the arrl antenna book
10 links
- 5 element Yagi antenna for 10 meters band
- This 10 meter antenna is right out of the ARRL Antenna Book. There are 5 elements on a 24 feet boom and it performs well from 28.0 to 28.9 MHz.
[ Hits: 194 | Votes: 2 | Rating: 6 ]
- 2 Meter 10 Element Quagi Antenna
- This antenna was designed by N6JSX Kuby for Transmitter hiding. Fitting the requirements of directionality, high gain, and portability. This antenna was derived from the ARRL Handbook information on Quagi's and Yagi's; in the absence of two meter Quagi information, UHF Quagi dimensions were scaled into 146 MHz use.
[ Hits: 15656 | Votes: 32 | Rating: 7.06 ]
- 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 ]
- A 6m portable 4 element quad
- This antenna is based on a design for a portable 2 element 6m Quad by VE7CA, which is featured in the 19th Edition of the ARRL Antenna Handbook
[ Hits: 6618 | Votes: 21 | Rating: 8.35 ]
- Axial-Mode Helical Antenna Calculator
- Simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.
[ Hits: 2853 | Votes: 15 | Rating: 5.4 ]
- Log-Periodic Dipole Array Calculator
- This LPDA calculator is based on the design procedure as described by L. B. Cebik, W4RNL (SK) in the 21st edition of The ARRL Antenna Handbook.
[ Hits: 483 | Votes: 5 | Rating: 7 ]
- Helical Antenna Calculator
- This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.
[ Hits: 4644 | Votes: 47 | Rating: 5.55 ]
- Log Periodic Antenna Design
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- calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.
[ Hits: 34836 | Votes: 295 | Rating: 6.04 ]
- Understanding Amateur Radio NVIS
- Understanding Amateur Radio NVIS Antennas and Propagation, derived from The ARRL Antenna Book and QST Articles
[ Hits: 942 | Votes: 1 | Rating: 9 ]
- Propagation on 630 Meters and 2200 Meters
- This is a theoretical look at propagation on 630-Meters and 2200-Meters using ray tracing software. It expands on the brief discussion in the ARRL Handbooks.
The Earth's magnetic field affects 630-Meter and 2200-Meter band propagation. Lower ionization reduces absorption, aiding low-frequency propagation. Differences exist between bands, limited daytime sky-wave propagation. Sunrise/sunset show promise, yet mechanisms are unclear. Ducting possible at night in specific conditions. Negative ions enhance propagation. Inefficient antennas and high man-made noise are anticipated. Groundwave propagation is significant on 2200-Meters.
[ Hits: 38 | Votes: 1 | Rating: 10 ]
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