hf antenna design
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Antennas : 2M- Super Trombone Antenna
- Tombone VHF antenna for 146 MHz ad designed by YB8EIP
[ Hits: 2738 | Votes: 8 | Rating: 5.75 ]
- 40m Quagi Beam
- A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF.
[ Hits: 1058 | Votes: 4 | Rating: 7.75 ]
- Practical HF Log Periodic Antennas
- This QST article describes the electrical and mechanical design process for two LPs that cover the HF bands from 10-30 MHz
[ Hits: 910 | Votes: 1 | Rating: 5 ]
- Horizontal Loop Antenna Experiments
- The HF horizontal loop has been around for many years now. This article includes a YouTube video and discusses the reasons for looking at this antenna, its design, and its installation. There are some on-air comparisons against three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna.
[ Hits: 926 | Votes: 5 | Rating: 8 ]
- HF Multiple Dipole Antenna
- This article describes the design and simulation of a multiple dipole antenna for the HF band, using the software MMANA-GAL. The antenna will be designed to operate in the 10, 20, 40 and 80 m bands
[ Hits: 820 | Votes: 1 | Rating: 4 ]
- OCF Dipole
- This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
[ Hits: 2558 | Votes: 7 | Rating: 9.43 ]
- Portable 2 meter Yagi
- Building a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use.
[ Hits: 1433 | Votes: 11 | Rating: 6.48 ]
- A lightweight Yagi for 2 m
- A portable VHF yagi antenna designed for SOTA operations based on the orignal DK7ZB concept.
[ Hits: 753 | Votes: 7 | Rating: 5.15 ]
- 2 Meter 5 Element Quad
- A five element quad antenna for 144 MHz DIY Project.
This 2 Meter 5 Element Quad antenna was modeled using EZNEC, with a boom from a UHF TV antenna and CPVC pipe for spreaders. Constructed for 146MHz, it exhibits a gain of 10.7dB and an impedance of 75 ohms. Real-world results surpass the HT antenna, reaching over 20 repeaters up to 75 miles away. The design, costing around $10, employs simple tools for assembly.
[ Hits: 1884 | Votes: 9 | Rating: 6.23 ]
- The Quagi Antenna Turns 40
- It has been 40 years since the VHF-UHF Quagi antenna--a combination of the desirable features of a Yagi and a cubical quad--was developed and the design was first published in the newsletter of the Southern California VHF Club, a forerunner of today's Western States Weak Signal Society.
[ Hits: 467 | Votes: 1 | Rating: 10 ]
- VHF-UHF Portable Yagi-Uda Antenna
- Homebrew UHF VHF portable Yagi-Uda antenna design and construction notes for satellite operations
[ Hits: 1240 | Votes: 2 | Rating: 3 ]
- Z-Match 100 and mini Z-Match
- This is a one for all antenna tuner with wide range tuning on all the HF bands. The tuner is based on a G3WQW design. DIY project by PD7MAA
[ Hits: 923 | Votes: 0 | Rating: 0 ]
- VHF / UHF Antenna Design
- A dipole for 2m, 4m, 6m band an hamdwritten note for a homemade vhf antenna that can be tuned across the VHF band
[ Hits: 1690 | Votes: 10 | Rating: 7.08 ]
- A HF dual band trap antenna
- A dual band coax trap antenna designed to work on 20 and 30 meters or on 20 and 40 meters band by Phil W0XI
[ Hits: 930 | Votes: 4 | Rating: 6.5 ]
- W3DZZ - 80 to 10 meter antenna
- A schematic design of the W3DZZ antenna in portugues with description of trap building
[ Hits: 2578 | Votes: 7 | Rating: 6.72 ]
- VHF 10 element Yagi
- A ten element ultra-lightweight yagi beam antenna for 144 MHz based on YU7EF design concept
[ Hits: 830 | Votes: 7 | Rating: 6.29 ]
- JK Antennas
- US amateur radio antenna manufacturer, design and build monoband, dual band and multiband Yagi Antennas for HF bands as well as receive antenna systems
[ Hits: 726 | Votes: 1 | Rating: 10 ]
- Broadband Power Technology
- Active Receiving Antennas, designed for reception of shortwave, mediumwave and longwave signals and VHF/UHF signals
[ Hits: 337 | Votes: 0 | Rating: 0 ]
- Ham Radio Antenna Installation on a Van
- The RoadTrek design presents some unique challenges to us hams. Here an example of a VHF and HF antenna installation on a VAN
[ Hits: 1070 | Votes: 2 | Rating: 5.5 ]
- Outdoor HF Antenna Switch
- The antenna swtich was designed to assist with antenna comparisons mande with a IP56 rated box
[ Hits: 773 | Votes: 0 | Rating: 0 ]
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