ham radio satellite antennas
Why small antennas ham radio in the form of satellites?
Is it useful to make the cube-shaped antenna or is it better to have in the same plane (flat)? Is there a method to calculate the size and proportion of vanes? Sorry for the layman, I do not know much on the satellite. (but Shinoloa do not know) Oh, why I ask is I want to be fresh and functional for my flight home.
I think what you saw is called a flat antenna. Now you have something that is vertical and 3-4 horizontal to or at an angle of 45 degrees. The vertical portion is the main part of radiation from the antenna and the horizontal elements are grounded. However, there are many, many types of antennas. I have a library full of books from the antenna, and yet I have only scratched the surface. You a lot of considerations when it comes to antennas: polarization, frequency, type of communication channel, what kind of communications in general and space requirements. Almost all the antennas are a compromise of sorts. As the calculations of a simple antenna input corresponding to a 50 ohm antenna – the type that most of us are familiar with amateur radio transmitters and CBS – just divide by 234 megahertz frequency, which for the CB radio would be 234 divided by 27 (because is 27MHz) This will give the length in feet. Cut a piece of wire or conduit to this length, and attach the center conductor of the coaxial cable. Plus 3 is cut and attached to the ECU. What you have connected the coaxial cable must be vertical center, and most of the screen is attached to the bottom of the slope with an angle of 45 degrees and spaced 120 degrees apart. I'm still a little confused about your question, but I thought I would give it a go anyway. I've been a ham for 10 years, a listener shortwave and scanner as a fan since I was 8 years. I also have a detailed knowledge about antennas. John AD7VH
Ham Radio AO-51 Satellite Dual Band Portable Antenna by web7days