Télécommunications

How High Should a Dipole Antenna Be? (#176)

Antennas are amazing devices, and height above ground affects the antenna radiation pattern. How high should a dipole be? I say a half wavelength! Why? Watch and find out! Thanks to sponsor LCSC Electronics, http://lcsc.com.

Subscribe: https://youtube.com/user/davecasler. Ask Dave Playlist: https://goo.gl/inaQeB. Tip Jar: http://ke0og.net/tip-jar

To learn more about me, visit: http://www.dcasler.com/about/
Tip jar (on my website): http://www.dcasler.com/tip-jar/ (provides a method to use your credit card via PayPal, Also describes Patreon)
To pose an Ask Dave question: http://www.dcasler.com/ask-dave/ or http://www.ke0og.net/ask-dave/
To order the old Technician videos on DVD: http://dcasler.com/how-to-buy-technician-videos-on-dvd/
To order the most recent and up-to-date Amateur Extra videos on a thumb drive: http://dcasler.com/aevids-on-stick/

Theme music is « Sour Tennessee Red, » by John Deley and the 41 Players, courtesy YouTube Music Library.
I use drawings from OpenClipArt.org, including the « walking man »
Technician training videos, see http://www.ke0og.net/training/
General training videos, see http://www.ke0og.net/general/
Amateur Extra training videos, see http://www.ke0og.net/extra/
List of the Ask Dave videos, see http://dcasler.com/ask-dave/#askdavelist
Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)

My primary website: http://www.dcasler.com
The ham radio part of my website (direct link): http://www.ke0og.net
My publishing website: http://www.mtsneffelspress.com, where you can find my fantasy and science fiction books, as well as some local history books I publish for the Ridgway Railroad Museum and the Ouray County Historical Society
My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
And I’m now reading (producing) audiobooks! See my first effort here: https://goo.gl/0GTHsW

I’m often asked what equipment I use to create the videos. The devices include the Panasonic DMC-G7 camera, Panasonic HDC-TM90 video camera, GoPro Hero2 HD camera, Tascam DR-05 audio recorder, Audio-Technica ATR-3350 lapel microphone, Sony Cyber-shot DSC-W560 digital camera, the Kodak Zi-8 video camera, my iPhone 5S, and Pentax K100D DSLR. Software used: CyberLink PowerDirector 16 on a Toshiba S55-A5294, also using Smoothdraw 4.0.5.0, FastStone Image Viewer 5.3, FastStone Capture 8.0, Audacity 2.1.1, LibreOffice 5.0.4.2, and Ink2Go 1.7.2. You can see how my studio is set up by viewing https://youtu.be/wFSQ8vtNA5A.

Twitter: @dcasler

Views : 52814
antenna

Source by David Casler Ask Dave

Mourad ELGORMA

Fondateur de summarynetworks, passionné des nouvelles technologies et des métiers de Réseautique , Master en réseaux et système de télécommunications. ,j’ai affaire à Pascal, Delphi, Java, MATLAB, php …Connaissance du protocole TCP / IP, des applications Ethernet, des WLAN …Planification, installation et dépannage de problèmes de réseau informatique……Installez, configurez et dépannez les périphériques Cisco IOS. Surveillez les performances du réseau et isolez les défaillances du réseau. VLANs, protocoles de routage (RIPv2, EIGRP, OSPF.)…..Manipuler des systèmes embarqués (matériel et logiciel ex: Beaglebone Black)…Linux (Ubuntu, kali, serveur Mandriva Fedora, …). Microsoft (Windows, Windows Server 2003). ……Paquet tracer, GNS3, VMware Workstation, Virtual Box, Filezilla (client / serveur), EasyPhp, serveur Wamp,Le système de gestion WORDPRESS………Installation des caméras de surveillance ( technologie hikvision DVR………..). ,

Laisser un commentaire

Votre adresse e-mail ne sera pas publiée. Les champs obligatoires sont indiqués avec *