First of all - sorry for my bad english!
I just started with some XBee-Pros 802.15.4 (International)!
After a first test I tried to see the maximum range for our indoor-usecase: We have RS-232 communication to our projectors in the lecture halls and seminar rooms and we would like to replace some of them with the XBees.
But with one XBee adapter in my office room, and the other at my colleagues office (same floor and corridor but 20 meters away with walls) I dont receive any signal.
The Powerlevel is set to 4 (maximum), the installed firmware is version 11e8. I am powering the XBees with 12V power supplies (9-30V printed on adapter).
Can I improve the range indoor? What is your experience with the range of XBee-Pros?