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HF Beams
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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Estimated Field Strength from Amateur Radio Stations -- ARRL #1
The transceiver used is an ICOM IC-781. The 3.5-MHz antenna is a half-wave dipole, at a height of 18 meters. The 7.0 MHz antenna is a 2-element Yagi array ... Learn More
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A Portable 2-Element Triband Yagi
Nov 1, 2001 ... VE7NSR, the North Shore Amateur. Radio Club, has used this antenna sloped at about 45° for the last two years on 20 and 10 meters on Field Day ... Learn More
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Evaluating Compliance with FCC Guidelines for Human Exposure to ...
Amateur radio organizations and licensees are encouraged to develop their own more detailed evaluation models and methods for typical antenna configurations and. Learn More
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Radio Operating from Summits
Apr 21, 2020 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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2007 ARRL International EME Competition
Nov 25, 2007 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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New Tower, Antenna Modifications for W1HQ
Aug 19, 2008 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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A $20 HF Mobile Antenna
Apr 1, 2000 ... (If available, you can use your rig's built-in SWR meter; my IC-706 is so equipped.) Key your rig and adjust the power output of your radio for ... Learn More
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Basic Amateur Radio - Simple Gain Antennas for the Beginner
(2.1 M). Basic design data for a 2-element hi-band Yagi antenna. (Gain figures are theoretical.) bandwidth. The highest Q would be ob- tained when using, say, ... Learn More
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My quest for the ham radio equivalent of the “holy grail” – a truly ...
A series matched 40 meter antenna at either 80 or 35 feet meets the 2:1 SWR bandwidth objective, but the goal of SWR at or below. 1.5:1 across the whole band is ... Learn More
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