----- Original Message ----- From: "walter.jonckheere" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, February 21, 2002 2:29 PM Subject: sun shadow & satellite dishes
Walter Wrote: > Bonjour everybody, a bit late, but allow me to come back on the messages > from A.Brown & R.Terwilliger on the subject. The described method works no > doubt for a fixed dish, I mean aimed to 1 satellite, but I doubt it works > for a motorized dish. > 1. the angle of the mast as compared to the earth must be exactly 90 degrees > 2. true south must be found > 3. the dish elevation angle > 4. the dish declination angle > 5. the correct azimuth > If the 4 first points are correct & the dish has a good polar mount, the > dish will follow the Clarks belt while turning. > Thanks for the usefull information on the more conventional method of aligning dishes. I had hoped there was a way of simply aligning a bright spot onto a pre drawn grid on the dish, however complicated the design and implimentation was. I am still not sure if such a device could be "universal" or ones location would have to be known in advance. Perhaps a sextant like function could be built in incorporating a bubble level within the mount. I suspect there would be enough sensitivity on a 1.2M dish half a degree would be about 5mm on the dish surface. Curious Albert -
