Sirio Base Station VHF Antenna

• Type: 1/4λ ground plane
• Frequency range: tunable 66-108 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 86°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Bandwidth @ SWR ≤2: ≥6.5 MHz @ 660 MHz
• SWR @ res. freq.: ≤ 1.2 @ start freq.
• Max. Power (CW) @ 30°C: 500 Watts
• Connector: UHF-female

• Type: 3/4λ coaxial J-pole
• Frequency range: tunable 68-73 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Radiation angle: 3°
• Polarization: linear vertical
• Gain: 2 dBd, 4.15 dBi
• Bandwidth @ SWR ≤1.5: ≥ 1.7 MHz @ 68 MHz
• SWR @ res. freq.: ≤ 1.2
• Max. Power (CW) @ 30°C: 500 Watts
• Connector: UHF-female

• Type: 3/4λ coaxial J-pole
• Frequency range: tunable 83-88 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Radiation angle: 3°
• Polarization: linear vertical
• Gain: 2 dBd, 4.15 dBi
• Bandwidth @ SWR ≤1.5: ≥ 2.5 MHz @ 83 MHz
• SWR @ res. freq.: ≤ 1.2
• Max. Power (CW) @ 30°C: 500 Watts
• Connector: UHF-female

• Type: 1/4λ ground plane large band
• Frequency range: RADIO band 87-108 MHz @ SWR ≤ 2.5
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 78°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Max. Power (CW) @ 30°C: 1000 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: PL-female

• Type: 1/4λ ground plane
• Frequency range: tunable 135-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 86°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Bandwidth @ SWR ≤2: ≥13 MHz @ 135 MHz
• SWR @ res. freq.: ≤ 1.2 @ start freq.
• Max. Power (CW) @ 30°C: 300 Watts
• Connector: UHF-female

• Type: 1/4λ ground plane large band
• Frequency range: 145-175MHz @SWR ≤2
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 78°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Max. Power (CW) @ 30°C: 1000 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female

• Type: ¾ Lambda
• Frequency range: 148-152 MHz
• Mounting type: pole mountable
• Impedance: 50Ω
• Gain: 0 dBd – 2.15 dBi
• SWR: ≤ 1.5
• Maximum power: 250 W
• Polarization: vertical
• Connector: UHF-female
• Grounding protection: All metal parts are DC-grounded, internal wiring indicates DC short circuit
• Weight: 750 g
• Material: aluminum, brass, galvanized steel structure

• Type: ¾ Lambda
• Frequency range: 152-156 MHz
• Mounting type: Pole mountable
• Impedance: 50 Ω
• Gain: 0 dBd – 2.15 dBi
• SWR: ≤ 1.5
• Maximum power: 250 W
• Polarization: vertical
• Connector: UHF female
• Grounding protection: All metal parts are DC-grounded, internal wiring indicates DC short circuit
• Weight: 750 g
• Material: aluminum, brass, stainless steel

• Type: 3/4λ coaxial J-pole
• Frequency range: tunable 164-168 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 60°
• Radiation angle: 3°
• Polarization: linear vertical
• Gain: 2 dBd, 4.15 dBi
• Bandwidth @ SWR ≤1.5: 164-168 MHz
• Max. Power (CW) @ 30°C: 250 Watts
• Connector: UHF-female

• Type: 5/8λ ground plane
• Frequency range: tunable 135-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 67°
• Radiation angle: 18°
• Polarization: linear vertical
• Gain: 1.5 dBd, 3.65 dBi
• Bandwidth @ SWR ≤2: see diagram
• SWR @ res. freq.: see diagram
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
• Connector: UHF-female, gold plated central pin

• Type: 2x5/8λ ground plane
• Frequency range: tunable 140-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 30°
• Radiation angle: 3.6°
• Polarization: vertical
• Gain: 3.8 dBd, 5.95 dBi
• Bandwidth @ SWR ≤2: 5.2 MHz at 140 MHz
• SWR @ res. freq.: ≤ 1.2 : 1 at 140 MHz
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal part are DC-grounded
• Connector: UHF-female, gold plated central pin

• Type: 5/8λ ground plane
• Frequency range: tunable 135-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 80°
• Radiation angle: 28°
• Polarization: linear vertical
• Gain: 1.5 dBd, 3.65 dBi
• Bandwidth @ SWR ≤2: see diagram
• SWR @ res. freq.: see diagram
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
• Connector: N-female, gold plated central pin

• Type: 2x5/8λ ground plane
• Frequency range: tunable 135-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 35°
• Radiation angle: 28°
• Polarization: linear vertical
• Gain: 3.8 dBd, 5.95 dBi
• Bandwidth @ SWR ≤2: see diagram
• SWR @ res. freq.: see diagram
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal part are DC-grounded, the inner conductor shows a DC-short
• Connector: N-female, gold plated central pin

• Type: dipole
• Frequency range @ SWR ≤1.5: 145-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 78° @ center freq.
• Polarization: linear vertical
• Gain: 0 dBd, 2.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: colinear
• Frequency range @ SWR ≤1.5: 135-147 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 40°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 3 dBd, 5.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: colinear
• Frequency range @ SWR ≤1.5: 145-160 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 40°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 3 dBd, 5.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: colinear
• Frequency range @ SWR ≤1.5: 150-165 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 40°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 3 dBd, 5.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: colinear
• Frequency range @ SWR ≤1.5: 158-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): 360° omnidirectional
• Radiation (E-plane): beamwidth @ -3 dB = 40°
• Radiation angle: 0°
• Polarization: linear vertical
• Gain: 3 dBd, 5.15 dBi
• Max. Power (CW) @ 30°C: 100 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: Yagi
• Frequency range: tunable 68-78 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 180°
• Radiation (E-plane): beamwidth @ -3 dB = 75°
• Polarization: linear vertical or Horizontal
• Gain: 2.85 dBd - 5 dBi
• Front to back ratio: 8 dB
• Max. Power (CW) @ 30°C: 350 Watts
• Connector: UHF-female

• Type: Yagi
• Frequency range: tunable 78-88 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 180°
• Radiation (E-plane): beamwidth @ -3 dB = 75°
• Polarization: linear vertical or Horizontal
• Gain: 2.85 dBd - 5 dBi
• Front to back ratio: 8 dB
• Max. Power (CW) @ 30°C: 350 Watts
• Connector: UHF-female

• Type: Yagi
• Frequency range: tunable 68-78 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 100°
• Radiation (E-plane): beamwidth @ -3 dB = 70°
• Polarization: linear vertical or Horizontal
• Gain: 4.85 dBd - 7 dBi
• Front to back ratio: 15 dB
• Max. Power (CW) @ 30°C: 350 Watts
• Connector: UHF-female

• Type: Yagi
• Frequency range: tunable 78-88 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 130°
• Radiation (E-plane): beamwidth @ -3 dB = 70°
• Polarization: linear vertical or Horizontal
• Gain: 4.85 dBd - 7 dBi
• Front to back ratio: 15 dB
• Max. Power (CW) @ 30°C: 350 Watts
• Connector: UHF-female

• Type: Dipole
• Frequency range: tunable 87-194 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 240°
• Radiation (E-plane): beamwidth @ -3 dB = 80°
• Polarization: linear vertical or Horizontal
• Gain: 1.85 dBd - 4 dBi
• Bandwidth @ SWR ≤1.5: ≥14.5 MHz @ 87 MHz
• SWR @ res. freq.: ≤ 1.2 @ start freq.
• Max. Power (CW) @ 30°C: 300 Watts
• Connector: UHF-female

• Type: dipole
• Frequency range @ SWR ≤1.5: 140-160 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 245°
• Radiation (E-plane): beamwidth @ -3 dB = 80°
• Front to back ratio: ≥ 5 dB
• Polarization: linear vertical
• Gain: 1.85 dBd, 4 dBi
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap

• Type: dipole
• Frequency range @ SWR ≤1.5: 155-175 MHz
• Impedance: 50Ω
• Radiation (H-plane): beamwidth @ -3 dB = 245°
• Radiation (E-plane): beamwidth @ -3 dB = 85°
• Front to back ratio: ≥ 5 dB
• Polarization: linear vertical
• Gain: 1.85 dBd, 4 dBi
• Max. Power (CW) @ 30°C: 200 Watts
• Grounding protection: All metal parts are DC-grounded, the inner conductor shows a DC short
• Connector: N-female with rubber protection cap