This is the Sirio SB3M 3/4 Wave Marine Boat, RIB, Yacht VHF Antenna.
Brand new, of excellent quality and with features such as adjustable rake angle, 5m white RG58 coaxial cable supplied.
• Designed to work without Ground Plane
• Protection from static discharges DC-Ground
• Chrome-plated brass ferrule
• Stainless steel hardware
• High quality whip made of brass and copper protected by fibreglass tube
Supplied with white coaxial cable RG-58 C/U directly connected
• Wide range of optional mounting bases
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Electrical Data
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Type:
SB 3 M: 3/4 ë J-pole
SB 6 M: 3/4 ë + 1/2 ë coliner J-pole
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Frequency range at V.S.W.R. ≤ 2:1:
SB 3 M: 155.5-160 MHz
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Impedance: 50Ù unbalanced
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Radiation (H-plane): 360° omnidirectional
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Radiation (E-plane):
SB 3 M: beam width at -3 dB = 39°
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Radiation angle deg.:
SB 3 M: 21°
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Polarization: vertical
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Gain: SB 3 M: 2 dBd, 4.15 dBi
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Bandwidth at V.S.W.R. 2:1:
SB 3 M: 4.5 MHz
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V.S.W.R. at res. freq.:
SB 3 M: ≤ 1.4:1
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Max. power: 100 Watts
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Feed system / Position: 1/4 ë Parallel line stub / base
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Cable length / Type: SB 3 M: 5 m / white RG 58
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Standard mount: SB 3 M: 'M-8' NY
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Mechanical Data
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Materials: Glass fibre, Nylon, Chromed brass
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Height (approx.):
SB 3 M: 1480 mm
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Weight (approx.):
SB 3 M: 750 gr
Rocket Radio are licensed by Ofcom to supply and service Maritime Radios and equipment.
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