OT - Pneumatic Antenna Mast
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OT - Pneumatic Antenna Mast
Anyone have experience with Will-Burt pneumatic antenna masts? http://www.willburt.com/
I have been asked to add one to a truck for a local repeater. They seem straighforward enough, but maybe there is someone with ENG experience that could provide first-hand info.
Martin
I have been asked to add one to a truck for a local repeater. They seem straighforward enough, but maybe there is someone with ENG experience that could provide first-hand info.
Martin
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Well, I am friends with a broadcast engineer at a TV station. I talked to him before in regards to those, and he told me that pneumatic masts are very expensive, and require a lot of routine maintance to work. He deals with those at his station.
He basically suggested crank-up designs, unless there was some particular reason for using a pneumatic mast.
He basically suggested crank-up designs, unless there was some particular reason for using a pneumatic mast.
73 DE KC8RYW
Random Motorola Part Number:
SYN1894B - V3m Sprint-branded Battery Cover
Random Motorola Part Number:
SYN1894B - V3m Sprint-branded Battery Cover
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Maintance where? The mast itself, Air compressor, cable carier?Jonathan KC8RYW wrote:Well, I am friends with a broadcast engineer at a TV station. I talked to him before in regards to those, and he told me that pneumatic masts are very expensive, and require a lot of routine maintance to work.
Martin
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I wish I knew. Anyone else know? Otherwise, I'll ask him next time I see him.spareparts wrote:Maintance where? The mast itself, Air compressor, cable carier?Jonathan KC8RYW wrote:Well, I am friends with a broadcast engineer at a TV station. I talked to him before in regards to those, and he told me that pneumatic masts are very expensive, and require a lot of routine maintance to work.
Martin
Pleas take what I say with a grain of salt.
73 DE KC8RYW
Random Motorola Part Number:
SYN1894B - V3m Sprint-branded Battery Cover
Random Motorola Part Number:
SYN1894B - V3m Sprint-branded Battery Cover
Air Mast
40-50 foot air masts are available for less than 5K. Youll do less maintenance on them than you do on a mechanical crank up any day.
You'll have more problems, routine maintenance and repairs on a crank-up or electric motor operated unit than any air mast.
Will Burt masts are the way to go for camera, antenna or lighting rigs. I just spec'd a 25' air mast with 1" ID cable guide and a 100# top capacity and it came in about $4K. It takes up a 1' x 1' square area in the body and needs about 5' vertical clearance.
If you have on-board air already, that will save you $$$
Will Burt masts are the way to go for camera, antenna or lighting rigs. I just spec'd a 25' air mast with 1" ID cable guide and a 100# top capacity and it came in about $4K. It takes up a 1' x 1' square area in the body and needs about 5' vertical clearance.
If you have on-board air already, that will save you $$$
Will-Burt, Will-Burt, Will-Burt.
We run three TV trucks all day in all kinds of weather. Our previous news director really liked live shots, so the masts were averaging 15-20 cycles a week. Routine maintenance consists entirely of remembering to check the oil level in the mister from time to time.
They only weigh about 300 pounds - our Suburban can carry the 42-footer easily, and we have a 52-footer in an E-350. We ship them out for a rebuild every few years, but we get a loaner so the truck stays in service - eight bolts and an engine hoist and they slide right out.
One of our trucks came with a winch-up to save money, but it was a maintenance nightmare. The cables fray and bind, the bearings need replacement a lot, when the cable breaks it comes down *hard*. Ours got stuck about 30 feet up when the cable jammed. We had to get a bucket truck to lift it so we could cut the cable and ease it down. We had the truck fitted with air the following week.
We run three TV trucks all day in all kinds of weather. Our previous news director really liked live shots, so the masts were averaging 15-20 cycles a week. Routine maintenance consists entirely of remembering to check the oil level in the mister from time to time.
They only weigh about 300 pounds - our Suburban can carry the 42-footer easily, and we have a 52-footer in an E-350. We ship them out for a rebuild every few years, but we get a loaner so the truck stays in service - eight bolts and an engine hoist and they slide right out.

One of our trucks came with a winch-up to save money, but it was a maintenance nightmare. The cables fray and bind, the bearings need replacement a lot, when the cable breaks it comes down *hard*. Ours got stuck about 30 feet up when the cable jammed. We had to get a bucket truck to lift it so we could cut the cable and ease it down. We had the truck fitted with air the following week.
Sam
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