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Sigma LP3 VHF Low Profile Antenna

 Sigma LP3 VHF Low Profile Antenna

LP3 Low Profile Antennae 170-225 MHz

  • Protected Antenna for Limited Height &
  • High Vehicle Situations
  • Omnidirectional
  • Wide Bandwidth
  • Unity Gain
  • Field Tuning Not Required
  • High Impact ABS Cover
  • Suitable for High Pressure Vehicle Washing

Type LP3 low profile antenna is designed for use on vehicles operating under severe

height limitations such as buses, trains, trams, trucks etc. Radiation is omnidirectional and the antenna is vertically polarised. Gain is remarkable for an antenna of such low height.

Type LP3 has unity gain over the transmit segment (5 MHz) of the frequency band.

The antenna LP3 has no tuning devices at all and no adjustment is necessary. The radiating element is enclosed in a tough ABS moulding with an aluminium base plate. The moulding is ribbed for additional impact strength. Type LP3 is supplied as a fully assembled, sealed unit ready for fitting directly to the mounting surface.


Frequency Range: 170-225 MHz

Bandwidth 5MHz at 195 MHz

Gain (Rel. ¼ wave antenna): Unity

VSWR: 1.5:1 Typical

Polarisation Vertical

E-Plane Beamwidth (-3dB) As for 1/4antenna

H-Plane Beamwidth (-3dB) Circular within +/- 0.5dB (using groundplane 1/2 square)

Power Rating: 100 Watts

Impedance: 50 ohms

Lightning Protection: DC ground

Feeder Tail: 1m URM76 (other lengths available)


Termination: N male (Other Terminations Avail:)

Dimensions (LxWxH) 470mm x 430mm x 50mm

Weight: 2.5 kg

Baseplate Fixing: Screw or Rivet


Cover Black ABS, UV Stabilised

Baseplate Aluminium (14swg)


Frequency ** Model

Tx 193-198 MHz & Rx 201-206 MHz

LP3 - factory aligned to cover full 5MHz both Tx & Rx for Tx/Rx separation of 8MHz

Tx 194-199 MHz & Rx 202-207 MHz

LP3RL- factory aligned to cover full 5MHz both Tx & Rx for Tx/Rx separation of 8MHz

** For other frequencies contact us.

Optimum performance is achieved when the antennas is fitted to a metallic groundplane or roof 1/2 square



Renair Antennae Ltd. 11-15 Chase Road, Park Royal, London NW10 6PT. Tel: +44 (0)20 8965 3001  Fax: +44 (0)20 8965 5773  Email: