avoiding interference in the CC1101 reception

[natiya]

I'm trying to get signals in the 433MHz band (specifically, at 433.8MHz), but I keep capturing interference, which makes the reception of the wanted signal very slow and incomplete (therefore, incorrect).

I set up an RX filter of 200KHz, and the following values for the registers:

• AGCCTRL2=0x03 to 0x07
• AGCCTRL1=0x00
• AGCCTRL0= 0x91 to 0x93

I also configured the IF values shown here: http://www.ti.com/lit/an/swra215e/swra215e.pdf

In addition, I tried to set up some thresholds to make sure I capture the signal when its RSSI is inside a valid range, but the interference is still there. I don't mind if the interference is recorded, the problem is the effect when it's transmitted at the same time as the wanted signal because the receiver can't deal with it 

any hint please? thank you!