Unoccupied channels can be ranked in relation to nearby occupied or unoccupied channels.

Remodulation effects do not influence the adjacent channels.

Note that Wi-Fi channels overlap with nearby channels.

In a preferred embodiment, several adjacent channels (24) are aligned to form elongated channels (24) which intersect one another in a grid-like fashion.

A second IF amplifier (21) includes a second adjacent-channel sound carrier trap.

As new channels are added at the lower frequency channel spacing, the powers of both neighbouring channels are reduced to the normal power level.

Because rapid transmissions in the transmittal signal are avoided, adjacent channel interference is reduced.

Said fabric texture determines for each transverse channel or cell an internal porous wall interconnecting with the neighbouring channels.

The nearby channels may be ranked in terms of the signal strength content in relation to the channel being evaluated.

If the signal is loud enough to affect the level in the neighbouring channels, gain will also be adjusted in those channels.

Consequently, adjacent channels overlap and interfere with each other.

The present invention relates to a molecular pump with air suction grooves which are arrayed parallel to each other, wherein a width of the air suction grooves near the rotor shaft is narrow and an air passage between neighbouring suction grooves is wide.

The phase stabilisation circuit in the transmitter therefore can maintain a desired stable optimum phase alignment between neighbouring channels.

A fluid pump for droplet deposition having an array of channels separated by such actuators can be operated with each channel acting substantially independently of its neighbours.

For starters, channels 1, 6 and 11 are most frequently used in the 2.4GHz spectrum, as they are the only three channels that do not overlap one another.