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Extra Class (Element 4) Question Pool
Jul 1, 2024 ... Which of the following determines ground losses for a ground-mounted vertical antenna operating ... A multi-band trap antenna. C. A phased array ... Learn More
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HF Trap Antennas
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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A Compact 20-Meter Vertical Dipole for Stealth and Portable ...
Jun 30, 2019 ... Steve edited the book Inter- national Antennas, published in 2017 jointly by ARRL and the Radio Society of Great. Britain (RSGB), and he wrote ... Learn More
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The ARRL International DX CW Contest Is Just One Week Away!
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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Ground-plane Antennas for 144, 222 and 440 MHz
The vertical portion of the antenna is made of #12 copper wire soldered directly to the center pin of the SO-239 connector. Fig 24—Dimensional information ... Learn More
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Do You Need an Antenna Tuner
radio-just like a light bulb is a load for the energy supplied by a battery. 70 0572. Most amateur transceivers are designed to work with a load impedance of 50 ... Learn More
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2006 ARRL RTTY Roundup
Jan 9, 2006 ... 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 Q&D Multiband Antenna
It requires manual adjustment for band change in addition to the radio's built-in tuner. The antenna was mounted on an iron railing around his pool. Radials ... Learn More
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The DBJ-1: A VHF-UHF Dual-Band J-Pole
VHF/UHF Antenna,” QST, Sep 1994, pp 61-. 62. Page 2. From February 2003 QST © ARRL to a low feed point impedance suitable ... Learn More
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Ohio Hams Discover, Fix "Ditters" on 40 Meters
Oct 29, 2008 ... He also had his HF radio, an all-band screwdriver antenna, a ... "We checked out the backyard and saw a 4-band trapped vertical antenna. Learn More
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