Hi Peter, sorry no contacts in the trade. I do all my bodging myself! Are you sure the dish is 30m in the air - thats 90 feet near enough!
The most important thing is that the pole isnt flexing up at the top - it should be either braced as high as possible or have guy lines fitted if this cant happen. A photograph might help - post it in the general install section and everyone can chip in. and give advice.
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