Radio signals are basically the propagation of energy using EM waves.

Modulating your radio signal allows signals at the same frequency to transmit simultaneously on different channels.

To ensure a good wireless connection, your signal-to-noise ratio must be minimal.

Attenuation is the weakening of a radio signal and can be caused by many natural phenomena.

In the U.S., the FCC regulates all frequency spectrums for radio communication.

Except for a few unlicensed bands, all radio transmitters require an FCC license.

Low power, unlicensed transmitters can be used without a license, but there are several rules that must be adhered to.

EM radiation can cause health problem in high doses.

The IEEE 802.x standards have been developed as a common set of standards to design network communications.

The IEEE 802.11x standard covers the data-link and physical layers of the OSI model.

Each of the IEEE 802.11x standards has a specific number and frequency of channels that can be used.

IEEE 802.11 defines the use of FHSS, 802.11a uses OFDM, and 802.11b uses DSSS.

When planning your wireless coverage, always plan for overlapping areas of coverage.

Carefully choose your 802.11x standard based on the needs for your environment and the benefits of each standard.

Choosing the antennas that you will implement is very important.

It is critical to perform...