How tall should my ham radio tower be?
Essentially, the antenna tower must rise no more than 1/100 the distance from the tower to the nearest edge of the runway if the runway is greater than 3200 feet long. If the runway is 3200 feet or less, the tower height may extend up to 1/50 the distance to the nearest edge of the runway.
How high should a ham radio antenna be?
A beam type of antenna at a height of 70 feet or more will provide greatly superior performance over the same antenna at 35 feet, all other factors being equal. A height of 120 feet or even higher will provide even more advantages for long-distance communications.
Where do you mount ham antenna?
You will get the best performance if you can mount your ham radio antenna in the middle of a flat, metal surface, like a hood or vehicle roof. Having your antenna on top of the roof will give you the best signal performance, but it will come into contact with low hanging objects more often.
Do ham radios use towers?
While ham radios do broadcast in all directions, amateur radio enthusiasts usually do not use their radios like a disk jockey would at a radio station. These repeaters borrow antenna space from TV-station-tower owners on top of mountains and high buildings to receive and re-broadcast signals to extend the range.
How high should a 6 meter antenna be?
As stated earlier, most experts feel that an antenna height of 30 or 40 feet (9 to 12 meters) is optimum for 6 meters.
How far apart should ham antennas be?
The easy answer is that you should maintain a minimum mounting distance of at least 1/4 wavelength apart for the lowest frequency antenna within the same horizontal plane. For VHF antennas, that translates to roughly 19 inches.
Does a mobile ham radio antenna need to be grounded?
(1) GROUNDING ANTENNA: Obtaining a good ground is very important to any HF mobile installation. No matter where your antenna is mounted, it is highly recommended you run a heavy copper strap or braid (1″ to 3″) between the body and frame of your vehicle.
What’s the best height for a ham tower?
Going higher is better for 40m or 80m. One reason so many hams have 70 foot towers, and the most popular self-supporting models for many years were all about 70 feet tall (LM-470, etc) is that’s the height 20 meter operators wanted.
How tall does an antenna tower have to be?
Essentially, the antenna tower must rise no more than 1/100 the distance from the tower to the nearest edge of the runway if the runway is greater than 3200 feet long. If the runway is 3200 feet or less, the tower height may extend up to 1/50 the distance to the nearest edge of the runway.
How tall does an antenna need to be for a heliport?
Similarly, for the shorter runway case, if you are 10,000 feet from the runway the tower may rise 10,000 x 0.02 = 200 feet. With a heliport, the slope defining the maximum antenna height is 25:1, or the antenna may be 1/25 of the distance to the nearest edge of the heliport.
Can a wind turbine be used as a ham radio antenna?
To be used for Ham radio antennas or wind turbines. It is constructed of 2 lengths of “Box” steel inserted inside of each other. You can tilt the tower down to work on your antenna or wind turbine at about 4’off the ground. You then would tilt it up using the hand winch.