Wireless Calculator

Wireless LAN Calculator

Various questions can arise when setting up a wireless connection. For example, what is the transmission power available over a given distance, what is the maximum possible separation of a transmitter and receiver while maintaining a certain link quality, or how do you choose a suitable model from our various antennas? The TP-LINK wireless calculator will provide you with answers to these questions. Actual wireless connection will vary because of the network conditions and environment factors, and the results calculated by the program is for your reference only.

Before we start using the Wireless Calculator, it is useful to know how it works.

The TP-LINK wireless calculator contains three different functions:

1. Distance Calculation
2. Link Budget Calculation
3. Antenna Selection

Which function should you choose?

If you want to see the possible maximum separation of the transmitter and receiver while maintaining a certain link quality at different data transfer rates, you can choose the distance calculation function.

If you want to see the reliability of your wireless connection while the transmitter and receiver are working at a certain distance, you can choose the link budget calculation function.

If you want to find suitable transmitter and receiver antennas from our various antennas of which can meet the need of getting a good performance at a given distance, you can choose the function of antenna selection.

Distance Calculation

The majority of the power of a radio signal will be lost in the air. Even in a perfect vacuum, a radio wave loses some of its energy since some energy is always radiated in directions other than the link axis. The Free Space Path Loss (FSPL) measures the power loss in free space without any obstacles. So for end-users, it is important to know the approximate distance between the transmitter and receiver while maintaining a certain link quality at different data transfer rates.

Link Budget Calculation

A wireless link budget for a point-to-point radio link accounts for all the gains and losses from the radio transmitter (source of the radio signal), through cables, antennas and free space to the receiver. Estimating the value of the "power" in the different parts of the radio link is necessary to be able to make the best design and the most adequate choice of equipment.

Link budget is often referred to as Fade Margin or System Operating Margin in the calculation. The exact amount of the fade margin required for a wifi system depends on the desired reliability of the link, but a good rule of thumb is 20-30 dB.

For uses, especially those who want to know the reliability of their wireless connection when the transmitter and receiver are working at a certain distance from each other, this function is ideal.

Nota:

• Eccellente: il collegamento dovrebbe funzionare con un`elevata affidabilità, ideale per applicazioni che richiedono un`alta qualità del collegamento. Il livello del Fade Margin è più di 22dB.

• Buono: il collegamento dovrebbe garantirvi una buona esperienza di navigazione. Il livello del Fade Margin è tra 14~22dB.

• Normale: il collegamento potrebbe non essere stabile in modo continuativo nel tempo, ma dovrebbe funzionare correttamente. Il livello del Fade Margin è di 14dB o meno.

Antenna Selection

For outdoor applications, an antenna is a very important device. A suitable antenna can help you maintain reliable link quality while at the same time save your money. For end-users, it is important to find a suitable antenna. In this function, you can find a suitable transmitter or receiver antenna from the variety of the antennas that TP-LINK offers to find the right antenna for you that will maintain a certain link quality at the required distance.