21 meg yagi

28 MHz 3 elements Yagi - OZ2OE Technical pages, a 3 element 28 MHz light weight Yagi for 10 meters band

A double dipole for 14 and 21 MHz - A double dipole for the 20 and 15 meters band in french

7 element Yagi for 20 Meters band - A 7 elements yagi beam monoband antenna for 14 Mhz by VE3GK

2 elements YAGI for field day operation - A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations

7elements yagi for 70MHz - 7ele homemade DK7ZB yagi for 70MHz

Dualband yagi for 50 70 Mhz - PA5DD version of the dual band yagi antenna for 50 and 70 Mhz

Dual band 6m/4m Yagi - This antenna was optimized with the goal to minimize any changes in 6jxx6 impedance/lobes. The result is a 7 el on 70 MHz with a little loss of gain comparing with the other monobands of the same lenght.

4 element yagi for 6 meters - Project plan for a 4 element yagi beam for 50 Mhz in spanish

6 element UHF Yagi antenna - 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.

4Z5NY Antenn calculators - The formulas for a dipole and vertical, j-pole, double square, Yagi and EH antenna calculators

Feeder Radiation - Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes

HF Magnetic loop antenna - VK3YE magnetic loop antenna plan that cover 7 Mhz to 20 Mhz and shortening loop can work on 21 Mhz.

The Thick Loop - The performance of a small magnetic loop can be improved constructing it larger, thicker or both. The antenna is covering from 12 Megahertz to 32 megahertz and adding a 156 Pico farads ceramic capacitor it resonates on the 40 meters band. by PY1AHD

Four Band Antenna - This 4 band up and outer antenna covers 21 to 10 Mhz and can work on 28 Mhz as well by W9SCH

ZX 6-6 50 MHz Yagi Antenna - Antenna dimension, diagram and simulation of the ZX Antennen ZX 6-6 Yagi for VHF UHF by DF9CY

Yagi-Uda Antenna Priority listing - The Yagi-Uda antenna, information on basic design, project and measure of Yagi-Uda antenna, include free repository/sample of beam antenna.

KA0PSE Beacon - On 28.219 Mhz it puts out a whopping 3.85 watts into an inverted V dipole at about 30 ft.

WE4S 10 Meter Beacon 28.221 Mhz - Beacon website of WE4S, Grady Donaldson, located in McDonough, GA. EM73TM.

ZS6DN_3 - A view of the NCDXF Multiband beacon and a cluster of stacked yagi antennas.

N9YDZ Beacon - N9ydz beacon brighton, illinois, grid square em48 on 28.210 Mhz

IW0HK / B - Running from Rome area at 28321 Mhz

4S7B Sri Lanka Beacon - IARU NCDXF Beacon in Sri Lanka 4S7B working on 14.100, 18.110, 21.150, 24.930, and 28.200

Antennae Depot - HF Yagi and Vertical antennas for Amateur Radio. Full line of mono-band HF antennas (40, 20, 15, 10 m) high-efficient yagi beams from Russia

Sandpiper Aerial Technology LTD - Sandpiper has been designing and manufacturing aerials for over 25 years. Offer HF Dipoles and verticals, VHF UHF Yagi, collinears and other beam antennas, elical antennas,quagi,moxon, and portable antennas, tripods mounts and fiberglass poles

Power Gride Tubes - Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.