gps10MHzPortSquelchControl is a read-write setting for the 10MHz port that determines the type of squelch control used to squelch the port's output, with quality-level-based squelch (squelch-ql) being the only supported option. An administrator would leave this at squelch-ql since it is the sole choice, but the object exists so software can explicitly confirm which squelch mechanism governs this timing output. For example, a configuration audit script would read this object to confirm the port is using QL-based squelching before checking the associated quality-level thresholds.