Change in binding behavior with Futaba 9C and Nano Rx

[XPS]

The binding isn't actually immediate. There is a bug in the firmware that randomly interrupts the binding process due to a timing delay that is based on the Mac addresses. However, it was found that this was a good way to insure that the signal was good enough to overcome the random delay (which results in retries when there is an interruption). Some transmitter modules give different results with different receivers as well. You may find that another transmitter module binds instantly with the transmitter.

As always, if the range test passes then there is no problem with the transmitter module.