How critical is lnb focus?

[ched999uk]

I ordered my dish etc for viewing 19.2e (F1) and a multi lnb holder for hotbird before I found this forum!
My Sky type zone 2 with Octo lnb (supposed to be quad!) arrived today and my multi lnb bracket a few days ago.
I tried putting the lnbs onto the multi lnb bracket today and found out Sky lnb's are not 40mm mountings!
Anyway after 'adjusting' the holder on the multi lnb bracket the only way I can can get the Sky lnb to accept the multi lnb bracket is to 'move' the sky lnb 2 mm closer or 2mm further away from it's focal point.

I am in Sunny Blackpool but thought a zone 2 dish would be better?
Any ideas if 2mm shift away from focal point will effect my signal strength/quality too badly?

Thanks

 

[Ghostleader]

Do you mean 2mm towards or away from the dish as opposed to the right or left along the rail? In this case I'd say no, not really.

 

[Analoguesat]

19E is a fairly strong signal so a little misalignment probably wont hurt.

 

[ched999uk]

Thanks. I was hoping that it wouldn't cause too much problem.

 

[Channel Hopper]

Certainly not as important as title spelling.

 

[ched999uk]

That was very critical of you
Sorry.

Cheers admins.