The customer uses the 1125 module and the backplane made by himself for indoor testing, and there are 6 different frequency 1125 modules transmitting simultaneously, 2 ways to receive as follows:
1. There is only one 1125 module per receive backplane, each backplane (antenna) is close together, and the 6 backplanes receive data normally at the same time. (Each module frequency interval is large enough so there is no adjacent channel interference. )
2. The six 1125 modules are on the same backplane, and when receiving at the same time, some of the module signals are much less strong than when received individually, even the data is wrong. (Unless the distance of each antenna is increased to more than 15 cm, there must be interference between the antennas. The customer has tried to mask the module and replace the antenna, but the problem still exists.)
So the customer would like to know:
1. Is there something wrong with the scenario that multiple modules receive simultaneously.
2. Why does the antenna only receive but still interfere with each other?
3. when multiple modules are on a single PCB, is there anything need to be aware?
Thanks!
Best Regards,
Cherry Zhou
