I'm trying to set up a Raven multihop network with a 802.15.4 sniffer in the middle to capture all the traffic. I want each Raven to receive from only two others but the sniffer should receive from all the Ravens.
Decreasing the raven transmit power makes the network smaller but by definition in a circle (I assume the best topology) the farthest raven is only twice the distance from the sniffer. Can anyone suggest a method to cripple the raven receiver to make it far less sensitive than the sniffer?
I was thinking some kind of directional coupler in the RF driver, a wire leading to the sniffer, or horn pointed at the sniffer. I could also use the raven ATMega1284p to activate or disable some circuit before transmission.