WISCO international (Sinclair- Antennas/ SD310C-4HD / SD310C-8HD)

SD310C-4HD

The SD310C-4HD is a 4-bay version of the SD310CHD, incorporating all the features of the basic model into a high gain antenna needed in certain system applications.
The SD310C-4HD is supplied with either quarter-wave or half-wave dipole-to-mast spacing. Heavier duty, downtilt and higher power models are available on special order.

SD310C-8HD

The SD310C-8HD is an 8-bay version of the SD310CHD, incorporating all the features of the basic model into a very high gain antenna needed in certain system applications.
The SD310C-8HD is supplied with either quarter-wave or half-wave dipole-to-mast spacing.
Heavier duty, downtilt and higher power models are available on special order. Site specific mounting hardware is necessary with these antennas. Please consult your Sinclair representative to determine suitable clamps for your application.

Electrical		SD310C-4HD	SD310C-8HD
Frequency Range	MHz	406-512*
Bandwidth 1.5:1 VSWR	MHz	106
Polarization	dB	Vertical
Pattern		Offset
Nominal Gain	dBd	8 to 8.5	11 to 11.5
Horizontal Beamwidth (nom.) (half power points)		210
Vertical Beamwidth (nom.) (half power points)	Deg	17	8
Power Rating	Watts	300
Lightning Protection		DC Ground
Termination		'N' Male

Mechanical		SD310C-4HD	SD310C-8HD
Height	in (mm)	114 (2,895)	204 (5,182)
Weight	lb (kg)	15 (6.8)	30 (13.6)
Rated Wind Velocity	mph (km/h)	175 (282)
Rated Wind Velocity with 1.5 in (12.7mm) radial ice	mph (km/h)	110 (177)
Horizontal Thrust at rated wind velocity and ice load	lb (kg)	214 (97)	500 (227)
Mounting Information	No clamps supplied. Base is 2.375 in (60.3 mm) O.D support pipe