User's Manual

DragonWave Inc.

Horizon Compact Release 1.01.01 Wireless Ethernet Product User Manual – Volume 1

The radio frequency polarity is indicated by an arrow molded into the Horizon Compact housing. Attach

the Horizon Compact to the antenna so that the arrow points either vertically or horizontally, as required,

when the assembly is attached to the mounting post or tower. With the arrow horizontal (pointing to the

left) – horizontal polarity; with the arrow vertical (pointing upwards) – vertical polarity. For licensed

frequencies, the required radio polarity is defined in your licensing documentation.

Figure 7-2 Horizon Compact polarity marker

7.1.2 Unlicensed Radio Bands (UL24)

For unlicensed radio bands, regulatory bodies require that both radios in a link have to be cross-

polarized. This means that the antenna polarity of the transmitter at one end of the link is vertical and the

transmitter polarity at the other end it is horizontal.

The radio at one end of the link transmits vertically polarized and receives horizontally polarized, while the

other end transmits horizontally polarized and receives vertically polarized.

The radio frequency polarity is indicated by an arrow molded into the Horizon Compact housing. Attach

the Horizon Compact to the antenna so that the arrow points either vertically or horizontally, as required,

when the assembly is attached to the mounting post or tower. With the arrow horizontal (pointing to the

left) – horizontal polarity; with the arrow vertical (pointing upwards) – vertical polarity. For unlicensed

frequencies, one end of the link has to be vertically polarized and the other horizontally polarized (cross-

polarized). It does not matter which end of the link has a specific polarization.

Caution

For 24 GHz Unlicensed Band, radios MUST be cross-polarized

i.e. Vertically polarized at one end and horizontally polarized at the other.

It does not matter at which end either radio is installed.

Polarity Marker

This Horizon unit

is shown mounted

for horizontal

polarity (arrow

horizontal)