Posts

K7PP's Multi Band Fan Dipole Project Ham Radio. Post #1407.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=SXqSY5JKQzs. You can still design, build, and use a multi band HF dipole antenna even if you don't have an antenna "tuner", "traps", or a lot of space.  In this video, K7PP shows us step-by-step how he created an efficient "Fan Dipole" antenna for his medium-sized back yard.  Just follow the easy directions in this video and you soon will have an efficient, relatively inexpensive, and effective multi band HF dipole antenna for your station. For the latest Amateur Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday). https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information)--temporary URL. Be sure

HF Field Ops Gear-up. Dipole Antenna Tuning. Post #1406.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cgdP8ao71Cc. You should also get the author's script and a list of NVIS technical references. This exceptionally well-done video from "GUERRILLACOMM" shows you how to design, build, tune, and operate a NVIS (Near Vertical Incident Skyway) antenna for portable or emergency use. According to the author, this low-lying NVIS dipole antenna is designed for 7 MHz (40 meter amateur radio band) and will cover local, state, and regional areas near your home.  It's always a good practice to test your portable antennas before you go to the field so you can make adjustments without stress or strain. Reaction to the video has been favorable, with suggestions ranging from wire trimming to best height above ground for efficient operations. Carl (N6CKV) suggests "Rather than cutting the wire to tune your antenna, try to fold the excess length ba

Jeri Ellsworth, AI6TK, and Amy Herndon, AI6ZU, at Quartzfest 2018 Part 2. Post #1405.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch/v=RXGp6TBBMFQ. This video from Randy Hall (K7AGE) is part 2 of an extended interview with Jeri Ellsworth (AI6TK) and Amy Herndon (AI6ZU) during the couple's visit to Quartzfest 2018 in Arizona. In this video, Randy, Jeri, and Amy go outside the RV (recreational vehicle) to examine the antenna system for their vehicle.  Some of the ideas discussed in this post could be helpful for radio amateurs who operate under severed restrictions, such as HOAs and CC&Rs.  Overall, an excellent interview with some fascinating rig and antenna ideas. For the latest Amateur Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday). https://bigislandarrlnews.com. https://hamradiohawaii.wordpress.com. https://paper.li/kh6jrm/1430289

Jeri Ellsworth, AI6TK, and Amy Herndon, AI6ZU, at Quartzfest 2018 Part 1. Post #1404.

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If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=x7-ttbOaLvM&t=78s. A fascinating and educational video tutorial on how to create a portable amateur radio station for a RV (recreational vehicle).  Randy Hall (K7AGE) dropped by the 2018 Quartzfest in Arizona to interview Jeri Ellsworth (AI6TK) and Amy Herndon (AI6ZU) as they prepared to operate at this annual festival for RV owners.  It's interesting to note how Jeri and Amy worked around grounding and antenna problems to get their mobile station on the air.  Some of the suggestions discussed in this video could be useful for radio amateurs operating in deed-restricted properties (HOAs/CC&Rs). For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday). http://amateurradionewsinformation.co

KL7 5 Band Pipe Vertical 20-17-15-12-10 meter vertical. Post #1403.

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KL7 5 Band Pipe Vertical 20-17-15-12-10 meter vertical (http://www.hamuniverse.com/kl7jr5bandvertical.html). Accessed on 15 February 2018, 0025 UTC, Post #1403. Author:  John Reisenauer, Jr. (KL7JR). Please enter post title in your browser search box to read the full article. Comment: Here's an interesting antenna project from John Reisenauer, Jr. (KL7JR) that could help those with limited space for a full dipole antenna.  John has provided an excellent diagram, materials list, construction notes, and photographs to help you build your own 5 band vertical antenna.  With a good antenna "tuner", low loss coaxial feed line, and a simple ground radial system, you could be on the air with a decent signal in a few hours. Most of the materials for this multiband vertical antenna can be found at the nearest building supply outlet or neighborhood hardware store. Here is a basic diagram of the antenna and the required material to get you started.  Please insert th