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Elevated Tri-band Antenna Masts System (ETAMS), 8.5 m, 30-88 MHz, 225-450 MHz, 1200-2600 MHz


  • Tactical Tri-band Antenna and 8.5 m mast kit
  • Direct replacement for legacy OE-254 with extended frequency capability to support modern networking waveforms
  • Antenna frequency range:
    • VHF (30-88 MHz)
    • UHF (225-450 MHz)
    • L-Band (1200-2600 MHz)
  • Single port Antenna design reduces cabling to antenna
  • High isolation between bands
  • Antenna tripod included for ground level deployment
  • Coaxial Cable and Triplexer included
  • 8.5 m manportable support mast
  • Complete kit supplied in one compact bag
  • System can be deployed in less than 10 minutes
Frequency Range VHF:   30-88 MHz
UHF:   225-450 MHz
L-Band:   1200-2600 MHz
VSWR VHF:   < 3.5
UHF:   < 3.0
L-Band:   < 3.0
Nominal Impedance 50 Ω
Power Rating VHF:   75 W
UHF:   75 W
L-Band:   50 W
Radiation Pattern Omnidirectional within ± 2 dB
Polarisation Vertical
Connector N type female
Design VHF monopole, UHF dipole, L-S band dipole elements.  Radiating elements completely enclosed in epoxy/fibreglass laminate.  Metal parts are brass, aluminium and stainless steel.
Height 3.1 m – Antenna + Tripod
Weight Whip:   1.4 kg
Tripod:   3.8 kg
Finish Polyurethane lacquer
Temperature Range – 55°C to + 71°C
Mast Sections Fibreglass tube outside diameter Ø 44.5 mm, 132 cm long.
Green, tan or black paint finish.
Total Mast Kit Weight 14.9 kg
Top Interface Ø 39 mm OD spigot, 100 mm long (to fit 40 mm socket)
Guys 4 x upper and 4 x middle guys.
3 mm braided rope on winder with adjustable lock and snap hooks each end.
Guy Pegs 5 pcs steel
Base Support Baseplate
Wind Speed (Maximum) 96 km/h, including gust
Temperature Range – 55°C to + 55°C