Posts

Antennas 101 / How does an antenna work

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=oiBi9RbNBUY. This is post 2119 in a continuing series of simple ham radio antennas. Thanks to "0033mer" for this concise, easy-to-understand tutorial on basic antenna theory.  The use of a bagel to demonstrate the pattern of a vertical antenna is pure delicious genius.  The video is both informative and fun.  This video would make an excellent presentation for your radio club or amateur radio license class. Here are some comments from the video producer: "This video is a tutorial that will describe how antennas work and the properties of different configurations. The common Dipole and 1/4 wave Monopole will be covered. Instructions on how to build your own Monopole at any operating frequency will be discussed. LoRa Antenna video: https://youtu.be/JeUexihrKZQ " ----- For the latest Amateur/Ham Radio news and information, please visit

Stealth EZ End Fed Antenna and SG239 Smart Tuner an indoor antenna by G0...

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=HHRPHLgLXg4. This post 1228 in a continuing series of simple ham radio antennas. Getting on the air from a deed-controlled property (HOA/CC&Rs) is difficult and often challenging. In this video from Chris (G0MRR), we see what one UK radio amateur has done to get on the air without neighbors noticing his efforts.  Chris's equipment is modest--A Yaesu FT-890 HF transceiver, a 9:1 UnUn, a length of wire, and a SG239 auto "tuner". Of particular importance is the use of a good ground condition, something which Chris addresses in his situation.  A metal roof can be a real hindrance to successful operating. Here are some of Chris's observations: "Yaesu FT890 with EZ End Fed Antenna and SG239 Smart Tuner gives great results and is ideal as a stealth antenna. visit www.webpagereview.co.uk for further details. See Also: http://www.

Installing HF Antenna on Stealth Van. Post 2117.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=VclUw_S6fzg. Thanks to Anthony ("biblesnbarbells") for this excellent tutorial on installing an HF antenna on a van. Anthony lays out all of his materials in a logical sequence, making it easy to follow his smooth installation. This installation can be modified for home or portable use. You can get most of the materials from these sources: "  BiblesnBarbells Store: http://astore.amazon.com/biblesn0d-20 Mikes Electronics: http://www.mikeselectronicsfl.com/ Hustler RM-10 10 Meter Resonator: http://astore.amazon.com/biblesn0d-20... Hustler MO-4 HF Mast: http://www.dxengineering.com/parts/hs... Comet HD-5M Heavy RS-840 Lip Mount: http://astore.amazon.com/biblesn0d-20... " ---------- For the latest Amateur/Ham Radio News and Information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http

Ham Radio - The simple coax cable emergency prepper antenna.

Image
If you can see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=tafy51yUzQo. This post 2116 in a continuing series of simple ham radio antennas. If you need a quick and easy 2 meter antenna, then this video from Kevin Loughnin (KB9RLW) is for you. All you need is some surplus coaxial cable, simple tools, and "F" or PL-259 connectors. Kevin does an excellent job of assembling this simple, classic version of the "sleeve dipole antenna". Make a few of these antennas for your emergency "go-kit" or for your next mini-dxpedition to the nearest public park.  A fun, educational project that will prove useful in emergency  and portable operations. Here are some remarks from Kevin: " old design that many new hams may not be familiar with. Easy to build with minimal tools, great emergency throw-it-together antenna. If you like my videos, please subscribe here: http://www.youtube.com/user/loughkb

Electric Car Mobile HF Radio Install. Post 2115.

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2DJdUfT_TnM. Radio amateurs have been installing their rigs and antennas on their vehicles for over 100 years. In this video, the "Ham Radio Crash Course" (John Nass) takes us step-by-step through the installation of an HF antenna in an electric vehicle. Like installations in liquid-fueled cars, bonding and grounding are important keys to a successful mobile antenna installation. RFI can be a major problem for electric vehicles as well, since the large batteries found in these vehicles can generate quite a bit of interference. If you follow the suggestions in this video, your installation will be successful.  The tips offered in this video apply equally to installations in hybrid and conventionally-powered vehicles.  Be sure everything that can radiate a signal is grounded. Here are comments from the video author that may help you get started: &