ORIGINAL: MikeGreenshields

3 things to consider.

1. our low power mode is very low-output, the thinking is that a true low-output will prevent "false positives". the downside is you get some "false negatives" sometimes.

2. a range test in a crowded 2.4GHz environment or just "crowded" environment will cause "false negatives" as well. Sanwa engineers recommend a range test be done in an open field with no other obstructions or radios within a couple hundred feet.

3. electronically noisy servos can cause low-range just as much as an antenna in the wrong place. Try unplugging all but one of the servos and see if the range changes.

Mike