Receiving both 19.2E and 28.2E with dual LNB setup

Urban Weigl · 18-08-2004 04:12PM #1

I have an 85cm dish set up with a Dreambox. I have two LNB's on the dish with a switch. I mounted the LNB for 19.2E in the middle of the dual LNB holder, and aligned the dish.

I can receive that satellite fine.

However, no matter where I move the second LNB, I am not able to pick up any sign of 28.2E, which is supposed to be a strong satellite.

What could I be doing wrong?

Widescreen · 18-08-2004 04:45PM

I'm not that technical but I would think that the satellite dish must be directed in the direction needed , not the lnb. Would imagine you would need a motorised facility whereby your dish moves as you switch decoder.

I'm sure the experts will give a more detailed reply than this though.

Webmonkey · 18-08-2004 04:49PM

It is possible to get a signal from both satellites with the dish in the correct place using the dual lnb but i dunno how to help you

inigo · 18-08-2004 05:15PM

http://www.satcure.co.uk/tech/page9.htm

They use 3 LNBs with the same dish...

Hope this helps

finnpark · 19-08-2004 12:46PM

I would be interested in this also. it's much handier than a motorised system. 3 LNBs on a 80cm dish for 3 different sats seems class. How did you get on with it?

Are you sure your second lnb is working ok? swap it with the working one to see if you still receive.

Zaphod · 19-08-2004 01:50PM

Are you sure your switch is OK?

Remember that the dish acts pretty much like a mirror. So if your dish is aimed at 19.2E, then the LNB for 28E will need to 9 degrees *west* of the 19.2E LNB i.e. as you look out from behind the dish, the 19.2E LNB will be in the middle and the 28E LNB will be to the right of it.

byte · 19-08-2004 10:01PM

http://homepage.eircom.net/~watty/satellite/sathowto-p6.htm

Above is Watty's much used guide on setting up 3 LNB's from one dish DIY-style!

meatball1 · 19-08-2004 10:40PM

I have 3 L.N.Bs on a triax 78cm antenna,
astra 2 72dbuv
astra 1 75dbuv
hotbird 72 dbuv

98% of all channels perfect in bad weather.

profesional l.n.b bracket from triax.

watty · 19-08-2004 10:56PM

byte wrote:

http://homepage.eircom.net/~watty/satellite/sathowto-p6.htm

Above is Watty's much used guide on setting up 3 LNB's from one dish DIY-style!

yes, though the bracket is a proper one and the 28.2E / Sky LNB is a dual to feed PC card and Digibox. The other two LNBs feed PC too. With a 1.2m Dish you can feed 5, the main advantage is to feed MULTIPLE recievers, I had a duplicate setup with 19, 13 and 7 all on analog using 80cm dish. Originally I had a home made 3 way LNB switch operated by Digibox SCART connector and the 3 LNBs on Digibox. I got feed up with Digibox issues and bought the PC card, like a Skystar1 or Hauppauge Nexus-s (Nova-s / Skystar2 has no built in TV out or MPEG decoder).

A multiple LNB gives instant switching, a motor is slower. I have a Motek diseq GotoX motor too which gets from 42E to 50W ish on a 85cm dish about 29 satellites with FTA TV, Radio and feeds. See www.satellite.ie for similar parts and www.satcure.co.uk for specialist odds and ends.

I have a spare 4th switch i/p on PC now, it was Hispasat then Thor/Intelsat. I may put up a dish for it again.

Urban Weigl · 21-08-2004 08:26PM

Would it help if I uploaded a photo of my dish and LNB's on it?

Receiving both 19.2E and 28.2E with dual LNB setup

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