I am using this model from Horizon
http://www.horizonhobby.com/Products...ProdID=EXRA550 on a ST G2300 mounted in a plans built 30% BD-8. I am still working out the bugs on this unit though. Seems sometimes it turns on and others it will not. Called Tech Support and they say it may be a problem with the Spectrum radio set up. I doubt it. They ere very helpful and advised me some trouble shooting tips. I like this unit because you can use a 4.8 volt battery pac.
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