Replacing Tx and Rx batteries
Not sure if this is the right location, but here goes.
When should you replace your batteries in the Tx or the Rx? Better yet, HOW do you know to replace them? My meter on the Tx reads 11.8volts and I get a fine range check. The Tx and Rx are about 6 years old with original batteries. Futaba T-6XA and T-6XH.
Thanks.