SiSo Rooftop Antenna

SiSo Rooftop Antenna

The SiSo Rooftop Antenna series has been designed specifically for use on trains, trams and buses.

The SiSo range covers 698-960/1710-6000MHz with optional GPS/GNSS with a 26dB LNA. The radiating element is DC grounded and, in versions with a GPS module it is protected by an integrated gas discharge surge arrestor. Housed in a high impact, flame retardant polycarbonate housing, the SiSo series is weatherproof and environmentally sealed to IP67, ensuring that the antenna’s performance is never compromised.

Technical Features

  • Cellular 700-6000MHz.  Covers all LTE, Wi-Fi & WiMAX frequencies used worldwide including GSM-R
  • UHF versions covering 380-430MHz OR 450-470MHZ are also available on request
  • Optional active GPS/GLONASS antenna with built in surge arrestor
  • Compliant with rail standards EN45545, EN50155, EN61373 & EN50121
  • Rugged flame retardant housing with Ultem 1000 PEI & Aluminum base
  • DC grounded antenna
  • Industry standard 4 hole mount
  • Rated IP67 (When installed according to the installation instructions)

Applications

  • High speed trains & locomotives
  • Trams
  • Buses / coaches
  • Mass transit systems
  • Heavy duty machinery (quarry trucks etc.)

Electrical Data

  • Frequency Range (MHz): 698-960 / 1710-6000 MHz
  • Peak Gain Isotropic**:

           698-960MHz: 5dBi

           1710-2700MHz: 7dBi

           4900-6000MHz: 10dBi

  • Polarisation: Vertical
  • Typical VSWR* : <2.5:1
  • Pattern: Omni-directional
  • Impedance: 50 Ω
  • Max Input Power (W): 60

*Measured on a 600 x 600mm (2' x 2') ground plane with 1m (3') of low loss cable.

**Measures on a 600 x 600mm (2' x 2') ground plane without cable.

GPS Data

(Optional)
  • Frequency Range: 1560-1612
  • Impedance 50 Ω
  • LNA Gain 26dB + 3
  • Polarisation: Right Hand Circular
  • Operating Voltage: 3-5V DC
  • Current (Typical): 15mA
  • GPS Antenna EMC Compliance: EN 301 489-1 V1.81 & EN 301 489-3 V1.6.1, EN 50121-3-2:2015

Mechanical Data

Dimensions

Height (N/inc pad): 110mm (4.33')

Width: 87mm (3.42')

Length: 260mm (10.23')

Environmental Specification

  • Operating Temp: -40oC / +80oC (-40oF / +176oF)
  • Radome Material: Ultem 1000
  • Radome Flame Retardance Rating: V0 (UL94)
  • Base Material: Cast Aluminum
  • Sealing: IP67 (When installed according to the installation instructions)

Approvals Data

Regulatory Approvals
  • EN 50155:2007 (Dry heat & Cooling)
  • EN 61373:2010 & EN 50155:2007 (Shock & Vibration)
  • EN 45545:2013 (Fire & Smoke)

 

Mounting Data

Fixing: 4x mounting holes to suit M12 bolts

Termination Data

Termination
  • Comms: 2 x N (female) - DC grounded
  • GPS: TNC (female) - surge protected