WISCO international (Sinclair- Antennas/ SD-210C)

SD-210C

The SD210 series of antennas is unique in its high efficiency and exceptionally wide bandwidth, covering the frequency ranges of 108-137 or 138-174 MHz at a VSWR of 1.5:1 or better.
Because of its bandwidth and very low intermodulation response, the SD-210 series is perfectly suited for multicoupled systems.
Two model variants of this rugged antenna are available: the SD210C with external cable harness enabling its pattern to be changed in the field; and the SD210C, which cannot be adjusted in the field as the cable harness is inside the mast and dipole booms.
This version is available in either quarter-wave or half-wave dipole-to-mast spacing. Heavier duty and/or higher power ratings are available on special order.

SD210-2

The SD210-2 is a 2-bay version of the SD210, incorporating all the features described above into a medium gain antenna.
Again, two model variants of this rugged antenna are available: the SD210A-2, with external cabling, allowing field adjustment of its pattern; and the SD210C-2, available with fixed patterns of quarter-wave or half-wave dipole-to-mast spacing.
Site specific mounting hardware is necessary with these antennas.
Please consult your Sinclair representative to determine suitable clamps for your application.

Electrical		SD-210	SD-210-2
Frequency Range	MHz	138-174
Bandwidth 1.5:1 VSWR	MHz	36
Polarization	dB	Vertical
Pattern		Offset
Nominal Gain	dBd	2-2.5	5-5.5
Horizontal Beamwidth (nom.) (half power points)	Deg	210
Vertical Beamwidth (nom.) (half power points)		68	34
Power Rating	Watts	200	300
Lightning Protection		DC Ground
Termination		'N' Male

Mechanical		SD-210	SD-210-2
Height	in (mm)	60 (1,524)	120 (3,048)
Weight	lb (kg)	9 (4.1)	16 (7.3)
Rated Wind Velocity	mph (km/h)	175 (282)	125 (201)
Rated Wind Velocity with 0.5 in (12.7mm) radial ice	mph (km/h)	85 (137)
Horizontal Thrust at rated wind velocity and ice load	lb (kg)	55 (25)	100 (45.4)
Mounting Information	No clamps supplied. Base is 1.9 in(48.3) O.D. support pipe.