What is the gain difference between vertical and horizontal Yagi?
A 2-meter 3-element Yagi 5 wavelengths up shows a gain differential of about 1.5 dB between vertical and horizontal orientations. Moreover, because vertically oriented linear antennas are more dependent on ground quality than horizontal antennas, the degree of gain deficit will vary with the ground quality.
How does a vertical Yagi antenna work on a roof?
First, it attaches the antenna to the mast in a vertical orientation and second, it moves the antenna away from the mast so that there is no interaction between the metal mast and the antenna elements. Here is the antenna staged without the rotator, prior to installation on the roof.
How tall is a 2 meter vertical Yagi beam?
Assemble the Antenna, Mast, and Rotator. Next, attach all wires, coax, and guy lines while the antenna is in reach. Lifting the completed assembly to mount it in the tripod. I lined up the whole assembly and carefully lifted it into the tripod mount. If I ever do this again, I will have a helper! The Hex Beam is 33 feet up.
What should the antenna height be for a 3 element Yagis?
Arrayed over good, but not perfect ground, the gain is typical for 3-element Yagis 1 wl up. The quality of ground makes a small and operationally insignificant difference in the antenna’s gain. Larger variations show up as the antenna height is changed between, say, 0.5 wl and 2 wl.
What are the elevation angles of a Yagi antenna?
For convenience, the following table provides the elevation angles of the first lobe, usually the strongest, and second lobe for horizontal antennas at heights of 0.5 wl up to 2 wl. The table gives elevation angles in whole numbers for two reasons.
Which is the correct orientation for a Yagi?
Here we have introduced the earth and have placed our Yagi over it in two different orientations. On the left, the plane of the antenna (the E-plane) is parallel to the earth and we call the orientation horizontal. On the right, the plane of the antenna is at right angles to the earth and we call the orientation vertical.
How much does a 2 meter Yagi antenna cost?
The next thing I thought about was improving the antenna. 2-meter yagi beam antennas are very reasonably priced, and I found the Diamond A144S10 Base Station Yagi Beam Antenna for under $95.00. It has 11.6 dBi gain, so should work well.
https://www.youtube.com/watch?v=i_aLP59zGPc