I’ve been bouncing around monitoring State of Delaware and FIRST when I came across 7173 on the Cecil Simulcast. I picked up UIDs of 2117426 and 2118258 which are probably MDTA. I wonder if this is another maintenance channel for snow plow operations.
According to previous listeners, 2117246 is JFK Maintenance Base or one of the units there, and 2118258 was last seen as MDTA 420, which operates on the JFK Highway. So, that talkgroups is almost certainly JFK Highway maintenance related.