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We offer the best product range of 136-174 Mhz Double Stacked Dipole Array Antenna, 40-6000 Mhz Sma Telescopic Antenna, 136-174 Mhz 0 dBi Gp Ground Plane Antenna, 136-174 Mhz 3 dBi Gp Ground Plane Antenna and 68-88 Mhz 0 dBi Gp Ground Plane Antenna.
DESIGN FEATURES :The DW-SD3150 high performance VHF lower band stacked dipole array is designed for use with highly populated radio sites requiring long haul omni-directional coverage. The DW-SD3150 is heavy duty stacked dipole array features, wide bandwidth, high gain, high power handling capacity, low VSWR, low noise performance and null filling coverage with omni-directional characteristics. This stacked dipole array is highly suitable as base station antennas for PMR, Repeater and Paging sites. CONSTRUCTIONS: The SD3-150 Stacked Dipole Array consists of TWO folded dipoles stacked vertically, fed in phase. This Stacked Dipole Antenna operates at D.C. ground for protection against lightning. Termination of phasing harness cable sealed by heat shrinking tube making stacked dipole antenna waterproofing. The 3.6 Meters (12 feet) long central mast for mounting the dipoles is shipped in two sections of 1.8 Meters (6 feet) each for easy of shipping. The stacked dipole antenna is suitable to mount on the top of tower and is supplied with two mounting brackets.
RADIATION PATTERN :When the TWO dipoles are arranged 180 degrees apart around the central mast, 3dBd. (5.15dBi) omni-directional radiation pattern results. Aligning the TWO dipoles collinearly (facing in one direction) a 6dBd. (8.15dBi) offset radiation pattern is obtained. The radiation pattern can be changed in the field by use of common hand tools. ELECTRICAL SPECIFICATIONS: Frequency Range 136 -174 MHz. Gain 3dBd Omni /6dBd Offset Bandwidth 10 MHz. Polarization Vertical Input Impedance 50 Ohms. Radiation Pattern Omni Directional Vertical Beam-width –Half Power Points 36 Degrees VSWR – Less than 1.5 : 1 RF Power Handling Capacity 500 watts. Input Termination N-Female Lightning Protection Direct Ground
MECHANICAL SPECIFICATIONS : Mounting Hardware Stainless Steel Wind Rating 200 Km/Hr. Overall Length 3.6 Meters (12 feet) Support Pipe Aluminum – Outer Diameter 51 mm Dipoles Aluminum – Outer Diameter 12.7 mm Shipping Length 1.8 Meters (6 feet) Maximum Mount Pipe Diameter 52 mm (2 Inches) Gross Weight 10 Kgs. ENVIRONMENTAL SPECIFICATIONS: Operating Temperature (-)30 to +70 Degrees Celsius Storage Temperature (-)40 to +80 Degrees Celsius Humidity 0 to 95% RH.
Product Features
Product Specifications
A 0 dBi 136 MHz GP Antenna is a ground plane (GP) antenna designed for operation at 136 MHz within the VHF band. With a gain of 0 dBi, it offers enhanced signal strength and extended coverage compared to standard GP antennas. Featuring a vertical radiator and ground radials, it provides omnidirectional radiation, making it ideal for land mobile radio, public safety, and commercial communication systems. Built for outdoor use, it ensures reliable performance in various weather conditions.
A 0 dBi 68-88 MHz GP Antenna is a ground plane (GP) antenna designed for operation at 68-88 MHz within the UHF band. With a gain of 0 dBi, it offers enhanced signal strength and extended coverage compared to standard GP antennas. Featuring a vertical radiator and ground radials, it provides omnidirectional radiation, making it ideal for land mobile radio, public safety, and commercial communication systems. Built for outdoor use, it ensures reliable performance in various weather conditions.
A 3 dBi 68-88 MHz GP Antenna is a ground plane (GP) antenna designed for operation at 68-88 MHz within the UHF band. With a gain of 3 dBi, it offers enhanced signal strength and extended coverage compared to standard GP antennas. Featuring a vertical radiator and ground radials, it provides omnidirectional radiation, making it ideal for land mobile radio, public safety, and commercial communication systems. Built for outdoor use, it ensures reliable performance in various weather conditions.
A 6 dBi 136 MHz GP Antenna is a ground plane (GP) antenna designed for operation at 136 MHz within the VHF band. With a gain of 6 dBi, it offers enhanced signal strength and extended coverage compared to standard GP antennas. Featuring a vertical radiator and ground radials, it provides omnidirectional radiation, making it ideal for land mobile radio, public safety, and commercial communication systems. Built for outdoor use, it ensures reliable performance in various weather conditions.
A 6 dBi 68-88 MHz GP Antenna is a ground plane (GP) antenna designed for operation at 68-88 MHz within the UHF band. With a gain of 6 dBi, it offers enhanced signal strength and extended coverage compared to standard GP antennas. Featuring a vertical radiator and ground radials, it provides omnidirectional radiation, making it ideal for land mobile radio, public safety, and commercial communication systems. Built for outdoor use, it ensures reliable performance in various weather conditions.
ELECTRICAL SPECIFICATIONS : Frequency Range 1.5 - 30 MHz. Gain Unity Bandwidth Full 1.5 to 30 MHz. Polarization Horizontal or Inverted "V" Input Impedance 50 Ohms. Radiation Pattern Omni-directional VSWR 2 : 1 RF Power Handling Capacity 500 Watts. Input Termination N-Female Lightning Protection Direct Ground MECHANICAL SPECIFICATIONS: Net Weight 4 Kgs. (antenna only) Wind Rating 160 Km/Hr. Balun Base Diameter 65 mm (Balun) Base Material Nylon (Balun) Overall Length 23 Meters. Shipping Box Size 0.60 x 0.15 x 0.15 Meter Dipole Materials Twisted Copper with Insulator Spreaders Materials PVC Pipe Insulator Materials Nylon Recommended Mast Height 9 Meters (30 Feet) Distance between Mast 25 Meters ENVIRONMENTAL SPECIFICATIONS: Operating Temperature (-)25 to +65 Degrees Celsius Storage Temperature (-)40 to +75 Degrees Celsius Humidity 0 to 95% RH.
MILITARY LOG PERIODIC DIPOLE ANTENNA Design Features: The LPL-20-1000 log periodic dipole antenna use 6063T6 ultra corrosion resistant architectural anodized aluminum alloy and designed to provide wideband directional transmission/reception of radio signals from 20-1000 MHz bands. The complete antenna is supplied with powder coating to protect it further from severe environmental conditions. The extra spacers are used between the support booms to improve mechanical durability of antenna. The antenna can be assembled in less than 10 minutes by two technicians. This log periodic dipole antenna system is particular suitable for transmission, reception, monitoring, scanning and jamming applications due to its broad band design feature. The shipping length of antenna is 10 feet making it highly suitable for mobile and tactical application. Two mounting brackets are fitted on the support boom one for horizontal polarization and other for vertical polarization. Constructions: The LP-20-1000 assembled log periodic antennas outer-most dimensions are 6.5 meters (21.3 feet) long and 7.5 meters (24.5 feet) wide. The antenna has removable elements, the longest of which is 3.5 meters. All elements are supplied in two segments for easy of shipping and handling. Similarly the support boom of antenna is supplied in two sections for easy of shipping/transportation and handling. The elements are attached via stainless steel stud systems with spring washer at points along the boom. The log periodic antenna operates at D.C. ground with low resistance discharge path for protection against lightning and immunity to noise. All the screws, nuts and bolts of log periodic dipole antenna are made of type 316 marine grade stainless steel. Specially designed mounting arrangement results in fast installation. The polarization can be changed from horizontal or vertical and vice-versa. Electrical Specifications: Frequency Range 20-1000 MHz Gain 9 dBi Bandwidth Entire Band Polarization Vertical or Horizontal Input Impedance 50 Ohms Radiation Pattern Directional Horizontal Beamwidth -Half Power Points 110 +/-10 Degrees Front to Back Ratio 14 +/-2 dB. VSWR - Equal To or Better Then <1:3.0 RF Power Handling Capacity 1000 Watts Input Termination N-Female Lightning Protection Direct Ground Mechanical Specifications: Antenna Materials 6063T6 Aluminum Mounting Hardware -Materials Marine Grade Stainless Steel Wind Rating 180 KMPH Overall Length 6 Meters Shipping Length 3.75 Meters Support Boom - Material - O.D. Aluminum Square Tube Elements - Materials - Cross Section - Outer Diameter Aluminum Round Tube Insulator Material Teflon& Delrin Maximum Mount Pipe Diameter 50-102 mm ( 2-4 Inches) Gross Weight 40 Kgs
Mr. Shiva Kshatriya (Defence Wireless)
C-113, Bindapur Village, Uttam Nagar, Delhi - 110059
https://www.defencewireless.co.in
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