ORIGINAL: srm99
i found my problem or problems i think
1 x hitec eclips 7 modual was a litlle off feq now adjusted
2 x reciever antenna wrong lenght from factory new installed
3 x the best for last battery was rubbing on landing bracket made metal to metal contact to the outside off 1 cell . better padding and location
Well done,
The TX module being off frequency suggests and supports the OEM's claim and or requirement for the need to retune and or at least check signal after crytsal change outs, as in your case...
How did you ascertain the RX antennas were shorter than required and or desired by the OEM? Its unlikely they were shorter than required IMO.
The battery and gear metal abrasion could have been a BIG problem.