Woods, Antennas, what works best ?

[shocker03p4]

So my house is on a 4-acre wood, big tall trees, and was working on what is going to work best for an antenna. What is everyone's thought? Thks

tech license on the way,

2-meter repeater 25 miles in either direction
70 also

10-meter simplex and some learning CW, so 28.530 freq up.

I am thinking of D-pole and Yagi for the 2 and 70. Just wondering how each type of antenna handles interference with the Trees, I am actually below the leaf line with My TV. Uhf and Vhf

Anyways

Jeff

 

[K6GBW]

It's all going to come down to what you are trying to accomplish. Are we talking trees that are 25 feet, 50 feet or 100 feet? What kind of trees? Pine needles soak up UHF and VHF work better around them, but other types of trees don't affect radio waves as much. If you are trying to hit VHF Repeaters out to 25 miles then the answer is to get the antenna as high as possible. You can do a tower that will get it as high as you can afford, or you can go with a mast on the roof. The mast can be as short as a few feet so that the antenna is just above the roof line or higher if you guy it If you have trees directly next to your house you can actually attach a dual band antenna to a nylon line and pull it up into a tree suspended from a branch. I'd use a radio with at least 50 watts as you might need the extra power to clean up the signal into those Repeaters. Use good quality coax as well.

Are the Repeaters at significant elevation or at about the same altitude as you? The higher they are the less gain you will need. Lots of questions to be answered before we can give you any real meaningful input.

 

[shocker03p4]

It's all going to come down to what you are trying to accomplish. Are we talking trees that are 25 feet, 50 feet or 100 feet? What kind of trees? Pine needles soak up UHF and VHF work better around them, but other types of trees don't affect radio waves as much. If you are trying to hit VHF Repeaters out to 25 miles then the answer is to get the antenna as high as possible. You can do a tower that will get it as high as you can afford, or you can go with a mast on the roof. The mast can be as short as a few feet so that the antenna is just above the roof line or higher if you guy it If you have trees directly next to your house you can actually attach a dual band antenna to a nylon line and pull it up into a tree suspended from a branch. I'd use a radio with at least 50 watts as you might need the extra power to clean up the signal into those Repeaters. Use good quality coax as well.

Are the Repeaters at significant elevation or at about the same altitude as you? The higher they are the less gain you will need. Lots of questions to be answered before we can give you any real meaningful input.

Thanks

Oak trees no pines. 40 -80 not much under brush

Reapers about 40 ft higher the me

2 m. 40 meter.


Now 10 meter

Thks

 

[K6GBW]

You should be fine with a mast on the roof of the house with a medium gain antenna. Something like the Comet GP3 or similar. The higher the antenna the better. If you have a two story house then a five foot mast would be fine. For a single story I'd look at a 10 foot mast and guy it. Use LMR400 coax and a 40-50 watt base radio and it should be fine. The next step would involve a tower and that's getting into some money.

 

[shocker03p4]

Thank sir i appreciate the help. i have a tower just have to pull it out of the barn and set it up. but with a DI-pole options i wasn't sure which way i should go. one last Q

di-pole best to move out in the open or against the house.

 

[K6GBW]

A dipole for VHF/UHF is kind of rare. Are you sure that's what it is? If it's some sort of antenna designed to be mounted on the end of a mast vertically then its probably not a dipole. Either way, getting it up high is the best answer. As for where to put the tower, it really doesn't matter. The only caution is make sure it's mounted correctly. Towers are heavy and can do a lot of damage when they fall. I'd find someone that really knows how to do it to help you. This is one case where you don't want to make a mistake.

 

[shocker03p4]

Well j-pole copper pipe dyi on roof 30 35 ft up seems to be working. But seem getting 1.5 swr power good. Hooked direct to the antenna . Should I look at adding anything else to help it's performance.
Thks

 

[hill]

28.530 freq

A tech can't use that frequency. See the attached band chsrt.

 

[shocker03p4]

A tech can't use that frequency. See the attached band chsrt.

28.300 to 500 sorry missed typed

Soon will be able to though