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The Lazy H does not seem to exhibit any gain over a dipole in thereal world
Final verdict on the center fed Lazy H antenna for 10 meters... I really wanted to like this antenna. I really wanted it to work as stated in the various handbooks. I have checked and re-checked the measurements, and I have double checked the connectivity to make sure the top and bottom elements were being fed in phase. The bottom left element was connected to the top left element. The bottom right element was connected to the top right element. I have done countless A/B/C test with a dipole, an extended double zepp, and the Lazy H all broadside to the same direction on 10 meters. This antenna was specifically cut for 10 meters, and it was installed for horizontal polarization as shown in the ARRL handbook at heights of 40 feet and 50 feet at the top wire. I double checked everything, but the final verdict is not what I had hoped. Here it is; In the real world on 10 meters the Lazy H antenna with four half wave elements on 10 meters (two collinear elements on top and two collinear elements on the bottom), half wave spacing between the top and bottom horizontal elements, center fed with 450 ladder line all the way back to the antenna tuner, using a 450 ohm ladder line phasing line to connect the top and bottom elements with no twist was consistently out performed by a 10 meter extended double zepp facing the same direction even when the Lazy H antenna was given a 10 foot height advantage over the extended double zepp. On many occasions the Lazy H was also out performed by the 10 meter dipole dipole. I have not tried the end fed Lazy H design with the 1/4 wave matching stub and the 180 degree twist in the phasing line. On a positive note, the extended double zepp antenna with a 450 ohm matching section down to a 1:1 balun and then 50 ohm coax is a solid performer, and it consistently out performs a dipole and the Lazy H broadside to the antenna. Michael Rawls KS4HY |
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