Airodump-ng only writing one line per AP to output file

I'm trying to dump all of the beacons received by the wifi adapter into a CSV file, so that I can monitor the RSSI (Power) over time. The man page states that the flag --beacons will output all beacons to the capture file, but this doesn't seem to be the case. -e, --beacons It will record all beacons into the cap file. By default it only records one beacon for each network. The command airodump-ng --beacons -w scan wlan0 produces a file scan-04.csv containing: BSSID, First time seen, Last time seen, channel, Speed, Privacy, Cipher, Authentication, Power, # beacons, # IV, LAN IP, ID-length, ESSID, Key EC:08:6B:45:86:62, 2020-03-27 19:55:43, 2020-03-27 19:55:48, 2, 54, WPA2WPA , CCMP,PSK, -59, 42, 6, 0. 0. 0. 0, 12, TP-LINK_8662, EC:43:F6:68:C0:B8, 2020-03-27 19:55:43, 2020-03-27 19:55:48, 1, 54, WPA , CCMP TKIP,PSK, -37, 40, 0, 0. 0. 0. 0, 8, TestAP_1, Any advice on how to dump each beacon with the power level / RSSI to a file?