ORIGINAL: jedijingle
Hello, im have a problem getting a proper range check with my radio system. I have a Futaba 9c (dont say it im not switching brands after 20 years, I do like their sevos though lol) the receiver is a 9 channel brand new less than 6 months old. receiver is at least 12!QUOT! away from fuel pump, solenoids and ecu. The antenna is run on the opposite side of all the servos leads and goes out the bottom of the fuse then run along a wing leading edge. With the Tx antenna collapsed I get about 45 paces with the turbine not running. Just a side note if I get a little too far away from the model with the tx annt collapsed and deflect the elevators, ( they are on separate channels 2 and 8) the one on channel 2 will deflect before the ch 8 one deflects. I dont know why this is happening. Some one told me channel 2 and 5 only for a two servo set up.
Back to the main problem, when I run the turbine up and do a range check I can only get about 10 paces away before I have absolutely no radio contact. One step in it works, one step out it doesnt. Im going to try a base loaded anntenna now. any suggestions thanks in advance John
Band new means nothing with any type radio.. in fact they are nothing but big question marks! What is your Baseline range..ECU un-plugged.. just receiver and servos operating? Airplane up off the ground >< 3 feet, trans ant. @ 7 inches. You should be able to walk out about 200 paces (600 feet) IF not your NEW receiver or transmitter module is poorly tuned and or weak.
With turbines we must start out with a normally strong RF link! Then after you know your rec or trans is not in question.... Begin the powered up checks changing rec. ant location & type for the least lost distances. Do not fly with more than a 20% loss in range between powered up & Baseline. Nothing wrong with a 10% standard of loss between powered up & Baseline.... but a 20% degradation is safe to fly with.
Lee