Low signal on New LNB

[opsmonkey]

just because something 'looks' like another it doesnt mean its the same.. to the untrained eye anything can look 'similar'..

dont buy an Invacom one as they are prime focus LNB's mate..

The difference between the offset satellite dish and prime focal (prime focus) dish is the way the signal reflects from the surface and where it gets concentrated.

Prime Focus Dishes, the signal reflects from the satellite dish and concentrates towards the center, where the LNB is mounted to catch the signal.

Offset Dishes are designed with an offset angle. Usually set at 21-degrees. With this design, the signal reflects from the dish and concentrates towards the bottom of the satellite dish instead of the center of the satellite dish..

You need different types of LNB for each type of dish

[htpc]

Finally I get it! thanks for sticking with me.
You suggested an Inverto and I read that as Invacom. (sorry long day) That's where the confusion came from. I finally understand the difference between the two dishes.
Damn Invacom websit not being newbie friendly.

[opsmonkey]

no probs mate.. when ordering again just make sure its the correct LNB for your type of dish..

Most dishes in Cyprus that i came accross were massive Prime Focus ones in excess of 3m.. hardly saw an Offset, unless it was a BFBS Dish on base

[htpc]

The dishes are over 3m by necessity, sky uk is pretty far away!
The offset dishes are the ones that come as standard with the cypriot packages such as mine.
I had to bring a ladder and go on the roof just to make sure my dish was oval. Before today I could have sworn it was round.

[dick b]

If you go onto this retailers site you can browse through their stuff and look at loads of lnbs and dishes it will give you some idea of whats available. satellitesuperstore.com

[wod1]

also did you move the lnb forward and back in the collar to get the best position for the lnb as that will help and then skew the lnb.

[htpc]

If you go onto this retailers site you can browse through their stuff and look at loads of lnbs and dishes it will give you some idea of whats available. satellitesuperstore.com

that's where I got it in the first place, there is no mention that it's only for prime focus not offset dishes

also did you move the lnb forward and back in the collar to get the best position for the lnb as that will help and then skew the lnb.

yes I moved it the few mm it was able to move & skewed it as well, no improvement

[.: JaCkPoT :.]

Invacom do indeed manufacture lnbs for offset dishes. I have a price list here from a wholesaler and Its in there.

[dick b]

hello again mate,
I have seen pictures of invercom TWH-031 lnbs on offset dishes but it seems they are difficult to set up and they are low output and require a short cable run 20mts max.I still feel your main problem is the dish adjustment it needs setting up with a meter.I"d go back to your original lnb re-set the dish then put a cheap quad lnb on and put the invercom down to experience if you cannot get it going.
when it comes down to it its dish size that is the main factor in reception you really dont need an expensive lnb.

[satsid]

just because something 'looks' like another it doesnt mean its the same.. to the untrained eye anything can look 'similar'..

dont buy an Invacom one as they are prime focus LNB's mate..

The difference between the offset satellite dish and prime focal (prime focus) dish is the way the signal reflects from the surface and where it gets concentrated.

Prime Focus Dishes, the signal reflects from the satellite dish and concentrates towards the center, where the LNB is mounted to catch the signal.

Offset Dishes are designed with an offset angle. Usually set at 21-degrees. With this design, the signal reflects from the dish and concentrates towards the bottom of the satellite dish instead of the center of the satellite dish..

You need different types of LNB for each type of dish

Iv a Invacom on a off set dish with c120 feedhorn.I find mine works great,as signel hit the edges of the dish.

[SatSearching]

Agreed, saying "dont buy an Invacom one as they are prime focus LNB's" is confusing as they do make offset LNB's, I had one on my offset dish.

I fully agree though that offset dishes is Cyprus is very rare, most are prime focus, actually I am surprised to read this post that a user in Cyprus is using an offset dish!

SS

[mkgigs]

Prime focus dishes are used for larger dishes now a days as the shape makes for a strong dish. Off set dishes will only usually be made up to about a 1.8m size.The off set dishes are basicaly a section taken from a larger prime focus dish and the focal point of it found. I used to be involved in the manufacture of dishes in the late 80s to mid 90s working for polar cold and levicks dishes.

[opsmonkey]

Agreed, saying "dont buy an Invacom one as they are prime focus LNB's" is confusing as they do make offset LNB's, I had one on my offset dish.

sorry i should have clarified a bit better.. what i meant was dont buy one of the site i linked (satcy.com) as they are for prime focus dishes only..