"I have had a 1000 meters with good signal strength with 2.4Ghz 60 mW Xbees with my tricopter, all crashes were pilot error not the controller Kiwi Tricopter: Arduino Xbee Receiver "

"my futaba 6ex has been out to 1.75 miles easy"

"hi folkz you can use the XBEEs in both variants: 2G4 for testing RC-like "in sight" and the longrange 900 or 868XBEE for telemetry and waypointsetting.. works for me up to 5mi. or control when in sight the UAV with classic RCgear or 2G4…"

"The FrSky modules have been tested out to about 5km LoS. There are many variables however; your question is too vague for a simple answer."

"You can use http://store.diydrones.com/ProductDetails.asp?ProductCode=WI-AMP-24-500&CartID=6 without any modification to your 2.4ghz RC system."

"For my long range 2-way serial system I used some 433mhz radio modems. Operation is the same as with Xbee's giving your a two-way serial communications pipe over radio. But range is much better. link:…"

"No Xbees won't operate out to 6 miles, its illegal anyhow. Your RC will probably not work much beyond 500m either."

"The Xbee modules work up to 6 miles. ? Their output's is not so high , i think their range is smaller then 6 miles ?"

"Sorry to bring this thing back up. I fixed the problem. My receiver was being powered by an old multi power adapter brick that barely supplied 200ma at 12V. I switched it to a big juicy 12v power supply and the picture is perfect. Thank you all who…"

"That's Great to know!! I even emailed the FCC asking them about it, but they haven't responded. (I would hate to pay any fines!!) Thanks for the response Nathaniel! I'll just go ahead and get the technical class license. Just wonder…"

"Could the reserved nature of the channel, by being in frequent use by its reserver, be leading to the interference issues with my tx/rx?"

"Carlos, You are absolutely correct, 1240 to 1300 MHz is reserved for "Ham"/Amateur radio use. You can obtain a technician class license very easily. You can find information on obtaining a license here. You can find out more about…"

"I was also looking in purchasing one of these also but I dont see how its illegal if operated on the 1.240G or 1.280G band? (The transmitter has 8 Channels 6 of which I believe are illegal) But according to the Frequency Allocation Chart…"

"Ahhh okay, i'm not sure, i'll drive around and check today."

"I'm thinking what John is thinking. Do you see anything, either at the airport, or "around" your area that looks like either of these (sometimes the top is more of a pointy…"

"Yes I have, image is fine w/o tx/rx"