Directv Multiswitch versus SWM
Preface: for the last 4 years, I've been using my trusty 18" single LNB for Standard Definition - so I'm fairly comfortable setting up my Satellite dish and connecting it to my Directv box(set as m...
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It depends on the antenna. There are two kinds that look VERY similar.
This antenna does NOT need a power inserter, because it is not SWM. You can run its coax cables to a multiswitch just like the one you had for your 18"round, and still not need a power inserter.
If you add a SWM8 to get SWM in the house, then you need a power inserter.
This SWM LNB antenna requires a power inserter under all conditions.
Go outside and count the number of coax cables running from the antenna to the house. If you have 4, you have a NON-SWM LNB and can get by without a power inserter as long as you don't also have a SWM8.
If you have less than 4 coax cables, it is a SWM LNB and you will always need a power inserter.
This antenna does NOT need a power inserter, because it is not SWM. You can run its coax cables to a multiswitch just like the one you had for your 18"round, and still not need a power inserter.
If you add a SWM8 to get SWM in the house, then you need a power inserter.
This SWM LNB antenna requires a power inserter under all conditions.
Go outside and count the number of coax cables running from the antenna to the house. If you have 4, you have a NON-SWM LNB and can get by without a power inserter as long as you don't also have a SWM8.
If you have less than 4 coax cables, it is a SWM LNB and you will always need a power inserter.
