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Having had one of my receivers come unplugged on me a couple weeks ago and costing me a brand new airplane, I got to thinking about using a smaller channel expander style device that can take dual receiver inputs with receiver failure protection. Looks like the PowerBox PowerExpander SRS does exactly that as it can take 2 single line style inputs to it and it will automatically switch to the working receiver if, for example, one receiver comes unplugged 
Is there anybody using one of these around here? I'd like to hear some feedback from users before I buy.
http://www.powerbox-systems.com/produkte/powerbox-systeme/powerexpander-srs.html
Thanks!

Is there anybody using one of these around here? I'd like to hear some feedback from users before I buy.
http://www.powerbox-systems.com/produkte/powerbox-systeme/powerexpander-srs.html
Thanks!