Fibo Orginal Multifeed Holder?

Turok

Hello!
can anyone confirm,that in past a fibo multifeed holder exitits?
someone in germany told me he has one,soon i get the manual,then i can upload here,maybe its easy to make one,but without orginal size,a little bit dificult

in an auction on Ebay 2 years ago i also saw this multifeed holder,but on the web,i found nothing about it,should be maybe also posible,to install more then 2 lnbs on it,anyone try this?
if so post pictures!
thanx

kamaleon

that would definetly be sweet

Trust1

I think its useless if you stand to the use off the orginal subreflector (mine is 240 mm wth) and 2 feedhorns (90 mm ).

I 've been messuring and drawing , 2 feedhorns in front off the subr. gives an off-set from 40º !!

2 subreflectors in front off the 120 cm Fibo gives an off-set from 16º .
On a 90 cm fibo are approc. the same size subrefl.
By a shorter focalpoint-lenght , this will even give a greater off-set angle .

Off course you can remove de subrefl. , make de feedarm longer and place 2 (or more) Lnbf's on a rail , but than you must scratch away the sign "Gregorian"

__________________
My soldering iron is smoking all the time .

Gr. Trust1

kamaleon

Very intriguing subject indeed!

steffan_st

Have a look at this:

_http://www.satlex.us/en/sweden-pic_10.html

Trust1

Is it yours ?
As I see it well , the original feedhorn is gone and on his place a standard lnbf .

__________________
My soldering iron is smoking all the time .

Gr. Trust1

steffan_st

No,it's not my dish.I took the picture over at my neighbours house.

Actually I've tried the same thing and believe it or not,I didn't loose too much pq compared to the stock feedhorn....

Trust1

Thnx , I gonna try it also , just for the fun .

__________________
My soldering iron is smoking all the time .

Gr. Trust1

kamaleon

guess what I'd just found those pics in the satlex website, and came back here to see steffan had already posted the link... nice one! I'm sure that's a homemade multifeed holder, probably not the same thing Turok mentioned right?

Turok

when i have the orginal manual of the multfeed holder i will post it here,it takes a little bit time to get it,at the moment,i cant answer this questions
my gregory dishes also on satlex gallery
and the mesh dishes of thailand,form 2004,maybe i send the newer picutres also to satlex,then the gallery will be soon much biger!

also i will make soon picutres of a pearl white gregory dish!

steffan_st

Your right Camelon,that's homebrew.His setup works very well though.

I have experimented a lot with the Fibo,and I'm happy to answer any questions about that dish if I can.

Turok

Hello!
good evening!
when,we would have,the orginal size,of the multifeed holder,then i think"homemade"should also perform very well!
2 years ago on other sat boards i found a pircutre,there was installed nerly 5 lnbs on one fibo antenna,but i lost it after a harddic crash in the past!

on the multifeed holder itself,it would be much easier to fit a cband lnb!

Snuffer

But than it's not more a Gregorian so what is the winning part of it???

Better is make on the feedhorn a mod to use 2 LNB's not on the small dish place.

Turok

Hi Snuffer!
this picutre what i have,looks like an adaption,nothing have been modified from orginal

best thing is,to try the cband we must notmodified the antenna itself,we must modified,the lnb,break the plastik,of a relativly smale inverto lnb,then put,the cband electronic ,inside ,into a bigger kuband flansch lnb,like the old mti`s
then,good material around for water protection,and i think it should work,but it needs a lot of time!

Turok

Hello and welcome on board

here,is now a picture of this legandary multifeedholder,that no one have it...
intresting would be,the orginal size,to create one !
modell with out subreflector,then gainwining not good,but a modificaiton i couple of years ago,i found on the net,was moded,with the subrefloector and the multifeed adtionaly added,i think this would be the best solution,but not easy to made !

Attached Images

fibomulti.JPG (31.0 KB, 19 views)

Snuffer

Now its not more a gregorian so the gain is low and as a normal dish.
One of the best thing from the FIBO are the gregorian effect.

olisun

I think the Torodial 90 is the best performing multi-LNB dish in it's category...

Snuffer

no doubt about what you said.

Simpel a gregorian type is make by the small dish in front when you make a second lnb as on the picture its not a gregorian type for that lnb. Bud a normal dish.
The gain and corner from a normal dish is lower than a gregorian so the effect is as a normal simpel dish for that second lnb.
Thats it.

Turok

some of the toridial 90 dishes,has a design fault,and gain wining is not so good like it should be,when i take a signal meter,the gregory 55 cm brings 0,5 -0.8 db more,gain winning then the smalest gregory with 55 cm!

for most,of the satelites t 90 is enough,but,for optimal results the antenna must be optimeized !

i dont like toridial,the material quality is to flimsy,and when hail is coming you can put the toridal into the trashcan!

a old gregory ,or other types,of old school antennas,are masive enough!

Prodelin

Visiosat Bigsat is the best multisat antenna today.

Turok

the quality of this antenna is much better,and not so thin then on the toridial!

but the price is very high 400€

Prodelin

no its only 159 euro from Olbort.at

Turok

,dont forget the delivery coasts,inside europe,the are very expensice for antena shiping!
also i was thinking there was difrent visosat modells avalible,one cheaper,and the other with higher price !

Prodelin

Here is a pic with 8 LNBs

Attached Images

P1110435-.jpg (12.8 KB, 17 views)