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S.1H-127-4

Dipole ArraysS.1H-127-4

Heavy duty 4-stacked dipole array 117 - 137 MHz

Description

  • Four Heavy Duty, VHF Center Fed Dipole antennas for VHF Aircraft Band applications, connected with a phasing harness to form a high gain, stacked array.
  • Produced to the highest quality standards, these robust antenna designs will insure reliable operation in harsh environmental conditions.
  • Former Skymacasts brand product.

Specifications

Electrical
Model S.1H-127-4
Frequency 117 - 137 MHz
Max. Input Power 1000 W
Polarisation Vertical
3 dB Beamwidth, E-Plane 20 °
3 dB Beamwidth, H-Plane 180 °
Impedance 50 Ω
Gain 7.3 dBd (9.4 dBi)
VSWR < 1.5:1
Front-To-Back Ratio > 5.5 dB
Antistatic Protection All metal parts DC-grounded (Connector shows a DC-short)
Mechanical
Elements 19 x 1.6 mm dia. / 0.75 x 0.06 in.
wall aluminium alloy grade 6063T6
Connection(s) N(f)
Boom Material 48.4 x 4.5 mm dia. / 1.91 x 0.18 in.
wall aluminium alloy grade 6082T6
Fasteners Stainless steel grade A2-70
Length Approx. 6800 mm / 267.72 in.
Element Clamps Cast aluminium alloy Diecast Al / Zinc alloy
Wind Load 795 N (160 km/h)
Weight Approx. 40 kg / 88.18 lb.
Balun Encapsulant Polyurethane Resin U-600

Diagram and Mounting

RADIATION PATTERNS

E-Plane | 127 MHz E-Plane | 127 MHz

RADIATION PATTERNS

H-Plane | 127 MHz H-Plane | 127 MHz

Ordering Designations

Model Product No. Frequency
Heavy duty 4-stacked dipole array S.1H-127-4 117 - 137 MHz

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