diff --git a/Monitor_Mode.md b/Monitor_Mode.md
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--- /dev/null
+++ b/Monitor_Mode.md
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+## Monitor Mode
+
+Purpose: Provide information and tools for testing and using monitor mode.
+
+Monitor mode, or RFMON (Radio Frequency MONitor) mode, allows a computer with a
+wireless network interface controller (WNIC) to monitor all traffic received on
+a wireless channel. Monitor mode allows packets to be captured without having to
+associate with an access point or ad hoc network first. Monitor mode only
+applies to wireless networks, while promiscuous mode can be used on both wired
+and wireless networks. Monitor mode is one of the eight modes that 802.11
+wireless cards and adapters can operate in: Master (acting as an access point),
+Managed (client, also known as station), Ad hoc, Repeater, Mesh, Wi-Fi Direct,
+TDLS and Monitor mode.
+
+Note: This document and the start-mon.sh script have been tested on the following:
+```
+Kali Linux
+Raspberry Pi OS
+Linux Mint
+Ubuntu
+```
+-----
+
+## Steps to test monitor mode
+
+
+#### Update system
+```
+sudo apt update
+```
+```
+sudo apt full-upgrade
+```
+
+-----
+
+#### Ensure WiFi radio is not blocked
+```
+sudo rfkill unblock wlan
+```
+
+-----
+
+#### Install the aircrack-ng and wireshark packages
+```
+sudo apt install aircrack-ng wireshark
+```
+
+-----
+#### Check wifi interface information
+```
+iw dev
+```
+
+-----
+
+#### Information
+
+The wifi interface name ```wlan0``` is used in this document but you will need
+to substitute the name of your wifi interface while using this document.
+
+-----
+
+#### Disable interfering processes
+
+Option 1
+```
+sudo airmon-ng check kill
+```
+
+Option 2, another way that works for me on Linux Mint:
+
+Note: I use multiple wifi adapters in my systems and I need to stay connected
+to the internet while testing. This option works well for me and allows
+me to stay connected by allowing Network Manager to continue managing interfaces
+that are not marked as unmanaged.
+
+Ensure Network Manager doesn't cause problems
+```
+sudo nano /etc/NetworkManager/NetworkManager.conf
+```
+add
+```
+[keyfile]
+unmanaged-devices=interface-name:<wlan0>;interface-name:wlan0mon
+```
+
+Note: The above tells Network Manager to leave the specified interfaces alone.
+Remember to replace ```<wlan0>``` with the name of the wifi interface that you
+intend to use in monitor mode.
+
+```
+sudo reboot
+```
+
+-----
+
+#### Change to monitor mode
+
+Option 1
+
+Note: This option may not work with some driver/adapter combinations. If not,
+press on with ```start-mon.sh``` or option 2.
+```
+sudo airmon-ng start <wlan0>
+```
+
+Note: I have provided a script called ```start-mon.sh``` to automate most
+of the following option. Please give it a try and make suggestions to improve it.
+```
+Usage: $ sudo ./start-mon.sh <wlan0>
+```
+
+Option 2
+
+Check the wifi interface name and mode
+```
+iw dev
+```
+
+Take the interface down
+```
+sudo ip link set <wlan0> down
+```
+
+Set monitor mode
+```
+sudo iw <wlan0> set monitor control
+```
+
+Bring the interface up
+```
+sudo ip link set <wlan0> up
+```
+
+Verify the mode has changed
+```
+iw dev
+```
+
+-----
+
+### Test injection
+
+Option for 5 GHz and 2.4 GHz
+```
+sudo airodump-ng <wlan0> --band ag
+```
+Option for 5 GHz only
+```
+sudo airodump-ng <wlan0> --band a
+```
+Option for 2.4 GHz only
+```
+sudo airodump-ng <wlan0> --band g
+```
+Set the channel of your choice
+```
+sudo iw dev <wlan0> set channel <channel> [NOHT|HT20]
+```
+```
+sudo aireplay-ng --test <wlan0>
+```
+
+-----
+
+### Test deauth
+
+Option for 5 GHz and 2.4 GHz
+```
+sudo airodump-ng <wlan0> --band ag
+```
+Option for 5 GHz only
+```
+sudo airodump-ng <wlan0> --band a
+```
+Option for 2.4 GHz only
+```
+sudo airodump-ng <wlan0> --band g
+```
+```
+sudo airodump-ng <wlan0> --bssid <routerMAC> --channel <channel of router>
+```
+Option for 5 GHz:
+```
+sudo aireplay-ng --deauth 0 -c <deviceMAC> -a <routerMAC> <wlan0> -D
+```
+Option for 2.4 GHz:
+```
+sudo aireplay-ng --deauth 0 -c <deviceMAC> -a <routerMAC> <wlan0>
+```
+
+-----
+
+### Revert to Managed Mode
+
+Check the wifi interface name and mode
+```
+iw dev
+```
+
+Take the wifi interface down
+```
+sudo ip link set <wlan0> down
+```
+
+Set managed mode
+```
+sudo iw <wlan0> set type managed
+```
+
+Bring the wifi interface up
+```
+sudo ip link set <wlan0> up
+```
+
+Verify the wifi interface name and mode has changed
+```
+iw dev
+```
+
+-----
+
+### Change the MAC Address before entering Monitor Mode
+
+Check the wifi interface name, MAC address and mode
+```
+iw dev
+```
+
+Take the wifi interface down
+```
+sudo ip link set dev <wlan0> down
+```
+
+Change the MAC address
+```
+sudo ip link set dev <wlan0> address <new mac address>
+```
+
+Set monitor mode
+```
+sudo iw <wlan0> set monitor control
+```
+
+Bring the wifi interface up
+```
+sudo ip link set dev <wlan0> up
+```
+
+Verify the wifi interface name, MAC address and mode has changed
+```
+iw dev
+```
+
+-----
+
+### Change txpower
+```
+sudo iw dev <wlan0> set txpower fixed 1600
+```
+
+Note:  1600 = 16 dBm
+
+-----
+
+### airodump-ng can receive and interpret key strokes while running.
+```
+
+The following list describes the currently assigned keys and supported actions:
+
+
+a
+
+Select active areas by cycling through these display options:
+ AP+STA; AP+STA+ACK; AP only; STA only
+
+
+d
+
+Reset sorting to defaults (Power)
+
+
+i
+
+Invert sorting algorithm
+
+
+m
+
+Mark the selected AP or cycle through different colors if the selected AP is
+already marked
+
+
+o
+
+Enable colored display of APs and their stations.
+
+
+p
+
+Disable colored display.
+
+
+q
+
+Quit program.
+
+
+r
+
+(De-)Activate realtime sorting -
+ applies sorting algorithm every time the display will be redrawn
+
+
+s
+
+Change column to sort by, which currently includes:
+
+ BSSID;
+ PWR level;
+ Beacons;
+ Data packets;
+ Packet rate;
+ Channel;
+ Max. data rate;
+ Encryption;
+ Strongest Ciphersuite;
+ Strongest Authentication;
+ ESSID
+```
+
+-----
+
diff --git a/start-mon.sh b/start-mon.sh
new file mode 100755
index 0000000..612f475
--- /dev/null
+++ b/start-mon.sh
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+#!/bin/bash
+
+SCRIPT_NAME="start-mon.sh"
+SCRIPT_VERSION="20211118"
+
+# Purpose: Start and test monitor mode on the provided wlan interface
+#
+# Usage: $ sudo ./start-mon.sh [interface:wlan0]
+#
+# Status: This script is a work in progress. Please feel free to help
+#         make it better.
+#
+# Information:
+#
+# Some parts of this script require the installation of the following:
+#	aircrack-ng
+#	wireshark
+#
+# $ sudo apt install -y aircrack-ng wireshark
+#
+# Interfering processes must be disabled prior to running this script:
+#
+# Option 1
+#```
+# $ sudo airmon-ng check kill
+#```
+#
+# Option 2, another way that works for me on Linux Mint:
+#
+# Note: I use multiple wifi adapters in my systems and I need to stay
+# connected to the internet while testing. This option works well for
+# me and allows me to stay connected by allowing Network Manager to
+# continue managing interfaces that are not marked as unmanaged.
+#
+# Note: Tells Network Manager to leave the specified interfaces alone.
+#```
+# $ sudo nano /etc/NetworkManager/NetworkManager.conf
+#```
+# add
+#```
+# [keyfile]
+# unmanaged-devices=interface-name:<wlan0>;interface-name:wlan0mon
+#```
+# Note: Option 2 may not be enough and needs testing.
+
+
+# Set color definitions (https://en.wikipedia.org/wiki/ANSI_escape_code)
+RED='\033[1;31m'
+YELLOW='\033[0;33;1m'
+GREEN='\033[1;32m'
+CYAN='\033[1;36m'
+NoColor='\033[0m'
+
+
+# Check that sudo was used to start the script
+if [[ $EUID -ne 0 ]]
+then
+	echo "You must run this script with superuser (root) privileges."
+	echo "Try: \"sudo ./${SCRIPT_NAME}\""
+	exit 1
+fi
+
+
+# Assign default monitor mode interface name
+iface0mon='wlan0mon'
+
+
+# Activate option to set automatic or manual interface mode
+#
+# Option 1: if you only have one wlan interface (automatic detection)
+#iface0=`iw dev | grep 'Interface' | sed 's/Interface //'`
+#
+# Option 2: if you have more than one wlan interface (default wlan0)
+iface0=${1:-wlan0}
+
+
+# Set iface0 down
+ip link set $iface0 down
+# Check if iface0 exists and continue if true
+if [ $? -eq 0 ]
+then
+#	Display interface settings
+	clear
+	echo -e "${GREEN}"
+	echo ' --------------------------------'
+	echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+	echo
+	echo '    WiFi Interface:'
+	echo '             '$iface0
+	echo ' --------------------------------'
+#	iface_name=$(iw $iface0 info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+#	echo '    name  - ' $iface_name
+#	iface_type=$(iw $iface0 info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+#	echo '    type  - ' $iface_type
+	iface_addr=$(iw $iface0 info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+	echo '    addr  - ' $iface_addr
+	iface_state=$(ip addr show $iface0 | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+	echo '    state - ' $iface_state
+	echo ' --------------------------------'
+	echo -e "${NoColor}"
+
+#	Set addr
+	read -p " Do you want to set a new addr? [y/N] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+		iface_addr_orig=$iface_addr
+		echo
+		read -p " What addr do you want? ( 12:34:56:78:90:ab ) " iface_addr
+#		ip link set dev $iface0 up
+		ip link set dev $iface0 address $iface_addr
+#		ip link set dev $iface0 down
+	fi
+
+# 	Rename the interface
+#	echo
+#	read -p " Do you want to rename $iface0 to wlan0mon? [y/N] " -n 1 -r
+#	echo
+#	if [[ $REPLY =~ ^[Yy]$ ]]
+#	then
+	ip link set $iface0 name $iface0mon
+#	else
+#		iface0mon=$iface0
+#	fi
+
+#	Set monitor mode
+#	iw dev <devname> set monitor <flag>
+#		Valid monitor flags are:
+#		none:     no special flags
+#		fcsfail:  show frames with FCS errors
+#		control:  show control frames
+#		otherbss: show frames from other BSSes
+#		cook:     use cooked mode
+#		active:   use active mode (ACK incoming unicast packets)
+#		mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id
+#		mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address
+	iw dev $iface0mon set monitor control
+# 	Set iface0mon up
+	ip link set $iface0mon up
+#	Display interface settings
+	clear
+	echo -e "${GREEN}"
+	echo ' --------------------------------'
+	echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+	echo
+	echo '    WiFi Interface:'
+	echo '             '$iface0
+	echo ' --------------------------------'
+	iface_name=$(iw $iface0mon info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+	echo '    name  - ' $iface_name
+	iface_type=$(iw $iface0mon info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+	echo '    type  - ' $iface_type
+	iface_addr=$(iw $iface0mon info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+	echo '    addr  - ' $iface_addr
+	iface_state=$(ip addr show $iface0mon | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+	echo '    state - ' $iface_state
+	echo ' --------------------------------'
+	echo -e "${NoColor}"
+	
+	
+#	Run airodump-ng
+#	airodump-ng will display a list of detected access points and clients
+#	https://www.aircrack-ng.org/doku.php?id=airodump-ng
+#	https://en.wikipedia.org/wiki/Regular_expression
+	echo -e " airodump-ng can receive and interpret key strokes while running..."
+	echo
+	echo -e " a - select active area"
+	echo -e " i - invert sorting order"
+	echo -e " s - change sort column"
+	echo -e " q - quit"
+	echo ' --------------------------------'
+	echo
+	read -p " Do you want to run airodump-ng to display a list of detected access points and clients? [y/N] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+#		 usage: airodump-ng <options> <interface>[,<interface>,...]
+#
+#		  -c <channels>        : Capture on specific channels
+#		  -a                   : Filter unassociated clients
+#		 --ignore-negative-one : Removes the message that says fixed channel <interface>: -1
+#		 --essid-regex <regex> : Filter APs by ESSID using a regular expression
+#
+#		Select option
+#
+#		1) shows hidden ESSIDs
+#		airodump-ng -c 1-165 -a --ignore-negative-one $iface0mon
+#
+#		2) does not show hidden ESSIDs
+		airodump-ng -c 1-165 -a --ignore-negative-one --essid-regex '^(?=.)^(?!.*CoxWiFi)' $iface0mon
+	fi
+
+#	Set channel
+#	Default
+	chan=6
+#	read -p " Do you want to set the channel? [y/N] " -n 1 -r
+#	if [[ $REPLY =~ ^[Yy]$ ]]
+#	then
+#		echo
+		read -p " What channel do you want to set? " chan
+#	fi
+#	ip link set dev $iface0mon down
+#	iw dev $iface0mon set channel $chan
+	iw $iface0mon set channel $chan
+#	ip link set dev $iface0mon up
+#	Display interface settings
+	clear
+	echo -e "${GREEN}"
+	echo ' --------------------------------'
+	echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+	echo
+	echo '    WiFi Interface:'
+	echo '             '$iface0
+	echo ' --------------------------------'
+	iface_name=$(iw $iface0mon info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+	echo '    name  - ' $iface_name
+	iface_type=$(iw $iface0mon info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+	echo '    type  - ' $iface_type
+	iface_addr=$(iw $iface0mon info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+	echo '    addr  - ' $iface_addr
+# bug - Realtek drivers don't show the right channel after it is set but the channel that was set does work
+	iface_chan=$(iw $iface0mon info | grep 'channel' | sed 's/channel //' | sed -e 's/^[ \t]*//')
+	echo '    chan  - ' $chan
+	iface_txpw=$(iw $iface0mon info | grep 'txpower' | sed 's/txpower //' | sed -e 's/^[ \t]*//')
+	echo '    txpw  - ' $iface_txpw
+	iface_state=$(ip addr show $iface0mon | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+	echo '    state - ' $iface_state
+	echo ' --------------------------------'
+	echo -e "${NoColor}"
+
+#	Set txpw
+	read -p " Do you want to attempt to set the txpower? [y/N] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+		echo
+		read -p " What txpw setting do you want? ( 2300 = 23 dBm ) " iface_txpw
+#		ip link set dev $iface0mon down
+#		iw dev $iface0mon set txpower fixed $iface_txpw
+		iw $iface0mon set txpower fixed $iface_txpw
+#		ip link set dev $iface0mon up
+#		Display interface settings
+		clear
+		echo -e "${GREEN}"
+		echo ' --------------------------------'
+		echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+		echo
+		echo '    WiFi Interface:'
+		echo '             '$iface0
+		echo ' --------------------------------'
+		iface_name=$(iw $iface0mon info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+		echo '    name  - ' $iface_name
+		iface_type=$(iw $iface0mon info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+		echo '    type  - ' $iface_type
+		iface_addr=$(iw $iface0mon info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+		echo '    addr  - ' $iface_addr
+# bug - Realtek drivers don't show the right channel after it is set but the channel that was set does work
+		iface_chan=$(iw $iface0mon info | grep 'channel' | sed 's/channel //' | sed -e 's/^[ \t]*//')
+		echo '    chan  - ' $chan
+		iface_txpw=$(iw $iface0mon info | grep 'txpower' | sed 's/txpower //' | sed -e 's/^[ \t]*//')
+		echo '    txpw  - ' $iface_txpw
+		iface_state=$(ip addr show $iface0mon | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+		echo '    state - ' $iface_state
+		echo ' --------------------------------'
+		echo -e "${NoColor}"
+	fi
+
+#	Test injection capability with aireplay-ng
+	read -p " Do you want to test injection capability? [y/N] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+		echo
+		aireplay-ng --test $iface0mon
+	fi
+
+#	Start wireshark
+	read -p " Do you want to start Wireshark? [y/N] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+		wireshark --interface wlan0mon
+#		filter: wlan.fc.type_subtype == 29		
+	fi
+
+#	Return the adapter to original settings
+	read -p " Do you want to return the adapter to original settings? [Y/n] " -n 1 -r
+	if [[ $REPLY =~ ^[Yy]$ ]]
+	then
+#		Display interface settings
+		clear
+		echo -e "${GREEN}"
+		echo ' --------------------------------'
+		echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+		echo
+		echo '    WiFi Interface:'
+		echo '             '$iface0
+		echo ' --------------------------------'
+		iface_name=$(iw $iface0mon info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+		echo '    name  - ' $iface_name
+		iface_type=$(iw $iface0mon info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+		echo '    type  - ' $iface_type
+		iface_addr=$(iw $iface0mon info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+		echo '    addr  - ' $iface_addr
+		iface_state=$(ip addr show $iface0mon | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+		echo '    state - ' $iface_state
+		echo ' --------------------------------'
+		echo -e "${NoColor}"
+	else
+		ip link set $iface0mon down
+		ip link set $iface0mon name $iface0
+		iw $iface0 set type managed
+		ip link set dev $iface0 address $iface_addr_orig
+#		ip link set $iface0 up
+#		Display interface settings
+		clear
+		echo -e "${GREEN}"
+		echo ' --------------------------------'
+		echo -e "    ${SCRIPT_NAME} ${SCRIPT_VERSION}"
+		echo
+		echo '    WiFi Interface:'
+		echo '             '$iface0
+		echo ' --------------------------------'
+		iface_name=$(iw $iface0 info | grep 'Interface' | sed 's/Interface //' | sed -e 's/^[ \t]*//')
+		echo '    name  - ' $iface_name
+		iface_type=$(iw $iface0 info | grep 'type' | sed 's/type //' | sed -e 's/^[ \t]*//')
+		echo '    type  - ' $iface_type
+		iface_addr=$(iw $iface0 info | grep 'addr' | sed 's/addr //' | sed -e 's/^[ \t]*//')
+		echo '    addr  - ' $iface_addr
+		iface_state=$(ip addr show $iface0 | grep 'state' | sed 's/.*state \([^ ]*\)[ ]*.*/\1/')
+		echo '    state - ' $iface_state
+		echo ' --------------------------------'
+		echo -e "${NoColor}"
+	fi
+	exit 0
+else
+	echo -e "${YELLOW}ERROR: Please provide an existing interface as parameter! ${NoColor}"
+	echo -e "${NoColor}Usage: $ ${CYAN}sudo ./start-mon.sh [interface:wlan0] ${NoColor}"
+	echo -e "${NoColor}Tip:   $ ${CYAN}iw dev ${NoColor}(displays available interfaces)"
+	exit 1
+fi