dBm is a measurement of signal powers. Furthermore, dBm is use to determine the strength of a WiFi signal. With the help of dBm, a person can understand why a wireless device is not working correct.
A high dBm level will have a lower number that is more less negative. A signal strength with a high negative number will have a weaker signal power. If the signal power are too low, it isnt strong enough to send command to smart device in the home.
How dBm Affects Your Home WiFi
By understanding dBm, a person can begin to move away from guesswork in fixing a network problem to using the scientific method to find and fix the problem. To map out the signal zone in the home, a person must walk from room to room with a mobile device to note the dBm levels in each room. Each room will have a different signal strength.
Smart device, such as smart thermostats and locks, require signal power to function correct. If the signal power drops, the smart devices will no longer function proper. A signal map will show a person each zone of the home with a strong signal and where the signal weaken.
A smart home require more attention to the dBm levels than a network does because there are so many device. Each smart device use small antennas to transmit signals with low power. The smart fridge camera will have a weaker signal than a laptop.
Each device require signal power to function within the smart home. The dBm scale can show how much the signal power change. For every ten units the dBm level increase, the signal power has increased tenfold.
A small change in the dBm level create a great change in signal power. If a person move the router slightly, the signal power will be strong in certain area. Walls will impact the dBm level of the signal that the router transmits to the devices.
Drywall walls will not impact the signal much, but concrete walls will. Metal objects will also interfere with the signal because metal will reflect the signal. This will create shadow in the area with metal objects.
The more barriers between the router and the device, the more lower the signal power will be. Many people will blame the router for the low signal strength. However, by moving the router to a central location in the home, people can increase the signal strength and dBm level in each room in the house.
Several tool can measure the dBm levels of each device. For individuals with Android device, the settings menu will have a dBm level. For laptops, the command prompt contain the dBm level.
Using these measurement, individuals can create a heat map of their home. Many people will purchase new hardware for their WiFi without measuring the dBm levels of their device. By measuring the dBm levels, individuals can diagnose the problem correctly.
Several application will display whether the signal strength is fluctuating due to interference from other device in the home. The different band of WiFi will impact the dBm levels differently. The 2.4 GHz band will allow the signal to pass through obstacles easy and will be used for remote sensor.
However, other device using the same channel can jam the 2.4 GHz band. The 5 GHz band allow for high data speeds but has a shorter range. If using a mesh network system, the mesh nodes must be place correctly so that the dBm levels between each mesh node are adequate so that no device will struggle to connect to the network.
Common problem in a network can be caused by low dBm level. If the dBm level is too low, video will buffer and device will disconnect with an increased amount of error. Interference from other device can make it seem like the signal is weak.
To fix this problem, change the channel or change the frequency band of the WiFi signal. Only if this does not work will individuals need to purchase new hardware. With the signal map of the home, individuals can purchase the correct hardware for the area in the house.
Signal analyzer will detect the problems with the network. If a problem is in only one room, use a WiFi extender. For multi-level home, use a mesh network system.
Routers with a stronger signal output will provide better dBm level throughout the house. Always measure the dBm levels of the device and adjust the router placement before buying new hardware. By measuring the dBm levels of the device and acting on the information provided, individuals will have a strong and reliable network.