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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
1.1 triax gives better results than my 1.3 aluminium primsat dish
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<blockquote data-quote="archive10" data-source="post: 931164"><p>f/D refers to the focal depth related to the diameter of the dish. It is an expression of the illumination angle of the dish when seen from the LNB.</p><p>They key thing is that the feedhorn (often built-in) of the LNB has to match this figure.</p><p>Most (by far in terms of volume) modern consumer offset DTH dishes and LNBs are 0.6 f/D, making them all more of less compatible.</p><p>Prime focus dishes usually have a lower f/D around 0.3 or so, which means "universal LNBs" won't work, and you need a special feedhorn.</p><p></p><p>Although the SSS website doesn't specify f/D ratio for the dish, I would bet fairly confidently on your dish being 0.6 f/D, as most consumer-oriented dishes are these days.</p></blockquote><p></p>
[QUOTE="archive10, post: 931164"] f/D refers to the focal depth related to the diameter of the dish. It is an expression of the illumination angle of the dish when seen from the LNB. They key thing is that the feedhorn (often built-in) of the LNB has to match this figure. Most (by far in terms of volume) modern consumer offset DTH dishes and LNBs are 0.6 f/D, making them all more of less compatible. Prime focus dishes usually have a lower f/D around 0.3 or so, which means "universal LNBs" won't work, and you need a special feedhorn. Although the SSS website doesn't specify f/D ratio for the dish, I would bet fairly confidently on your dish being 0.6 f/D, as most consumer-oriented dishes are these days. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
1.1 triax gives better results than my 1.3 aluminium primsat dish
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