TP-Link Bluetooth AC1200 Archer T5E Wi-Fi PCIe Adapter

Bluetooth is a short-range wireless communication technology standard used for exchanging data and voice between digital devices using UHF radio waves in the 2.4 GHz band.

Technical Detail

Managed by the SIG, it uses Adaptive Frequency Hopping (AFH) to reduce interference. It distinguishes between Bluetooth Classic for streaming and BLE for low-power IoT applications.

Advantages

• Minimal power consumption.
• Global hardware compatibility.
• Robust encrypted security.

Note: Effective range varies by device class, typically between 1 and 100 meters.

dBi (decibels relative to isotropic) is a logarithmic unit of measure that expresses the gain of an antenna compared to a theoretical isotropic antenna that radiates energy uniformly in all directions.

Imagine a light bulb that shines in all directions equally. If you put a reflector on it so the light concentrates in a single spot, that light will be much more intense there. The dBi measures how much extra "strength" the signal gains by focusing it in a specific direction instead of wasting it everywhere.

Directivity and Energy Focus

A higher dBi value does not mean the antenna produces more energy, but rather that it redirects existing energy more precisely, narrowing the beam angle to reach greater distances.

Advantages

• Increased range for wireless links.
• Reduction of side and rear interference.
• Better signal-to-noise ratio in the main direction.

A higher dBi value indicates a more directional and longer-range signal.