Since each LNB has 2 output ports, therefore you can hook-up up to 2 SW21 switches to one dish that has 2 dual LNBs (one for Nimiq-91 and one for Nimiq-82). The output of the SW21 switch will connect to the receiver and you will be ready to receive signal from both satellites using this setup. With SW21, all you need to do is input one cable from the LNB that captures 91° satellite and input another cable from the LNB that captures 82°(see image below). So, we will only talk about SW21 in this article. SW21 is simple to use while SW44 is more complicated. To combine the signal from these two LNBs, they use/used switches SW21 and SW44. One LNB to capture the 91 signal and the other one to capture 82 signal. For this purpose, they would use a dual LNB which is now called legacy LNB. After the launch of satellite 82°, they re-designed the dish and upgraded it from 18" to 20" and added a Y-shaped adapter to stack two dual LNBs on the same dish. So, in case of Bell, they used to require only one LNB originally to capture signal from satellite Nimiq-91° because Nimiq-82° didn't exist back then. What are LNBs? LNBs are devices used to capture signal from these satellites. But then they had to add another one (Nimiq-82°) to broadcast HD channels and some international channels. Originally, Bell only had one satellite which was Nimiq-91°. 91° and 82 ° are the positions of the Bell satellites in the sky and does NOT mean that you are pointing your dish at 91° and 82° degrees. To help you understand this, let's talk a little bit about Bell satellites (i.e. In this blog post, we will explain how the LNBs should be connected to the receiver.
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