Description

• 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.

Specification

Electrical
Model	S.M2-127
Frequency	117 – 137 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	All metal parts DC-grounded (Connector shows a DC-short)

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. 19 kg / 41.88 lb.
Balun Encapsulant	Polyurethane Resin U-600

Ordering Codes

Model	Product No.
2-stack dipole phased array 117 – 137 MHz	S.M2-127