Hello,

Their is guy at our field with very solid and legitimate Electrical Engineering credentials (Pls Trust me on this). I asked him.

I hope I have this correct , but this is what he said. ( I am the messenger, not the author of these comments)

1) Loss of signal will cause Spectrum Rxs to go into failsafe . So the first explanation in this post is probably correct. This also sounds like the failsafe settings are set incorrectly. He says this is common.

2) Antenna orientation is also an issue. The configuration of the field generated by the Tx is not uniform in strength nor is symmetrical. So there are blind spots. The number and size of these blind spots diminishes rapidly as one moves further away from the Tx.

The proximity m( of the tx ) to the ground is also an issue but very small. Measurable( by instruments) but very small. Probably effectively zero due to the redundant Rxs. But Tx Antenna orientation to what the four Rx antennas see is not zero. He says that is why there are four of them and some systems more than two Rx's.


3) Now here is the new news. The Rx can be swamped if the the signal strength is too strong. He says he can induce this by brining the Tx very close to the two rxs in a certain antenna orientations. And thus he can prove it. This was well know to the designers of the programming in the Rx and the failsafe was designed as a remedy.

4) All of this said, he then said 2.4 gig systems are VASTLY more robust and reliable than 72 mg hertz. Without question. With failsafe properly initialized you should not experience any meaningful amount of problems. But it is not zero.

5) The early Rx had a reboot time after coming of failsafe mode of 8 to 10 seconds . This was a problem and was fixed a long time ago . He says Spektrum was replacing the old ones with new ones which rebooted much much faster - so that it is now almost imperceptible. And they also had a low voltage cutoff ( that caused a reboot which compounded this) into failsafe which was also fixed. Both of these mimicked lose of connection but were in fact not.

I hope I have done justice to my friends explanation I have tried to relate them as accurately as I could. His request for anonymity I believe is legitimate - but I cannot swear to it. He does not work for JR , Spectrum or anybody else you or I can think of.

I hope this has been helpful.

A.