diff --git a/overlay/etc/skel/.reticulum/README.md b/overlay/etc/skel/.reticulum/README.md
index 4e0955c..ede9738 100644
--- a/overlay/etc/skel/.reticulum/README.md
+++ b/overlay/etc/skel/.reticulum/README.md
@@ -26,6 +26,7 @@ the supported tokens below.
 ET_CALLSIGN
 ET_RETICULUM_INTERFACE_AUTO_ENABLED
 ET_RETICULUM_INTERFACE_AX25KISS_ENABLED
+ET_RETICULUM_INTERFACE_MODEM73_ENABLED
 ET_RETICULUM_INTERFACE_RNODE_BANDWIDTH
 ET_RETICULUM_INTERFACE_RNODE_CODINGRATE
 ET_RETICULUM_INTERFACE_RNODE_ENABLED
diff --git a/overlay/etc/skel/.reticulum/config.blueprint.modem73-node b/overlay/etc/skel/.reticulum/config.blueprint.modem73-only-node
similarity index 98%
rename from overlay/etc/skel/.reticulum/config.blueprint.modem73-node
rename to overlay/etc/skel/.reticulum/config.blueprint.modem73-only-node
index 3fa2ba1..e3b6e85 100644
--- a/overlay/etc/skel/.reticulum/config.blueprint.modem73-node
+++ b/overlay/etc/skel/.reticulum/config.blueprint.modem73-only-node
@@ -129,9 +129,8 @@
   [[modem73]]
     type = Modem73Interface
     mode = roaming
-    enabled = yes
+    enabled = {{ET_RETICULUM_INTERFACE_MODEM73_ENABLED}}
     target_host = 127.0.0.1
     target_port = 8001
     control_host = 127.0.0.1
     control_port = 8073
-
diff --git a/overlay/opt/emcomm-tools/bin/et-reticulum b/overlay/opt/emcomm-tools/bin/et-reticulum
index 99301fd..4c53d18 100755
--- a/overlay/opt/emcomm-tools/bin/et-reticulum
+++ b/overlay/opt/emcomm-tools/bin/et-reticulum
@@ -137,6 +137,19 @@ fi
 
 et-log "Updating configuration for this session..."
 
+############################################################
+# MODEM73  interface updates
+############################################################
+
+# Enable/disable intereface based on PnP device detection
+IS_MODEM73_RUNNING=`ps -ef | grep [m]odem73`
+if [[ $? -eq 0 ]]; then
+  INTERFACE_MODEM73_ENABLED="yes"
+else
+  INTERFACE_MODEM73_ENABLED="no"
+fi
+sed -i "s|{{ET_RETICULUM_INTERFACE_MODEM73_ENABLED}}|${INTERFACE_MODEM73_ENABLED}|g" ${RETICULUM_CONF_FILE}
+
 ############################################################
 # AX.25 KISS (Packet Radio) interface updates
 ############################################################