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50 ft telescopic Channel Master pole with rotor

1674 Views 8 Replies 4 Participants Last post by  Gibson_s
I have a 50 ft telescopic CM pole. It is anchored in cement and guyed in two places. It used to be up about 40 ft until the wind moved the screw bolts out and it came down to around 20 ft. My CM rotor stopped working. I have a 6 ft pole with a CM dual amp that goes to a big antenna for VHF and a yagi for UHF. Can I mount a Yaesu 450 or higher rotor on top with guy wires and not have any problems? Does anyone have any ideas in who to get to help me to get it up the right way? Our local Radio Shack gave me someone's number who said they helped with HDTV antenna/pole installation, but when I told the person about where the pole was, there was a refusal.
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I have a 50 ft telescopic CM pole. It is anchored in cement and guyed in two places. It used to be up about 40 ft until the wind moved the screw bolts out and it came down to around 20 ft. My CM rotor stopped working. I have a 6 ft pole with a CM dual amp that goes to a big antenna for VHF and a yagi for UHF. Can I mount a Yaesu 450 or higher rotor on top with guy wires and not have any problems? Does anyone have any ideas in who to get to help me to get it up the right way? Our local Radio Shack gave me someone's number who said they helped with HDTV antenna/pole installation, but when I told the person about where the pole was, there was a refusal.
Do you want to extend it back to the 50 ft height, or just leave it at 20 ft?
I had most companies refuse to work on my 30ft tower. One who said yes had a "$150 tower climbing fee". I couldn't say "No" fast enough.

I don't think these poles do the job that a tower can do, but that's just me. You are asking too much from these telescopic poles and the wind still does it's thing.

If you have a little dinky antenna or something it might work, I can't imagine a huge Yagi and rotor on a pole, even guyed in. I say scrap the pole and find a Pro who will do a tower setup and you can go nuts on top as much as you like. People around here are giving older towers that are still good, for free if you pick it up.
For about 4 years, we received all of the channels that we wanted. As you can imagine, we live where the new owner cut down all of the trees and put in a pasture. The high winds and weather caused the first telescopic pole to break. A few years ago we installed the replacement. Someone helped me get it back up, but as Gibson said the wind and weather caused continual issues. We lost channels due to the loss in height and EMF interference from an internet tower, cell tower, motors, and neighbors. My problem here is our local yokel officials don't want people putting up towers. To get the channels that I can, I am fortunate to be able to get up on my sunroom roof and move the antenna until the next wind comes. The only way that I will get channels is to move somewhere without restrictions and rules.
Please follow the stickies and post a link to your rabbitears station report and other requested info. It would help us to determine what you actually need for an antenna.

How do you know you're getting RFI from the various sources you listed? Are you looking at your signals with a spectrum analyzer?

The Yaesu G-450 is an excellent rotor choice and can be installed on top of a mast.

I wonder if your CM telescoping mast was put up correctly? You're supposed to extend each section all the way and then put a pin through the section below it to keep it from collapsing. If yours slipped then it wasn't pinned.
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I had a discussion about my continual problems in another forum until the website was sold out. All of our posts were gone. The pins were not put in properly by the person who did his best to help. The wind worked the pin to make it come down. I don't have a spectrum analyzer. We lost channels from the antenna's current height. I have a neighbor who works in his shop on mechanical items. Another one who claims to not work on cars has been working on a total rebuild of a truck. Then we have all the trash trucks in our area go by my house. Many people drive to their homes with all types of motorcycles and cars. I own an Antennacraft HD 1850. The second antenna is an Antennas Direct Yagi UE-MX91. My preamp is the predecessor to the CM7778HD which allows the connection of both antennas on the pole. RabbitEars.Info I can tell you what channels that used to get from the station letters, but someone on my feed said that I confused them. They moved my prior post, and I never received any recommendations. We watch most of our broadcasts from the Greenville/Spartanburg/Asheville OTA broadcasts. We do pickup our formerly local Channel 32. The GPB station comes and goes. I want to set this up right and make it easier on me. My best resource in understanding this technical area was my father, and unfortunately he passed almost five years ago.
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Yikes, your towers are all over the place and mostly fringe. It's no wonder you are having difficulty. I say to build a tower with professionals to set it up for you. Cry once and be all set for a decade or two. Maybe try to hit two different markets with combined antennas or a rotor and amp. All these items add weight to a telescopic pole that isn't as stable as a tower.

Pretty tough to have a pole hold the weight with one anchor point when a tower has 4 legs, cemented, bolted to the house and has guy wires (depending on how much higher it goes over the roof line). That's my advice. I would scrap any large weight going up on a pole, other than a small bowtie and a preamp, just asking for trouble with a massive Yagi, rotor, extended to 40-50ft.
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Thanks for your Rabbitears report. With stations in various directions a rotor is necessary or multiple antennas combined through a device called the Televes Avant-X. I don't know why you have an HD-1850. That antenna covers low VHF. Unless WGGS on RF Channel 2 is a must have, you don't need a low VHF antenna.

You can get the 5 major networks plus CW and some digi-nets on WLOS and stronger stations. The good news is they're all line-of-sight looking at your terrain plots. I don't think you need an XG91 for UHF either. Your UHF stations all have Noise Margins greater than 30 dB. That's not weak.

For my analysis, which leaves out the many weak stations, a Winegard HD-7698P and a preamp with a rotor as high up as you can get it should work and it's much less wind load than a HD1850 and a XG91. Of course there's always the complicating tree factor. If you're looking through a forest, the trees can ruin otherwise good signals.

When you say that a lower height lost channels, which ones are you talking about? You have a very long list of stations and it's not realistic to think you'll get them all. That's why I covered the 5 major networks in the top 7 stations.

What height was your first antenna at? Was the mast roof or ground mounted?

I don't know who told you not to use call letters. We use them here.
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I had a discussion about my continual problems in another forum until the website was sold out. All of our posts were gone. The pins were not put in properly by the person who did his best to help. The wind worked the pin to make it come down. I don't have a spectrum analyzer. We lost channels from the antenna's current height. I have a neighbor who works in his shop on mechanical items. Another one who claims to not work on cars has been working on a total rebuild of a truck. Then we have all the trash trucks in our area go by my house. Many people drive to their homes with all types of motorcycles and cars. I own an Antennacraft HD 1850. The second antenna is an Antennas Direct Yagi UE-MX91. My preamp is the predecessor to the CM7778HD which allows the connection of both antennas on the pole. RabbitEars.Info I can tell you what channels that used to get from the station letters, but someone on my feed said that I confused them. They moved my prior post, and I never received any recommendations. We watch most of our broadcasts from the Greenville/Spartanburg/Asheville OTA broadcasts. We do pickup our formerly local Channel 32. The GPB station comes and goes. I want to set this up right and make it easier on me. My best resource in understanding this technical area was my father, and unfortunately he passed almost five years ago.
Half of your post isn't relevant as you are with experts right here on this forum and if you show me anyone who doesn't have neighbors, adverse weather and traffic in their vicinity... it'll be very few people. Many have cell towers close by too (I have one 2 blocks away). Can't change Mother Nature, current tech interference or other people's activities. You just have to deal with it.

If your system worked at 30 or 40ft before, it can be made that way again - even better. I don't think these poles are very stable, I suggest opening the wallet and getting a tower built by professionals then rethink every aspect of it.

I had interference on my VHF signals for about 12 hours with a storm and high winds, then a cold front came in - also high winds. Woke up today and everything is back to normal. You can't control everything, just try to make something as reliable as possible.
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