diff --git a/overlay/etc/udev/rules.d/88-et-qrplabs-qmx.rules b/overlay/etc/udev/rules.d/88-et-qrplabs-qmx.rules
new file mode 100644
index 0000000..32faa20
--- /dev/null
+++ b/overlay/etc/udev/rules.d/88-et-qrplabs-qmx.rules
@@ -0,0 +1,22 @@
+# Author   : Gaston Gonzalez
+# Date     : 12 October 2024
+# Purpose  : udev rules for the QRP Labs QMX 
+#
+# Preconditions:
+# 1. QMX connected via USB cable
+#
+# Postconditions:
+# 1. /dev/et-cat created
+# 2. rigctld started
+
+# Detect ET_DEVICE early and use for rules that follow
+KERNEL=="ttyACM[0-9]*", SUBSYSTEM=="tty", ATTRS{product}=="QMX*", \
+    ENV{ET_DEVICE}="QMX"
+
+# Create consistent device name/path for the CAT serial device
+ENV{ET_DEVICE}=="QMX", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="a34c", \
+    ACTION=="add", \
+    ENV{ET_SUBDEVICE}="CAT", GROUP="dialout", MODE="0660", SYMLINK+="et-cat", \
+    RUN+="/usr/bin/systemctl start rigctld"
+
+# TODO: Add sound card support
diff --git a/overlay/opt/emcomm-tools/bin/et-radio b/overlay/opt/emcomm-tools/bin/et-radio
index 502a958..e2e5693 100755
--- a/overlay/opt/emcomm-tools/bin/et-radio
+++ b/overlay/opt/emcomm-tools/bin/et-radio
@@ -29,7 +29,7 @@ case $1 in
       VENDOR=$(cat $radio | jq -r .vendor)
       MODEL=$(cat $radio | jq -r .model)
 
-      printf "%-20s %-10s %-10s\n" $ID $VENDOR $MODEL
+      printf "%-20s %-10s %-10s\n" $ID "$VENDOR" "$MODEL"
     done
 
     ;;
@@ -62,7 +62,7 @@ case $1 in
     MODEL=$(cat ${ACTIVE_RADIO} | jq -r .model)
 
     printf "%-20s %-10s %-10s\n" "Radio ID" "Vendor" "Model"
-    printf "%-20s %-10s %-10s\n" $ID $VENDOR $MODEL
+    printf "%-20s %-10s %-10s\n" $ID "$VENDOR" "$MODEL"
 
     printf "\nConfiguration Notes\n"
     cat ${ACTIVE_RADIO} | jq -r '.notes[] | "* \(.)"'
diff --git a/overlay/opt/emcomm-tools/conf/radios.d/qrplabs-qmx.json b/overlay/opt/emcomm-tools/conf/radios.d/qrplabs-qmx.json
new file mode 100644
index 0000000..4242886
--- /dev/null
+++ b/overlay/opt/emcomm-tools/conf/radios.d/qrplabs-qmx.json
@@ -0,0 +1,13 @@
+{
+  "id": "qrplabs-qmx",
+  "vendor": "QRP Labs",
+  "model": "QMX",
+  "rigctrl": {
+    "id": "2002",
+    "baud": "38400",
+    "ptt": "RIG"
+  },
+  "notes": [
+    "The QMX uses the Kenwood TS-440 CAT control driver"
+  ]
+}