Wednesday, February 23, 2011

Increasing RF receiving range

One issue that can cause issues in a 2-story home is the ability to send and receive RF signals across the home, and possibly even the entire yard.  Typical RF reception range can be as low as 20 feet, and if you have complete line of sight max is about 100 feet.  In my house, which is older construction so thicker walls, I was not able to receive RF signals from one end of the hosue to the other (My RF receiver is a W80032RF serial receiver) so I needed to figure out some way to increase my reception range.  This is where the Internet comes in!

I searched around for a while, and then found a great DIY thread on a home automation forum that I frequent, Cocoontech.com, that talked and described in great detail how to build an antenna out of easily obtainable parts from Radio Shack and the local hardware store (See link at bottom of page for the How-To).  Once I went through and built the antenna, I hooked it up to my W800 and re tested the range.  At this point I was able to use a simple X-10 RF device (Palm Pad) from my driveway at the other end of the yard (over 100 feet of obstructed distance) and it worked fine.  Awesome!  Super geek project complete.  Now on to things to use this for...stay tuned and I will detail several examples in my next post.

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