The Micor receiver has a very fast squelch /audio muting circuit and with the correct and gating, you do NOT need any audio delay. I always use the Squelch Gate card as it's characteristics match the receiver very well. The SG is used for the Repeater Squelch signal, stock configuration. The receiver squelch and the PL decode is and/or ed so there is no squelch crash.
More details if you need them.
