Sirio SA270MN

Description

Nice quality, higher gain fibreglass dualband VHF/UHF base antenna from Sirio, the new SA270MN will cover 145/433Mhz, and comes in at just 1780mm or 5.84ft in old money ! This model is perfect for those slightly longer distance QSO's on 2m and 70cms, and will give you years of trouble free operation. Fitted with low loss N type socket with a gold plated centre pin for cable connection.

• Features :
• Base station antenna, Omnidirectional
• Dual-band
• VHF Low-gain, UHF High-gain
• Protection from static discharges DC-Ground
• Stainless steel hardware and radials
• Equipped with anodized aluminium bracket for an easy side mast installation
• High quality whip made of brass and copper protected by fiberglass tubing

• Electrical Data
• Type :-
  
• VHF: 6/8 wave colinear
• UHF: 3 x 5/8 wave colinear
• Frequency range @ SWR < 2 >
  
• VHF: 142-148 MHz
• UHF: 426-443 MHz
• Impedance: 50 ohms
  
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane):
• VHF: beamwidth @ -3 dB = 61°
• UHF: beamwidth @ -3 dB = 30°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain :-
  
• VHF: 2 dBd - 4.15 dBi
• UHF: 4.2 dBd - 6.35 dBi
• Max. power (CW) @ 30°C: 200 Watts
• Grounding protection: all metal parts are DC-grounded, the inner conductor is coupled capacitively
• Connector: N-female, gold plated central pin

    

• Mechanical Data :-
  
• Materials: Fiberglass, Aluminium, Brass, Stainless Steel
• Wind load / resistance: 56 N @ 150 Km/h / 180 Km/h
• Wind surface: 0.05 m²
• Height (approx.): 1780 mm
• Weight (approx.): 900 g
• Radial length (approx.): 170 mm
• Mounting mast: Ø 35-54 mm

Sirio SA270MN Reviews