Hello All,
I used several times this forum to get answer during the development of our products, but this time i can not clearly find an answer to my problem.
The problem is that about 15-20 percent of our product has very high LQI but not bad RSSI.
These devices do not transmit a signal confidence.
I did an experiment: the programmed device so they sent their serial number every second.
Those devices which LQI normal (less than 30) - every second pass, but those who LQI is 90, 100 or above - passed very rare (1 per minute or less).
We have already produced more than 10,000 devices.
Repeatedly changed the topology of the circuit board, but always follow the PCB Layout Recommendations for this chip.
cc2510 we use with cc2591 to increase the range of communication.
To power the device we use lithium battery with super capacitor on 0.1F
In what could be the problem?
What can we do to resolve this?
I would be glad of any help!
With respect, Roman.