diff --git a/d868uv.c b/d868uv.c
index 320630c..ba61fdf 100644
--- a/d868uv.c
+++ b/d868uv.c
@@ -1595,6 +1595,12 @@ static void setup_channel(radio_device_t *radio, int i, int mode, char *name,
         }
     }
 
+    if (ch->rx_ctcss == 0 && ch->rx_dcs == 0) {
+        ch->squelch_mode = SQ_CARRIER;
+    } else {
+        ch->squelch_mode = SQ_TONE;
+    }
+
     if (txtone > 0) {                   // Transmit DCS
         ch->tx_dcs = 1;
         ch->dcs_transmit = txtone - 1;