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Message: <blockquote data-quote="John" data-source="post: 990396" data-attributes="member: 175005">... Iv'e now got three motorised polarity changing gadgets spread out over Ku - Ka - Cband lnb's but have just got the one controller in the shack and to change which band i wanted to operate meant going outside to the dish and un-plug which ever and re-plug in another.  If it's raining it's a bit of a ba*l  ache.   So, for a few quid i  knocked up this 433MHz  4 way remote switch, located it at the lnb position in a small waterproof hobby box, fitted some led's to indicate what channel is in use, and bobs your uncle.  Works a treat.I'll post some pics when it's daylight..... for the moment here's a schematic</blockquote>