Batboard

Hi guys,


We are currently building a new maintenance complex at our golf course \ softball complex. These buildings are just starting to be built and we are looking for suggestions for mounting our antennas.

Our build is 150’ by 50’ wood frame, metal siding\roof with our office in the south west corner of the building. The office will be fully finished, but we will need to have access to connect the coax to our encoder and radio modems.

Now to the antennas. We have an Antenex fiberglass omni directional UHF that is about 70” long for our paging encoder (irrigation control), we also have a 900 mhz directional yagi that is used with a radio modem (pump station control), we might also have a 2.4 ghz panel someday.

This is the first project we are undertaking that requires all this stuff and we are looking for a system that will last for years to come. Would you recommend running galvanized conduit to the roof for each antenna or just one for all of them? Would you mount the antennas directly on the conduit or on a mast attached to the mast? How about location on the building? Also, how do you recommend terminating the coax inside the building to make it look nice in our office?

Also, while we are running all this line, what type of lightning arrester would you suggest and mounting locations for it? We have the ability, right now, if we want to, to run a copper ground over to where the office will be or we can do it later

I basically, because this is a totally new course, have free range (within reason) to do whatever I would like to, to get this going. I’m open for any suggestions or any other references that you guys have for this project.


Thanks again,

.Michael

There are probably a number of ways to do what your asking. The first question and problem to overcome is what kind of an overhang of the roof is ther on the end of the building? If there is none, then you might be able to obtain some wall mount brackets and use them to mount a mast near the top of the roof on the end side wall of the building. You can purchase a 20 foot long length (that's what they come in) of 1 1/4 or 1 1/2 galvanised, schedual 80 steel pipe. This might be an overkill but you asked the best way.

Don't use TV antenna mounting brackets from Radio Shack. The won't last. Mount the brackets on the side wallof the building. Put one near the top just below the roof and the other about 6 or 8 feet down. Put your stick antenna on the end of the pipe. Mount the yagi say 3 feet below it. Now you can take this masterpiece and put it up. It will take 2 people. One on the roof and another on a ladder working with the mounting brackets. Raise the yagi 3 or 4 feet off the roof and bolt the whole thing down. Just remember to poit the yagi in the correct direction.

Your second choice is to go use some tower sections of say Rohn 25 tower. This will run you some place about $100 a section of ten fet. Been a number of years since I check the price. You will need enough sections to go from the ground and get you above the roof.

Just remember to add a earth ground to what ever support you install for the antenna. This will take an 8 foot ground rod and some copper wire of at least a # 2 AWG size. Make sure you have the needed clamps and lugs to terminate the ends of the wire to bothe the ground rod and the tower or mast.

This grounding information can be located in the Nationa Electrical Code in section 250.

Jim



[quote="HPFD425"]Hi guys,


We are currently building a new maintenance complex at our golf course \ softball complex. These buildings are just starting to be built and we are looking for suggestions for mounting our antennas.

Our build is 150’ by 50’ wood frame, metal siding\roof with our office in the south west corner of the building. The office will be fully finished, but we will need to have access to connect the coax to our encoder and radio modems.

Now to the antennas. We have an Antenex fiberglass omni directional UHF that is about 70” long for our paging encoder (irrigation control), we also have a 900 mhz directional yagi that is used with a radio modem (pump station control), we might also have a 2.4 ghz panel someday.

This is the first project we are undertaking that requires all this stuff and we are looking for a system that will last for years to come. Would you recommend running galvanized conduit to the roof for each antenna or just one for all of them? Would you mount the antennas directly on the conduit or on a mast attached to the mast? How about location on the building? Also, how do you recommend terminating the coax inside the building to make it look nice in our office?

Also, while we are running all this line, what type of lightning arrester would you suggest and mounting locations for it? We have the ability, right now, if we want to, to run a copper ground over to where the office will be or we can do it later

I basically, because this is a totally new course, have free range (within reason) to do whatever I would like to, to get this going. I’m open for any suggestions or any other references that you guys have for this project.


Thanks again,

.Michael[/quote]