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 Model SMD-150 136 - 174 MHz. 3 dBd. Gain 


Design Features: The SMD-150 Side Mount Dipole Antenna is a robust antenna with low VSWR and high gain covering the entire band from 136-174 MHz. The side mount dipole antenna can be mounted on the side of a tower in Vertical polarization with the help of supplied stainless steel mounting hardware. The SMD-150 Side Mount Dipole Antenna operates at D.C. ground for protection against lightning and immunity to noise.

Constructions: The SMD-150 side mount dipole consists of single folded dipole. The antenna maintains constant gain and VSWR over its bandwidth of 10 MHz., making it highly suitable for single or multi-frequency systems. The N-Female antenna termination is fixed at a flying lead of RG-213 RF coaxial cable to ensures complete waterproofing and many years of maintenance free operation.

Electrical Specifications:
Frequency Range 136 - 174 MHz.
Gain3 dBd.
Bandwidth10 MHz.
Input Impedance50 Ohms.
Radiation PatternDirectional
Beamwidth -3dB.65 Degrees (Vertical)
Horizontal Beamwidth -Half Power Points160 Degrees
Front to Back Ratio12 dB.
VSWR - Equal To or Better Then1:1.5
RF Power Handling Capacity250 Watts
Input TerminationN-Female
Lightning ProtectionDirect Ground

Mechanical Specifications:
Antenna MaterialsAll Aluminum
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Support Pipe Aluminum - Outer Diameter. Aluminum - 38 mm
Dipoles Aluminum - O.D.Aluminum - 12.7 mm
Shipping Length1 x 0.30 Meters
Dipole MaterialAluminum
Maximum Mount Pipe Diameter 51 mm (2 Inches)
Gross Weight2 Kgs.

Environmental Specifications:
Operating Temperature(-)30 to +70 Degrees Celsius
Storage Temperature(-)40 to +80 Degrees Celsius
Humidity0 to 95% RH