Can I put an antenna in a tree?
Trees make excellent antenna supports. A heavy ground connection from a ground rod to the antenna mount can be installed along with the feedline, and the usual grounding practices that are done on tall antenna structures can be done. As mentioned, keep in mind that trees sway and move around, and they grow.
How high should my HF antenna be?
My general rule of thumb and simplified answer is to get them 30 ft. above the ground. That’s the point where most HF antennas start to come alive. Anything higher is extra icing on the cake sort of thing.
Do trees block antenna signal?
Large trees can interfere with TV antenna reception. Tall structures such as trees interfere with the signal by obstructing the signal waves or reflecting them off their foliage. Trees with wet leaves in rainy condition can reflect even more of the signal.
Can you mount a TV to a tree?
By bolting in your antenna to the top of the tree you are not risking the health of the tree. You will want to measure the distance between the two holes on the mount of the antenna. Generally they are about three inches apart. You want to drill your bolts in slightly to get them started so you can bolt in the mount.
Is the absorption by trees a problem at HF?
Absolutely. Without the specifics of yours trees, and your antenna, we can’t say exactly what effect trees will have, but it’s a fair guess that the absorption by trees will be somewhere between negligible to significant but probably not drastic. Part of the reason trees aren’t a huge problem is that at HF, they are electrically small.
What happens if you put an antenna over redwoods?
So, get your antenna as high as you can, but if you don’t have a tower sticking above the redwoods, don’t worry. Your antenna will still work. The greenery will always distort, but you’re right, the distortion will be less as you increase the height of the dipoles above the greenery.
How tall should an antenna be on top of a tower?
The best solution is if you can put a fifteen or twenty foot pole on top of something that is already tall. Ideally, the antenna should be about one wavelength (eleven or twelve feet) from any other object (except for the pole it is mounted to).
How many watts are allowed in a vertical antenna?
The vertical part of the signal is not counted, so you “get it for free.” so you are allowed to put about 250 watts TPO into a single circularly polarized antenna, and it is considered to be 100 watts ERP. But of course, the vertical signal is still going out and giving signal to your coverage area.