gate antenna
10 links
- ZR6KMD 2M Beam Antenna
- This design was adapted from an article in the ARRL Handbook and built with simplicity and
duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
[ Hits: 2222 | Votes: 1 | Rating: 2 ]
- J Beam antenna for 2 meters and up
- Article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988
[ Hits: 2998 | Votes: 0 | Rating: 0 ]
- LoRA Collinear Antenna
- A simple 6dBi Collinear Antenna for LoRa compared to the Lorank8 gateway default antenna.
[ Hits: 65 | Votes: 0 | Rating: 0 ]
- Folded dipole antennas: terminated vs un-terminated
- As the name suggests, it is simply a dipole with the tips folded towards each other. In this case, a full-wave dipole. The span of a standard folded dipole is aprox 0,5 lambda. In this article the author investigate on differences between un-terminated vs terminated folded dipole antennas.
[ Hits: 493 | Votes: 9 | Rating: 6.78 ]
- The versatile end-fed wire
- Benefits and limitations of an end feed antennas.
By Peter Parker VK3YE - first appeared in Amateur Radio, June 1998
[ Hits: 8759 | Votes: 5 | Rating: 7 ]
- Antenna Manufacturing: How to Prevent Galvanic Corrosion
- Galvanic corrosion, a destructive process triggered by dissimilar metal contact in a corrosive electrolyte, poses a significant threat in antenna manufacturing. With aluminum and stainless steel components commonly involved, unaddressed corrosion can lead to white particle accumulation, causing long-term damage. Awareness of the galvanic series and the application of protective coatings like Alumslip can mitigate this pervasive issue, ensuring a prolonged antenna lifespan.
[ Hits: 54 | Votes: 0 | Rating: 0 ]
- Homemade antenna mount
- Homemade Jeep Tailgate Antenna Mount for use with a Swing Out Tire Carrier
[ Hits: 949 | Votes: 0 | Rating: 0 ]
- Chokes and Isolation Transformers for Receiving Antennas
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- Chokes and isolation transformers are essential for receiving antennas to mitigate common mode current, which induces noise and interferes with signal quality. Common mode chokes, formed by winding feedline through ferrite cores, block unwanted current effectively. Proper selection of core material and winding turns ensures resonance near the operating frequency, reducing interference. Isolation transformers further minimize interference, crucial for multi-transmitter stations.
[ Hits: 52 | Votes: 1 | Rating: 9 ]
- Antennas for confined spaces
- Antennas for restricted lots, apartments and indoor antennas by VK3YE
[ Hits: 1076 | Votes: 3 | Rating: 9.67 ]
- Nec2Go
- Powerful antenna modeling tool using NEC 2 computing engine. Nec2 specifically provide users, either those experienced with the Nec2 processes, or for those who are neophytes but want to model their own antennas.
Nec2Go uses a simplified process for defining the antenna structure and then providing view of the structure, plots (2D and 3D) and other significant data that is pertinent to the design.
This simplified process uses an edit file with equations for all definitions.
[ Hits: 1953 | Votes: 1 | Rating: 5 ]
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