What type of lnb to use for 1.8 (108cm) dish

[newtonn]

the fomula of th focal point of a parabolic dish is
diamater squared devided by 16 xdept.

so if the diamater is 320 cm that that squares =102,400
depth is 52 cm so 52x16 =832

so 102,400 cm devides by 832= 123.07 cm
this is measured fron the center of the dish to where the feed horn and lnb till be sitting
ralph

thks very much sir, you are too good and you make me gain new things.
but sir i still need more from you.
i also need to no the calculation for the feed horn support or (feed horn rod support).
thks

 

[ralphmagno]

hello,
it is impossible to know that. where on the dish will the rod go?
all 3 will be the same length.
measuer from the center 123 cm out.
then from the tip where the feed horn will go to the side.
as long as the center is 123 cm the side distance just measure it and thats it.
if you mount the arms on the outer ege it will be shorter and down on the slope it will be longer.
just remember the focal point is 123 cm.
ralph

 

[newtonn]

hello,
it is impossible to know that. where on the dish will the rod go?
all 3 will be the same length.
measuer from the center 123 cm out.
then from the tip where the feed horn will go to the side.
as long as the center is 123 cm the side distance just measure it and thats it.
if you mount the arms on the outer ege it will be shorter and down on the slope it will be longer.
just remember the focal point is 123 cm.
ralph

thks, i get you.
i will get back to you, as soon i finish the dish.
thks verm much

 

[newtonn]

Dear friends, plz help me out, i just but this dongle and it came with old version software, did anyone knows if i can reprogram it with latest software? Thks