Hi,my friend I use the nrf905,At one end Use the PCB antenna, on the outside part of the metal.Using the results, said communication distance is shorter than 40 meters, easy to loss of data.
In China,I've asked nrF905 agent,XUN TONG company,www.freqchina.com/.../.They didn't give me any feasible solution.
Can you send some nrF905 and PA, and receiving amplifier circuit of nrF905 information for me?I need technical support, thank you very much.