsure X-MailAssure-Outgoing-Evidence: Combined (0.61) X-Recommended-Action: accept X-Filter-ID: Mvzo4OR0dZXEDF/gcnlw0WF37iHSchYgKnNGmAxHYR+pSDasLI4SayDByyq9LIhV9pYV/Nso6UsG xjKYenzzb0TNWdUk1Ol2OGx3IfrIJKywOmJyM1qr8uRnWBrbSAGDJiPq8PmJuu7YOC8gdYyWscQz 4E/a7yDKGr49b/XGOm3nx8yeplRO3sLIqUlSH7OGZ4xUdQnTnkx1+P8J5y3njJOIWFXUh+IpRF9t B9BlKGg1VgsD3oqlqjGHeChT6eCBmdySlZou9qHIGOZDEEo7OzOxewfh+AToIgAT6Yh4WSHdDNTY KQDNjcKgNl4pkrK4IGmroeEpB0qOpyVVNLOawviT1dZQ2SOHGMtIoRKPAdJCh4/BoUr51xumqgDv kAOcsbgEGzFtyq1h0L2sI0HSHjg6xXzSQWLXXtGisNX6h+NS9wT7oELqxavbwzdX3Qz/smYfpztw dkx9TF8kMvPG0wdeM0Ie3DuEGYjrS15nAiu3KNYrfUUSInMivnja0wG+jEnj+0/sukBX17j8hn6e iIca+nPOKTKfxsYujFD/DBF6EipRzMVZ5LqwTx7Vvn9SAo2IPUcAB/4mS6z/8qQNkXLq9yGQIUbo QhqyQ9wQQvtktSfV5MGqYCzArfdclYeqodXm2Z+Oni/uFjqA4ZrHKnIAaQ0IS1WZsXrORqilnAJ2 SSek70lewMJaa8MVLVX2HarGgIw4zrf2iwoQCH7FRhMqABCuK7DVpOJr7QXPUVGZzmbQtiTag4sB GQMHK+9PHjY1fdQPAWzeGtCFd/LvBWlqG/zMb/dOsCq5I5AZ8duaUj7laL7nE2jlSZjbliuzvEIH cCE5e1x6LTD5Z8JTeH6m+UeFXprlCOm3BAEbJtBy1JXA5vWEYgRGncynW+3pl/CWx0jTWEOOctFS 8sxEslgg2CFD24dqF46Fjf/yXu3/asDO0V6SUvEY03codo+QchvY9bjOWQH+aKYh6nwnGIGfI/0b m9zMbLTDLNbsdEnNQ2+UaDjnre7I7StgG/sn X-Report-Abuse-To: spam@quarantine3.antispamcloud.com X-Spam-Score: 0.8 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hi Stefan, VLF >Oh this is not ideal and it may rise the QRM and lowers the signal levels significantly. How long is the cable? About 35m RG58 Content analysis details: (0.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [185.201.18.22 listed in list.dnswl.org] 1.5 RCVD_IN_SORBS_WEB RBL: SORBS: sender is an abusable web server [85.60.35.36 listed in dnsbl.sorbs.net] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 84016abdd353c82964b6d256164a353f Subject: Re: LF: Re: EbNaut considerations for tomorrow... Content-Type: multipart/alternative; boundary="_000_6DB8451D7F3D3947A5918808A59621EA5BEBBF0Bservigilantvigi_" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE, TO_ADDRESS_EQ_REAL autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false --_000_6DB8451D7F3D3947A5918808A59621EA5BEBBF0Bservigilantvigi_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Stefan, VLF >Oh this is not ideal and it may rise the QRM and lowers the signal levels = significantly. How long is the cable? About 35m RG58 >>RR. I suggest to put the transformer on the roof and connect the antenna = there. Then the shack earth is decoupled from the 'roof earth' ;-) I will test it. Keeping the transformer in the shack makes it very easy to = use the antenna for Tx again avoiding a trip to the top terrace to remove it There is no such a thing as ground or earth here at 80m heigh. The groung i= s still far away down the pipe So the pipe is really part of the antenna and it works as a top feeded, top= loaded vertical. At least in MF/LF Anyway will test it and see the difference I have the overnight spectrogram at 1min per pixel. The gap on the left at = about 21h is the test without antenna https://www.dropbox.com/s/ojhdcjskefomda2/Benidorm%2090m%20vertical%20LF%20= tuned%20VLF%2024KHz%201min%20x%20bin.JPG?dl=3D0 The elevators QRM is clearly identified and drops from about 00utc to 05utc= . Best, lower noise from 03 to 05utc Anyway amazingly quite, considering this is urban enviroment and the buildi= ng tower holds 78 neighbours with all kind of noisy sources at each home. And a couple of 3 phase 380V variators for t= he lifts just a few meters under the antenna 73 de Luis EA5DOM --_000_6DB8451D7F3D3947A5918808A59621EA5BEBBF0Bservigilantvigi_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Stefan, VLF

>Oh this is not ideal and it may rise the QRM and = lowers the signal levels significantly. How long is the cable?

About 35m RG58

>>RR. I suggest to put the transformer on the r= oof and connect the antenna there. Then the shack earth is decoupled from t= he 'roof earth' ;-) 

I will test it. Keeping the transformer in the shack = makes it very easy to use the antenna for Tx again
avoiding a trip to the top terrace to remove it

There is no such a thing as ground or earth here at 8= 0m heigh. The groung is still far away down the pipe
So the pipe is really part of the antenna and it work= s as a top feeded, top loaded vertical. At least in MF/LF

Anyway will test it and see the difference

I have the overnight spectrogram at 1min per pixel. The gap on the lef= t at about 21h is the test without antenna

https://www.dropbox.com/s/ojhdcjskefomda2/Benidorm%2090m%20vertical%20= LF%20tuned%20VLF%2024KHz%201min%20x%20bin.JPG?dl=3D0

The elevators QRM is clearly identified and drops fro= m about 00utc to 05utc. Best, lower noise from 03 to 05utc
Anyway amazingly quite, considering this is urban env= iroment and the building tower holds 78 neighbours with all kind
of noisy sources at each home. And a couple of 3 phas= e 380V variators for the lifts just a few meters under the antenna

73 de Luis
EA5DOM
--_000_6DB8451D7F3D3947A5918808A59621EA5BEBBF0Bservigilantvigi_--