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SIDE MOUNT DIPOLE
Design Features: The SMD-75 side mount dipole antenna is a robust antenna with low VSWR and high gain covering the entire band from 66-88 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-75 side mount dipole antenna operates at D.C. ground for protection against lightning and immunity to noise.
Constructions: The SMD-75 side mount dipole consists of single folded dipole. The antenna maintains constant gain and VSWR over its bandwidth of 5 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 | 66 - 88 MHz. |
| Gain | 3 dBd. |
| Bandwidth | 5 MHz. |
| Polarization | Vertical |
| Input Impedance | 50 Ohms |
| Radiation Pattern | Directional |
| Beamwidth -3dB. | 65 Degrees (Vertical) |
| Horizontal Beamwidth -Half Power Points | 180 Degrees |
| Front to Back Ratio | 12 dB. |
| VSWR - Equal To or Better Then | 1:1.5 |
| RF Power Handling Capacity | 250 Watts |
| Input Termination | N-Female |
| Lightning Protection | Direct Ground |
| Mechanical Specifications: | |
| Antenna Materials | All Aluminum |
| Mounting Hardware -Materials | Stainless Steel |
| Wind Rating | 200 Km/Hr. |
| Support Pipe Aluminum - Outer Diameter. | Aluminum - 38 mm |
| Dipoles Aluminum - O.D. | Aluminum - 12.7 mm |
| Shipping Length | 2.2 M x 0.6 M |
| Maximum Mount Pipe Diameter | 51 mm (2 Inches) |
| Gross Weight | 4 Kgs. |
| Environmental Specifications: | |
| Operating Temperature | (-)30 to +70 Degrees Celsius |
| Storage Temperature | (-)40 to +80 Degrees Celsius |
| Humidity | 0 to 95% RH |