Air Band Stack Dipole Array Antennas

Constructed from either aluminium or stainless steel, these 2 stack and 4 stack dipole arrays cover the full Air Band frequency range 118 to 136 MHz at less than 1.5:1 VSWR.

• S2B42/1C is the aluminium 2 stack array delivering 4.5 dBd gain.
• S4B42/1C is the aluminium 4 stack model with higher 7.5 dBd gain.
• For a fully stainless steel array, simply add the letters 'SS' to the model code.

Each dipole in the array is end fed in phase via a power divider neatly concealed inside the 50 mm diameter mount tube. Terminated with an
N-Female connector, these stack arrays are rated for up to 250 watts input power.

The dipole spacing of both the 2 stack and 4 stack models is calculated to give maximum accumulated gain and minimum side lobes in an array form.

For the 2 stack model, two clamps will be required to secure the array top and bottom. For the 4 stack model, three clamps are recommended to secure the antenna top, centre and bottom.

There are various methods of mounting these stack dipole arrays to a mast or tower. Clients are invited to consult ZCG Scalar for advice about the heavy duty clamps available to best suit their mounting arrangement.

Coaxial feeder cable, connectors and other accessories are available to complete your base station antenna installation.