Re: Eutelsat 2 - BBC radio problems -- The Astra 2D Forum

[ Show ]

Support VoyForums

[ Shrink ]

VoyForums Announcement: Programming and providing support for this service has been a labor of love since 1997. We are one of the few services online who values our users' privacy, and have never sold your information. We have even fought hard to defend your privacy in legal cases; however, we've done it with almost no financial support -- paying out of pocket to continue providing the service. Due to the issues imposed on us by advertisers, we also stopped hosting most ads on the forums many years ago. We hope you appreciate our efforts.

Show your support by donating any amount. (Note: We are still technically a for-profit company, so your contribution is not tax-deductible.) PayPal Acct: Feedback:

Donate to VoyForums (PayPal):

[ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, [3], 4 ]

Subject: Re: Eutelsat 2 - BBC radio problems

Author:
Outsider

[ Next Thread | Previous Thread | Next Message | Previous Message ]

Date Posted: 06:24:38 11/30/03 Sun
In reply to: Chris Pollard 's message, "Re: Eutelsat 2 - BBC radio problems" on 21:51:53 11/29/03 Sat

>Are you taking into account the fact that we are in
>the middle of the Mediterranean? Most people here
>have Astra 19 and hotbird but there is a gap between
>the lnbs. Is a matter of latitude?

Yes, it depends on location a bit and also on parameters other than diameter of the dish (F/D, Beamfactor). I checked it for Rome (too lazy to look for co-ordinates for Malta ;-) for SMW OA-850 dish using their SMWLink program. Also, if you look at those 'monoblocks' (that contain two LNBs and the DiSEqC switch in one unit) there's not much distance (maybe some 5mm) between the feedhorns. For SMW OA-1050 (105cm dish) the distance for Hotbird/Astra dual-feed would become 76mm and for Hotbird/W2 36mm, the latter still impossible to achieve with normal LNBs. Difference in height of the LNBs depends more on the location. Of course best to align the dish first for the LNB in the center position and then optimize the position of the second LNB but good to have some idea of the correct location in advance even in that case.

Seems you have already solved the problem, good!

[ Next Thread | Previous Thread | Next Message | Previous Message ]