vhf gain
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Antennas : 2M- 2m VHF antennas with high gain
- 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth.
These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.
[ Hits: 8261 | Votes: 12 | Rating: 7.75 ]
- Slim Jim 2m Vertical
- This VHF 145 MHz antenna is easy to build and with no radials. It shows equal gain of 5/8 lambda. It is light weight, you can hang it somewhere (on a tree may be) and work.
[ Hits: 3390 | Votes: 3 | Rating: 6 ]
- 3 elements VHF yagi antenna
- 3 elements VHF Yagi homebrew antenna designed with YAGIMAX 3. Maximum forward GAIN is about 8,17 DBi. This antenna offering an effective radiation power 4 times greater of the transceiver output by SV1BSX
[ Hits: 14036 | Votes: 59 | Rating: 4.51 ]
- 6dB colinear VHF antenna
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- Building details of a VHF colinear antenna with 6 db gain
[ Hits: 63342 | Votes: 107 | Rating: 5.56 ]
- VHF Collinear Antenna
- This antenna will cover the 2 meter Ham Radio frequencies. This collinear antenna has a total gain factor approx 6 to 7dbd on two meter band
[ Hits: 2291 | Votes: 6 | Rating: 4 ]
- 7dB VHF Collinear Antenna
- This project is about a cheap way of building a colinear antenna for VHF 145MHz, and having about 10dB more gain than that little 1/4-wave magmount
[ Hits: 4739 | Votes: 15 | Rating: 6.41 ]
- Exploring The J-Pole Antenna
- The J-Pole antenna is a common omnidirectional antenna used in amateur radio, particularly on the VHF and UHF bands. This article is an attempt to explore how the J-pole antenna transforms feed-line impedance to free-space impedance, all the while providing gain found only in the more expensive commercial products.
[ Hits: 142 | Votes: 0 | Rating: 0 ]
- Magnetic Loop antenna for VHF
- A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna
[ Hits: 731 | Votes: 9 | Rating: 5.99 ]
- Home Brew VHF UHF dual band antenna
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- Contructing precedure and tune up of a dual band mobile antenna. This antenna is just a 1/4 wavelength resonator for both UHF and VHF band. It provides no GAIN as compared to other multi-section design.
[ Hits: 36840 | Votes: 38 | Rating: 4.36 ]
- The Moxon Beam Antenna
- Notes on moxon antennas for VHF and HF bands. Main characteristics, gain and f/b ratio by DK7ZB
[ Hits: 1599 | Votes: 366 | Rating: 7.64 ]
- Dish antenna
- Dish antenna and its theory and design for high performance applications such as satellite transmission and reception as well as microwave links.
Parabolic Reflector Antenna: Dish Antenna
The parabolic reflector antenna which is often called the dish antenna provides an antenna solution applicable for VHF and above where high gain and directivity are needed for all type of radio communications and radio reception.
[ Hits: 1026 | Votes: 0 | Rating: 0 ]
- Build the Slim JIM Antenna
- A Unique VHF Antenna with gain over a J-Pole
Jose I. Calderon, DU1ANV
[ Hits: 1289 | Votes: 0 | Rating: 0 ]
- Slim JIM Antenna by DU1ANV
- Build the Slim JIM Antenna, a unique VHF Antenna with gain over a J-Pole Jose I. Calderon, DU1ANV
[ Hits: 841 | Votes: 6 | Rating: 4.5 ]
- CSVHFS Antenna Gain Measurements
- The Central States VHF Society has conducted Antenna Gain Measurements since its inception in 1967. Comparisons between commercial and homebrew antennas, between different homebrew designs, and between different commercial designs. Mostly VHF UHF and up antennas.
[ Hits: 1333 | Votes: 3 | Rating: 7 ]
- VHF/UHF Yagi Antenna Design
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- Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
[ Hits: 147401 | Votes: 1105 | Rating: 6.95 ]
- H Doublebay Antennas
- Cheap and EZ to build Bi-Directional VHF & HF antennas with gain
[ Hits: 2196 | Votes: 6 | Rating: 3.67 ]
- Compact and effective 2m 70cm antenna
- Antenna was designed for SO-50 satellite operation but can be used for any VHF/UHF activity.
It's a mix of a Moxon Antenna and a Yagi antenna.
It has gains 4 dBd on 2m and 6.5 dBd on 70cm bands and it is fed via single 50 Ohm cable.
[ Hits: 2575 | Votes: 1 | Rating: 10 ]
- VHF-UHF Long Boom Very High Performance Antenna Designs
- Experimental Long Boom Antennas - CP, LPDA, multiband with several NEC Files for 50MHz 144MHz 222 MHz 432MHz but also 902MHz and 1296 MHz Antenna projects.
Includes also for each antenna model, in a general comparison table each antenna characteristics including Directive Gain, G/T, E-F/R, H-F/R abd Boom Length. This is a great value comparison table of several commercial and home made VHF UHF antenna projects.
[ Hits: 188 | Votes: 1 | Rating: 10 ]
- Hy Gain
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- HF UHF/VHFAntennas, dipoles, accessories and rotators
[ Hits: 49135 | Votes: 35 | Rating: 6.41 ]
- Troposcatter Meteorscatter Ionoscatter
- Troposcatter, 50 MHz meteor scatter, ground gain for eme, radiation angle, by OZ1RH
[ Hits: 845 | Votes: 4 | Rating: 6.5 ]
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