This
Sirio SB 1 S omnidirectional monoband marine antenna is designed to work without groundplane. The antenna has stainless steel hardware and is protected against the worst weather conditions. It is supplied with stainless steel bracket for an easy installation on top of the mast. The high quality whip is made of brass and copper protected by fiberglass tube.
Features
- Marine antenna, Mono-band
- Unity-gain, Omnidirectional
- Designed to work without Ground Plane
- Protection from static discharges DC-Ground
- Perfect protection against the worst weather conditions
- Provided with stainless steel bracket for an easy installation on mast top
- Stainless steel hardware
- High quality whip made of brass and copper protected by a white fiberglass tube
Electrical Data
| Type | : | 1/2 base loaded |
| Frequency range | : | 154.4-163.5 MHz (at SWR = 2:1) |
| Impedance | : | 50 Ohm unbalanced |
| Radiation (H-plane) | : | 360° omnidirectional |
| Radiation (E-plane) | : | beamwidth at -3 dB = 60° |
| Radiation anlge deg. | : | 23° |
| Polarization | : | vertical |
| Gain | : | 0 dBd, 2.15 dBi |
| Bandwidth | : | 9.1 MHz (at SWR 2:1) |
| VSWR at res. freq. | : | = 1.2:1 |
| Max. power | : | 100 Watts |
| Feed system/Position | : | Transformer DC-ground / base |
| Connector type | : | SO 239/UHF-female |
Mechanical Data
| Material | : | Glass fibre, Nylon, Chromed brass |
| Lenght | : | approx. 1060 mm |
| Weight | : | approx. 380 gram |
