Is a delta loop directional?
The Delta Loop is bi-directional like the dipole and has a figure of 8 radiation pattern. It has a small amount of gain, perhaps 1dB or so over a half wave dipole.
Where do you feed a delta loop?
Feeding the Delta slightly up from the corner, around 1/4 of the side length up, results in vertical polarization. Note the current minimum is at the apex, and in the middle of the bottom. The often used “corner feed” skews the current and polarizations.
How do you feed a full wave loop antenna?
The feed point impedance of a full wave loop antenna is theoretically in the vicinity of 100 ohms and requires a 2:1 impedance transformer to match with 50 ohm line or a 1.5:1 transformer to match with 75 ohm cable. These transformers are unbalanced (coax input) to balanced (loop output) (also called 2:1 baluns).
How long is an 80m loop?
Length of a full-wave 80-meter loop is about 270 feet long (1005 divided by frequency in MHz) or about 67 feet per side.
What is the best portable delta loop for 20 meters?
W6ZO Portable Delta Loop for 20 meters. YLRADIO – Full wave delta loop. This Delta Loop is a three-sided antenna suspended high in the air by vertical supports, such as tall evergreen trees. Recommended height is 40 feet or more at highest point, but higher is better.
How many meters long is a delta loop?
160 meters. 528.947 feet. If you have been thinking about a Delta loop in place of a dipole, you should seriously consider it. It does take up some ample real estate even in it’s 17 or 20 meter flavors compared to a dipole, but in my case it has been well worth it.
What size delta loop antenna do I Need?
Some elbow grease is required. I highly recommend the 20 meter delta loop antenna if you’re set up for it. I am very satisfied with the outcome. I may try a 40 meter loop in the future. Will this delta loop work you ask?
How to make a full wave delta loop?
The formula for a full wave delta loop is 1005/F. This is 1005 divided by whatever frequency you are going to talk on. Since the 12 gauge single strand copper wire worked well with my 40 meter half wave dipole, I opted to go with it again. I chose 14.200 MHz as my designated frequency.