WISCO International

Sinclair Technologies

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Ground Plane Antennas

SG-1O1

The SG101 is designed for dependable performance and versatility. It has a relatively wide bandwidth and is field adjustable to any frequency in the 25-40 or 30-50 MHz range. A chart is included with the antenna to facilitate adjustment of the vertical radiator and ground rods for the frequency required. Because of this feature, it is an ideal antenna for leased system service since it can be reused and tuned to resonance at each new system frequency as needed.
Low band version (25-40 MHz) is available on request.

SG-101C

The SG-101C is a rugged ground plane antenna designed for severe climatic conditions. The driven element is at ground potential and ground rods are sand damped to reduce vibration. This extremely rugged antenna has established a record of fine performance under adverse conditions for many years with users who demand performance and dependability.

SPECIFICATIONS

Electrical

SG101

SG-101C

Frequency Range

MHz

30-50 30-88
Bandwidth
1.5:1 VSWR
2.0:1 VSWR
MHz 3%
5%
2.5%
6.2%
Polarization dB Vertical
Pattern   Omnidirectional
Nominal Gain dBd Unity
Vertical Beamwidth (nom.)
(half power points)
Deg 87
Power Rating Watts 300 450
Lightning Protection   DC Ground
Termination   'N' Male

Note:1- VSWR is referenced to 50 Ohms
        2- Specify frequency when ordering

Mechanical SG101 SG-101C
Height in (mm)

98 (2,489)

115 (2,921)

Weight lb (kg) 15 (6.8) 35 (15.9)
Rated Wind Velocity mph (km/h) 100 (161) 0(178)
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) 179 (77.1)
at 40 MHz
108 (49.0)
at 40 MHz
Mounting Information Two clamps are provided to mount antenna on a 1.9 in (48.3 mm) to 2.38 in (60.3 mm) O.D support pipe
WISCO International, Inc. - MIAMI, FL U.S.A.
Fax: (954) 370-3997 | E-mail: wiscointl@wiscointl.com

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