Quote:
Originally Posted by gblake
If you are trying to link a pair of dish antennae, why do you need to be able to swing one of them through such a wide range (~120 Deg Az & +/- 15 Deg Elev)?
Also, my gut tells me that putting a weather-proof PTU, and a (small) dish antenna, and cabling, atop a 21' pipe atop a 60' tower, isn't going to end well. My gut is often wrong, but that seems like a bunch of mass at then end of a floppy lever arm.
It might not crash and burn, but don't you think it has a good chance of swaying/oscillating enough to foul up your data link?
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rethinking the specs, a pan of 45 degrees, and elevation of +-5 degrees would be more than enough for fine tuning. The elevation control is most important, because the entire mast pipe can be rotated. The 60' tower is guyed and stands atop 2+ cubic yards of concrete and with me at 60' has only slight sway. and the 21' foot pipe extends maybe 18' above that.
the dish mounted in the tree extends maybe 14' unsupported, and a tree was chosen as the cheapest option,$120, as opposed to installing another 60' tower at a cost of ~$1800
