S.M2-145

2-stack dipole phased array 135 – 155 MHz

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S.M2-145
Electrical
Model S.M2-145
Frequency 135 – 155 MHz
Max. Input Power 500 W
3 dB Beamwidth, H-Plane 180 °
Polarisation Vertical
3 dB Beamwidth, E-Plane 36 °
Impedance 50 Ω
Gain 5 dBd (7.2 dBi)
VSWR < 1.5:1
Front-To-Back Ratio 5.5 dB
Antistatic Protection DC Grounded
Environmental
Ingress Protection IP68
Mechanical
Elements 12.7 x 1.6 mm dia. / 0.5 x 0.06 in.
wall aluminium alloy grade 6063T6
Connection(s) N(f) on RG213/U cable
Boom Material 63.5 x 6.3 mm dia. / 2.5 x 0.25 in.
wall aluminium alloy grade 6082T6
Fasteners Stainless steel grade A2-70
Length Approx. 3500 mm / 137.79 in.
Element Clamps Diecast Al / Zinc alloy
Historic Brand Skymasts
Dimensions Approx. 3500 x 630 mm /
137.79 x 24.80 in.
Wind Load 458 N (160 km/h)
Weight Approx. 15 kg / 33.07 lb.
Balun Encapsulant Polyurethane Resin U-600
  • The S.M2 is an array of phased centre fed folded dipoles mounted on an aluminium mast for PMR / Trunked radio applications.
  • Each folded dipole balun assembly and associated harness junction is completely encapsulated in poyurethane resin, totally preventing moisture ingress.
  • At VHF the antenna disassembles and flat packs for ease of shipping.
  • Former Skymasts brand product.

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2-stack dipole phased array 135 – 155 MHz S.M2-145

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