diff --git a/start_docker.sh b/start_docker.sh
index c00dbe1..f5331a1 100644
--- a/start_docker.sh
+++ b/start_docker.sh
@@ -28,6 +28,17 @@ GAIN=0
 BIAS=0
 
 
+# Baud Rate & FSK Demod Oversampling Settings
+#
+# Default: 115177 baud 8x oversampling (Default using a RPi Zero W's UART)
+# Other parameters which *may* work, but are un-tested:
+# 9600 baud, 100x oversampling
+# 4800 baud, 200x oversampling
+#
+BAUD_RATE=115177
+OVERSAMPLING=8
+
+
 # Stop and remove any existing wenet instances
 echo "Stopping/Removing any existing Wenet instances..."
 docker stop wenet || true && docker rm wenet || true
@@ -40,6 +51,8 @@ docker run -d \
 	-e RXFREQ=$RXFREQ \
 	-e GAIN=$GAIN \
 	-e BIAS=$BIAS \
+	-e BAUD_RATE=$BAUD_RATE \
+	-e OVERSAMPLING=$OVERSAMPLING \
 	-v ~/wenet/rx_images/:/opt/wenet/rx_images/ \
 	--device /dev/bus/usb \
 	-p 5003:5003 \
diff --git a/start_tx.sh b/start_tx.sh
index cadb8dc..8255398 100755
--- a/start_tx.sh
+++ b/start_tx.sh
@@ -1,31 +1,41 @@
 #!/bin/bash
 #
 #	Wenet TX-side Initialisation Script
-#	2016-12-05 Mark Jessop <vk5qi@rfhead.net>
+#	2022-03-19 Mark Jessop <vk5qi@rfhead.net>
 #
 #	Run this to set up an attached RFM22B/RFM98W and start transmitting!
 #	Replace the transmit frequency and callsign with your own.
 #
 
+# A callsign which will be included in the Wenet Packets.
+# This MUST be <= 6 characters long.
 MYCALL=N0CALL
-TXFREQ=441.200
+
+# The centre frequency of the Wenet transmission.
+TXFREQ=443.500
 
 # Baud Rate
-# Known working transmit baud rates are 115200 (the preferred default), 9600 and 4800 baud.
+# Known working transmit baud rates are 115200 (the preferred default).
+# Lower baud rates *may* work, but will need a lot of testing on the receiver
+# chain to be sure they perform correctly.
 BAUDRATE=115200
 
+# GPS Port
+# Note that we only support uBlox GPS units
+GPSPORT=/dev/ttyACM0
+
 # CHANGE THE FOLLOWING LINE TO REFLECT THE ACTUAL PATH TO THE TX FOLDER.
 # i.e. it may be /home/username/dev/wenet/tx/
 cd /home/pi/wenet/tx/
 
-#Uncomment to initialise a RFM22B
+#Uncomment to initialise a RFM22B (untested with Python 3)
 #python init_rfm22b.py $TXFREQ
 # Uncomment for use with a RFM98W
-python init_rfm98w.py --frequency $TXFREQ --baudrate $BAUDRATE
+python3 init_rfm98w.py --frequency $TXFREQ --baudrate $BAUDRATE
 
 # Start the main TX Script.
-# Note, this assumes there is a uBlox GPS available at /dev/ttyACM0
-python tx_picam_gps.py --baudrate $BAUDRATE $MYCALL &
+# Note that you can also add --logo /path/to/logo.png  to this to add a logo overlay.
+python3 tx_picam_gps.py --baudrate $BAUDRATE --gps $GPSPORT $MYCALL &
 
 # If you don't want any GPS overlays, you can comment the above line and run:
 # python WenetPiCam.py --baudrate $BAUDRATE $MYCALL &