[Cours2021] cours mar 29 - 2022 sent successfully to cours2021 at hb9mm.com

[Douglas Magnenat]

Hello Tous,

Impressionnant la différence de perte entre les câbles usuels RG et un
simple fil nu : https://www.youtube.com/watch?v=uR8Rz0GrPVI&ab_channel=w2aew
Sauf que le résultat est l'inverse de ce que l'on croit : le fil nu a une
perte de moins de 0.2 Db à 30MHz, alors qu'un RG-58 a une perte de 2,5 Db à
30 MHz , et les pertes dûes au SWR amènent +4 Db supplémentaires pour un
SWR de 15 sur du RG-58.

De quoi alimenter les discutions de bistro entre Radio-amateurs :)

A bientôt !
Douglas

Le mar. 29 mars 2022 à 23:21, Olivier Pilloud <olivier at pilloud.net> a
écrit :

>
>
>
> -------- Forwarded Message --------
> Subject: cours mar 29 - 2022 sent successfully to cours2021 at hb9mm.com
> Date: Tue, 29 Mar 2022 21:16:06 +0000 (UTC)
> From: WeTransfer <noreply at wetransfer.com> <noreply at wetransfer.com>
> To: op at jouxtens.ch
>
> Thanks for using WeTransfer! Your files were sent successfully.
>
> [image: Click 'Download images' to view images]
> <https://wetransfer.com/?utm_campaign=WT_email_tracking&utm_content=general&utm_medium=logo&utm_source=notify_sender_on_upload_success_email>
>
> cours mar 29 - 2022 sent to
> cours2021 at hb9mm.com
> 1 item, 878 MB in total ・ Expires on 5 April, 2022
> Thanks for using WeTransfer. We'll email you a confirmation as soon as
> your files have been downloaded.
>
> Recipients
> cours2021 at hb9mm.com
> Download link
> https://we.tl/t-2aSwrz2b1F
> 1 item
>
> 2022-03-29 14.04.24 HB9MM - Formation à la licence radioamateur.zip
> 878 MB
>
> To make sure our emails arrive, please add noreply at wetransfer.com to your
> contacts
> <https://wetransfer.zendesk.com/hc/en-us/articles/204909429?utm_campaign=WT_email_tracking&utm_source=notify_sender_on_upload_success_email&utm_medium=Add+Us+To+Your+Contacts+Link&utm_content=general>
> .
>
> Get more out of WeTransfer, get Pro
> <https://wetransfer.com/pro?trk=WT201704_email&utm_campaign=WT_email_tracking&utm_content=general&utm_medium=plus_footer_ad_link&utm_source=notify_sender_on_upload_success_email>
> About WeTransfer
> <https://wetransfer.com/about?utm_campaign=WT_email_tracking&utm_content=general&utm_medium=about_link&utm_source=notify_sender_on_upload_success_email>
>   ・   Help
> <https://wetransfer.zendesk.com/hc/en-us?utm_campaign=WT_email_tracking&utm_source=notify_sender_on_upload_success_email&utm_medium=Footer+Help+Link&utm_content=general>
>   ・   Legal
> <https://wetransfer.com/legal/terms?utm_campaign=WT_email_tracking&utm_content=general&utm_medium=legal_link&utm_source=notify_sender_on_upload_success_email>
>   ・   Report this transfer as spam
> <https://wetransfer.zendesk.com/hc/en-us/requests/new?ticket_form_id=360000007663&utm_campaign=WT_email_tracking&utm_source=notify_sender_on_upload_success_email&utm_medium=Spam+Support+Link&utm_content=general&token=eyJhbGciOiJub25lIn0.eyJyZXF1ZXN0X3N1YmplY3QiOiJSZXBvcnQgdGhpcyB0cmFuc2ZlciBhcyBzcGFtIiwicmVxdWVzdF9kZXNjcmlwdGlvbiI6Imh0dHBzOi8vd2UudGwvdC0yYVN3cnoyYjFGIiwicmVxdWVzdF9hbm9ueW1vdXNfcmVxdWVzdGVyX2VtYWlsIjoib3BAam91eHRlbnMuY2giLCJyZXF1ZXN0X2N1c3RvbV9maWVsZHNfMzYwMDAwMTcxMjIzIjoiMGI3Yzg2MmRlYjU4YjI0MGU2OTNhMDYyMGY2YmYyODU0ZDg3YTkwOTk2MjNkYzhkNjBkMjkyZDc4ODBlYTVhNjIwMDFlNTdkNmVmNWIwYmE0NTYzMTAyZmVlMDU0Mzc0MzUyZmU5YmZhNDg5MTQyYzhmNzkyMzc1NjM0Y2ZiYzIifQ.>
>
> _______________________________________________
> Cours2021 mailing list
> Cours2021 at hb9mm.com
> http://lists.hb9mm.com/mailman/listinfo/cours2021
>
-------------- section suivante --------------
Une pièce jointe HTML a été nettoyée...
URL: <http://lists.hb9mm.com/pipermail/cours2021/attachments/20220330/e8de3282/attachment-0001.html>