I have a Futaba 4YBF transmitter. Went flying last weekend. I installed a freshly charged battery and when I turned on the transmitter, both the red and green lights came on. The manual says to replace ( or I presume re-charge) the battery when the red light flashes. I removed the battery and installed a different, freshly charged battery. Turned on the switch, and both lights were on again. Everything seemed to be working properly, so I did a range check with the antenna retracted, out to at least 150 feet, and everything was working properly. I went ahead and flew five times with no problems. I then changed the batteries in the radio and receiver. Flew four more times, with no problems. I e-mailed Futaba on Monday, but they have not responded. So, has anyone ever had the same problem with this model radio? Any suggestions on what I should check? And by the way, in the past, I have ran the transmitter battery down to the point that the red light started flashing.[X(]
Thanks,
Peter