Sirio GP3E VHF Base Antenna 135-175 MHz


Sirio GP3-E is a VHF (135-175 MHz) omnidirectional base station antenna, suitable for land and marine service and is tunable by cutting the whip length.


5/8 λ Ground Plane base station antenna for land and marine service. It works on the frequency range of 135-175 MHz by using the tuning diagram enclosed. The matching coil is DC fed for perfect protection from the static discharges.


GP 3-E is made of non-corrosive aluminium and assembled on a very strong base of die-cast metal to get the maximum robustness and the best performance. Tuning is easy by following the attached directions.

Sirio GP3E VHF Base Antenna 135-175 MHz
  • Type: 5/8 λ ground plane
  • Radiation: Omnidirectiona
  • lPolarization: Linear vertical
  • Frequency Range: 135-175 MHz Tunable
  • Systems: 2m-HAM, VHF Marine Band, ORBCOMM M2M, AIS-162 MHz, ISM-169 MHz
  • Gain: 1.5 dBd – 3.65 dBi
  • Max Power: 200W (CW)
  • Grounding Protection: DC-Ground
  • Connector: UHF-female (SO-239)
  • Materials: Aluminium, Copper, Nylon
  • Height (approx): 1480 mm / 4.86 ft
  • Weight (approx): 570 g / 1.26 lb
  • Mounting Type: On-Mast

Additional information

Weight 0.7 kg