ESP 32 BLE Signal Strenght RSSI

[mforbiz]

I'm testing an ESP Wroom 32 as BLE device (BLE server) using Arduino IDE.
Very close to the ESP32 ( 20-30 cm) the signal strenght - RSSI value is about -55 -60 dBm that is good. Already at 2 meters (without any obstacle) the signal strenght drop to -70 - 75 dBm (that is accettable). But at more than 4-5 meters the signal goes at - 90 dBm that is too low signal. Is there any way to improve this behaviour?
Any idea?

[chegewara]

Do you maybe have by any chance module/devkit with antenna on PCB and IPEX? It looks to me that IPEX antenna is used, but i may be wrong.

[mforbiz]

Hi chegewara.
Thanks for you reply.
Problem solved.
If you are interested see this trhead.
https://electronics.stackexchange.com/q ... 045#622045