Sky HD, TM6800HD, Manhattan Plaza ST550 and TM1500 CI+. 1.0m dish and 36v motor, Panasonic DVD HDD recorder and Panasonic video/DVD recorder. Sony G800 HD TV stand/surround system + Sony KDL40W2000. Infinity USB, Elvis, CAS1, CAS2.
Thanks Jimbo ,I have tried Nobbly's. There is some info there but so far I have not found answers to my questions. I was hoping somebody can save me couple of weeks I need to go through all of the Nobbly's links
Hi Rolfw. Thanks for picking up.Just trying to educate myself about dishes.
1. What is better material
2. What is better shape
3. Is mesh as efficient as solid metal.
4. What affects gain and sensitivity.
This sort of things. Would be nice to find some tables with technical comparisons.
There are some very clued up guys on the forum who will be able to give you the real technical arguments, but it really depends on the size of dish and the application as to which is most suited. If there were a best shape or material, all top quality dishes would be made that way.
Oh dear. Shape, rigidity, LNB feed horn matching, LNB shadowing (on a prime focus dish). Generally, an offset focus dish is more efficient than a prime focus dish because the LNB doesn't block part of the signal. But then you get Cassegrain and Gregorian dishes which are the most efficient but have drawbacks (such as size, weight, appearance and cost).
I recommend you read as much about it as possible in books, as I have over the last year or so. It's a minefield. There are dealers out to fleece you and there are people with a little knowledge (but not enough - like me and Rolf!) who might mislead you.