39" dish to get T5 and G3C

refid · #1 (**permalink**) 08-21-2006, 11:57 PM

Hi,

I read this thread,
http://www.sadoun.net/forums/4dtv-c-...-galaxy3c.html and did a search not much help....

I checked a lot of sat calculators its possible with skew... but most fta dish do not have skew..

Is it possible with some sort of linear lnb bracket to pick up sats (95,97) that are two degrees apart (without a motor)?

boroda1 · #2 (**permalink**) 08-22-2006, 03:44 AM

Just point dish at 96 W and see, what's up.
You may have a luck to receive channels with a strong signal from both of them.
Skew is possible by twisting LNB.
Bracket is not an option: even if I put two LNBs side by side with no gap, I get satellites 4 or 5 degrees apart, two degrees is too narrow

refid · #3 (**permalink**) 08-22-2006, 02:47 PM

I know 95 & 97 the lnbs would almost be on top of each other....I found this Digiwave Magic bracket III... the website claims it pick up T5 and G3C Chinese package

hxxp://www.digiwavetechnologies.com/index.php?module=pagemaster&PAGE_user_op=view_page &PAGE_id=77&MMN_position=79:11

Has any tried this ... do u think it will work?

refid · #4 (**permalink**) 08-22-2006, 03:06 PM

or mayb doing this.....

would this affect the signal of one or the other? is it pausible?

Star_Voyager · #5 (**permalink**) 08-25-2006, 02:18 AM

Quote:

Originally Posted by refid

Hi,

I read this thread,
http://www.sadoun.net/forums/4dtv-c-...-galaxy3c.html and did a search not much help....

I checked a lot of sat calculators its possible with skew... but most fta dish do not have skew..

Is it possible with some sort of linear lnb bracket to pick up sats (95,97) that are two degrees apart (without a motor)?

Are you trying to get the C-band side of these, or the Ku side? If you are looking for C-band, you will need a MUCH larger dish (8ft or bigger BUD to do well). If you are only looking to get the Ku side of both, then the only ways I know of would be either a BUD or you can set up 2 small dishes. Might try to build your own bracket/arm to aim each LNBF at JUST the right spot on the dish, but the math involved would be "fun".

Also remember both these birds are linear polarity, so get the right lnbfs.

I know, not much help, but at least you have options.

refid · #6 (**permalink**) 08-26-2006, 12:03 AM

i c want to get get them on the same dish....but having trouble find JUST telstar 5... any tip anybody... twisted the lnb and sette elevation... got my top bar 80% but bottom bar still 0% ;(

settings:
transponder 11748V 7230 Auto
13/18
lnb standard 10750

o yah its a 33" dish

boroda1 · #7 (**permalink**) 08-26-2006, 12:57 AM

Try another transponder: 11966 H 22000, it has a killer signal

refid · #8 (**permalink**) 08-26-2006, 02:00 PM

im in BC, canada does it matter which transponder i choose from my location?

Quote:

Originally Posted by boroda1

Try another transponder: 11966 H 22000, it has a killer signal

why is it hortzonital and not verticle ( no auto)?

rainman · #9 (**permalink**) 08-27-2006, 08:23 AM

it really don't matter which TP you use. check www.lyngsat.com for active TP.

refid · #10 (**permalink**) 08-27-2006, 05:45 PM

got it thanks

refid · #11 (**permalink**) 08-27-2006, 05:48 PM

back to this question got 97 now how about adding 95

Quote:

Originally Posted by refid

or mayb doing this.....

would this affect the signal of one or the other? is it pausible?

rainman · #12 (**permalink**) 08-28-2006, 08:13 AM

Quote:

Originally Posted by refid

back to this question got 97 now how about adding 95

put yor lnb close to the first one start moving it around to different positions till you get a lock.

wejones · #13 (**permalink**) 08-28-2006, 09:20 AM

One thing for sure though is that there is going to be significant signal loss for at least one of the two signals, probably better to split the difference and lose signal for both. The ideal separation between the center lines of the two lnbfs will probably be about 0.8 inches, which means that you can't really get very close to proper positioning for sats that close. Only way to even get close is as per the drawing by having one too high and too far and the other one too low and too close. It might possibly work, but it won't be ideal.
In reality, there is only ONE point where a parabolic surface focuses, so any time you put a 2nd lnbf on a dish, you have some loss, but from my mirror experiments, I noticed that as you get off axis, reflections from different portions of the dish go in different directions, and there are some off axis points where there was relatively good focusing, so it might be possible to find an arrangement of the 2 lnbfs where it would work, but I suspect it would take quite a bit of experimentation, plus for sats that close, I'm guessing that you may not be able to use the actual focal point for one lnbf.
Anyway, the multi-lnbf mounting gadget looks neat (although heavy for arms that already have some flex), and would be fun to experiment with, but I would treat it as an experiment rather than something that you expect to work off the shelf.