Search results
Query: eme
Links: 370 | Categories: 9
This query is too generic. Please try adding an additional term to focus your research.
-
-
Multimode suite, feature logging, Internet interface to CXCluster, Smart multi-mode controller software, contest, APRS, and PSK31 via Sound card. Free and Commercial version available. -
A 40 meter band two elements yagi beam with a 6mt boom with pictures and drawings -
2-Element parasitic Yagis for the Shortwave-Bands 10m-30m -
17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC -
"ARES trains and organizes Hams to provide emergency communications to ""Served Agencies"" such as FEMA, National Weather Service, Red Cross, Salvation Army, Hospitals, and others. This site describes ARES goals and methods and structure." -
-
OZ2OE Technical pages, a 3 element 28 MHz light weight Yagi for 10 meters band -
-
Picture and construction details of a 5 element 20 meter monobander -
The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB -
The Clemens match is easy to make and reliable, and is preferable to a single Gamma match as it is balanced -
A homebrew project for a 2 meter 4 element yagi beam antenna by 2E0HTS -
A 3 element yagi beam for 40 meters band -
Simple gain antennas for the beginner, a 2 element HF yagi antenna -
Dimension and formula for a 4 element QUAD antenna for the 10 meters band -
Radio Incident Command Kit project is described in this article loaded with many pictures and go-kit composition. -
5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals -
Details of both three element quad and my portable quad -
A 5 elements yagi antenna for 10 meters band project, plane and picture of the EF105A by YU7EF -
One of the most important considerations when designing and building a Yagi antenna is the method used to attach the elements to a boom. This is true because the boom influences the electrical length of the elements. In this article JH Reisert explain with drawings techniques on mounting yagi antenna elements to a boom -
An option for restricted and limited space, to operate the six meters band with an indoor three elements yagi antenna by Brian Williams -
-
A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18. -
These yagis and groups were designed with YO7.23 from K6STI and checked with EZNEC from W7EL. With a gain of 14/17/20dBd they have a good relation between gain and mechanical problems. -
-
Article on PSK modes. PSK for Beginners Has RTTY's Replacement Arrived? -
-
2 Element Cubical Quad Antenna for 28 MHz by DL7JV in german -
Online javascript antenna calculator designed to give the critical information of a particular beam antenna, in this case a seven element Yagi, for the frequency chosen. -
A simple to build Yagi 2 element antenna for 15 or 20 meters band by 9m2mso -
Dedicated to building bridges between the EME, SETI and Radio Astronomy Amateur Interest Groups. -
EF403 is a 3 element yagi antenna for the 40 meters band with high gain and F/B Ratio -
Quagi 8el 70cm improved 13.77dBi by IK1HGE -
An homebrew project for a 3 elements yagi monoband antenna for the 20 meters by 9M2MSO -
-
ON6MU optimized 6/9 element vhf yagui antenna with antenna schematic plan and pictures of homebrewed samples. -
-
A 7 elements yagi beam monoband antenna for 14 Mhz by VE3GK -
This page describes a simple way to determine the main RF characteristics of a Wifi (IEEE802.11b/g wireless LAN) antenna. -
VHF Optimized Yagi Antenna for the 6-meter band (50 Mhz) by ON6MU -
FTBVR5K is a memory management program for the Yaesu VR-5000 scanning receiver. -
-
This project outlines the construction of a 3-element reversible quad antenna specifically designed for the 40-meter band. The materials required include pushup towers, pressure-treated posts, insulated wire, and various electrical components such as relays and a balun. The construction process is straightforward, beginning with the installation of the posts in a straight line, followed by the assembly of the antenna elements and their elevation to the desired height. The antenna's design allows for directional signal reception, making it ideal for operators looking to enhance their communication capabilities on the 40-meter band. The project includes detailed instructions on tuning the antenna for optimal performance, ensuring that operators can achieve the lowest SWR possible. Additionally, the design can be adapted for other bands by extrapolating dimensions, providing versatility for amateur radio enthusiasts. Overall, this reversible quad antenna project is suitable for both beginners and experienced operators, offering a practical solution for improving signal strength and directionality in 40-meter communications. -
-
-
Schematic Manual of the 3 element Yagi antenna by ECO antenne -
by Dr. D.T. Emerson, National Radio Astronomy Observatory (NRAO++). Antenna Compendium Volume 4, pp 64-68, 1995, published by the ARRL. -
Java free space pathloss calculation and EME -
2 element reversible verticals, small footprint, big results.