818-1
Sidemount FM Dipole
818 Series
These vertically polarized antennas for FM broadcasting applications are intended for use where low wind loadings are required. They are designed to be sidemounted to a tower leg or pole and optional mounting brackets are available for this purpose.
The 818 series are fabricated from stainless steel and will handle up to 5kW per bay.
Multiple element arrays are supplied as a complete package including power dividers and distribution cables. An optional input tuner ensures optimum VSWR performance after installation as it enables the effects of tower steelwork to be eliminated. Beam tilt and null fill can be provided on request.
The 818 series can be arrayed in multiple bays as required.
The 818 series are fabricated from stainless steel and will handle up to 5kW per bay.
Multiple element arrays are supplied as a complete package including power dividers and distribution cables. An optional input tuner ensures optimum VSWR performance after installation as it enables the effects of tower steelwork to be eliminated. Beam tilt and null fill can be provided on request.
The 818 series can be arrayed in multiple bays as required.
FEATURES / BENEFITS
- Rugged construction for maximum corrosion protection
- Broadband operation
- Multichannel use if required
- Optional pressurization
- Low windload to minimize tower or mast costs
- Vertical polarization
- Temperature range -40 to +60 degrees C available. .
818 Series Antennas showing 818-4
Technical features
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Azimuth Radiation Pattern (Typical)
Vertical Radiation Pattern
External Document Links
Notes
Note 1 When antenna is mounted on a mast/tower with a face width of less than 150mm (5.9"").
Note 2 Input power is limited to 5kW if a 7/8"" connector is used, 4.0kW for 7-16 DIN connector.
Note 3 Connecting cables are not included in calculations - 0.03sq m. per metre length should be allowed.
Note 4 Power divider included and considered adjacent to antennas.
Note 5 Calculated in accordance with AS1170-1981, Part 2 ""SAA Loading Code - Wind Forces"".
Note 2 Input power is limited to 5kW if a 7/8"" connector is used, 4.0kW for 7-16 DIN connector.
Note 3 Connecting cables are not included in calculations - 0.03sq m. per metre length should be allowed.
Note 4 Power divider included and considered adjacent to antennas.
Note 5 Calculated in accordance with AS1170-1981, Part 2 ""SAA Loading Code - Wind Forces"".