SIRIO - GAINMASTER - 27 Mhz Antenna - 5/8

Engineered with the most advanced available technologies it is completly manufactured in Italy with high quality materials.

The new design of the radiant element (Patent Pending) works like a central feeded dipole so all RF currents on the radiator are in-phase and the ground plane radials are not necessary.

The coaxial coil at the bottom works like RF-choke for the optimum decoupling from mast and feeding line.

Made of telescopic fiberglass tubes, it is DC-grounded for the best protection from static discharges.

Gain-Master™ is the new reference standard in its class of antennas.

ELECTRICAL DATA

• Type: 0.625 λ center feeded vertical dipole
• Frequency Range: SWR ≤ 2.0 25.5 - 30 MHz 400 CB channel & 10m ham band
• Impedance:50 Ω
• Radiation: Omnidirectional
• Polarization: Linear Vertical
• Max Gain on the horizon: 1 to 2 dB higher than conventional 5/8 λ
• Max Power: 500 Watts (CW) continuous, 1000 Watts (CW) short time
• Ligthning protection: All metal parts are DC-grounded, the inner conductor shows a DC-short
• Connector: UHF-female, PTFE insulator & gold plated central pin
  
  
  MECHANICAL DATA:
  
  
• Materials: Whip made of white fiberglass four sections composite tube,
  radiator made of copper wire and low loss coax cable, stainless steel hardware, anodized AW6060 aluminium, UV stabilized thermoplastic.
• Wind Resistance: up to 160 Km/h
• Height (approx.): 7360mm with bracket, radiator 6850mm
• Packaging Dimensions: 1950 x 100 x 130 mm
• Weight (approx.): 3 Kg
• Mounting mast: Ø 35-54 mm side mast with “V” bolt