What is this mean? IEEE802_11_RADIO is not one of the DLTs supported by this device

Hi, I put this command on terminal also shown the result below. Does it mean that even though I change into monitor mode, it would still impossible to get radio information using tcpdump?

[[email protected] ~]# tcpdump -i ath0 -y IEEE802_11_RADIO
tcpdump: IEEE802_11_RADIO is not one of the DLTs supported by this device
[[email protected] ~]# tcpdump -i ath0 -y IEEE802_11_RADIO_AVS
tcpdump: IEEE802_11_RADIO_AVS is not one of the DLTs supported by this device