I discovered an anomaly when programming my Tidradio H8, the Tx DCS I codes show as N when saved. Does anyone know why? However, when checking with Odmaster bluetooth app or when testing to repeater, it works as I. DCS Rx saves as I so does not have the issue. But Rx can be also set to off and still work. But if use a Rx DCS code, it must match what the owner set.