Hello guys

I'd like to give you a feedback from the first users of JR 12x system here in Dubai.

We just had a crash this afternoon due to loss of range.
The model was a 1 year old Velox that flew successfully for a long time on 35 Mhz.
The owner switched to the module based 12x and AR 9000 Rx.

The crash appeared on the first flight with the system. The owner didn't deam necessary to do a range check with this radio ( big mistake ).

The guy had a lot of luck since the lockout appeared after takeoff on a vertical climb. The pilot recovered some control and managed to get it back. While on base leg, the plane locked out during a pitch up action.
This led to a stall and crash on final. The plane did land on its tail in the sand with only minor damages.

After recovery and download of the flight log data here is the conclusion:
The plane got 2 hold conditions with massive amount of antennas lost for all 4 antennas ( up to 600 in 3 minutes)

We checked the plane on advance range test with the AR9000 and got a catastrophic result at 30 paces with multiple frame drops.
We then changed to a JR 1221 with the same TX and got the same result.
I then tried to relocate all antennas with no improvement.
We then tried another JR12x with the same poor result.

At that point I was scratching my head and decided to try my 10x with my AR9000 RX. Perfect solid results.

It looks like that the 12x transmitters ( both of them ) have range issues.

I have no more feedback at this stage but it could be a faulty batch of tx...