nRF51 based sniffer for BLE packet extension packet?

Is it possible to use nRF51 sniffer to sniff BLE extension packet? It can use the nRF51 sniffer to see the MTU packet exchange (the iPhone will show the maximum packet length in this message) but any data packets with a length greater than 23 bytes after this will appear as garbage because the nRF51 hardware cannot handle the larger packet sizes