Amateur radio vertical antenna software

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Access to HFN Pilot Stations for internet services is limited to ham radio operators, holding a valid license of any country for HF operation. About ALE. HF Digi Messaging. Emergency Comm. Get Started ALE. ALE Software.
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Amateur Radio Antenna Projects

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Antennas - Amateur-radio-wiki

This makes them well suited for working DX, provided attention is paid to the ground around them. Even just half that many 8 ground, or 2 elevated radials will provide good results. However when mounting this type of vertical near the ground, its feedpoint should be elevated at least one meter, preferably two meters 4 to 7 feet above the ground. It is important that humans and animals cannot touch this part of the antenna. The disadvantage is, the feedpoint impedance is very high about 2K to 3K Ohms , and this must be matched to 50 Ohms. These have the advantages of needing no radials, no special matching at the feedpoint, and they typically have about 5 degrees lower takeoff angle than the quarterwave vertical. Disadvantage: the feedpoint is half way up the antenna, which can present mechanical difficulties.
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Amateur amateur radio; my vertical antenna

Mosley Electronics Wide variety of multi-frequency Yagis, Verticals, and Dipoles as well as other single and multi-frequency configurations to meet specific requirements. Specialist in antennas, supports and moving of medium-large sized radio antennas, professional rotators, masts, towers, and accessories. Also have a unique multiband vertical which can combine operation on multiple HF frequencies as well as provide high gain on 50, and MHz in a single antenna. Offer HF Dipoles and verticals, VHF UHF Yagi, collinears and other beam antennas, elical antennas,quagi,moxon, and portable antennas, tripods mounts and fiberglass poles [ Hits: Votes: 2 Rating: 10 ] Sommer Antennas - Sommer Antennas has been a manufacturer and producer of quality amateur radio antennas and antennas for professional use for more than 20 years.
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By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. I understand that MW broadcast stations use vertical antennas because that polarization works much better for groundwave propagation. But in amateur radio, I would assume the focus for communications on the HF bands would be via ionospheric propagation, where the polarization doesn't matter a great deal.
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