Simple Ham Radio Antennas--2 element beam for 20 metres from gw0jxm. Post #660.


If you're having difficulty viewing this video, please insert this address into your browser search box: https://youtu.be/IPJV45MbWzM.  Here's a fairly simple 2 element beam antenna for 20 meters that you can build over a weekend or on your vacation.  Andy Davies (GW0JXM), shows us the step-by-step process of designing, building, and using this portable antenna. At the end of this video, Andy gives us a sketch of the dimensions and the approximate cost for the elements and the mast.  Andy says the SWR is 1.11:1 and the 1.5:1 bandwidth is approximately 260 Hz.  The antenna and mast weight about 30 pounds/13.5 Kg, and would require a bit of effort to lift the entire assembly off the ground.  The gamma rod is 15 mm diameter copper rod and is 39 inches/99.06 cm long.  For the latest Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free email subscription or by tapping into the blog RSS feed.  Thanks for joining us today!  Aloha es 73 de Russ (KH6JRM).

Comments

Popular posts from this blog

Antenna for Condo Backyard-Stealth. Post #1542.

G5RV Multi Band HF Dipole Antenna. Post #1555.

Amateur Radio Bicycle Mobile Setup. Post #1554.