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SIRIO SY4 CB Yagi Directional Antenna 4 Elements 26.5-30 MHz
The Sirio SY 27-4 is a very strong, yet lightweight, high-gain Yagi antenna. Well-built, it provides great performance on 26.9-27.5 MHz. The SY 27-4 is easily tunable to cover up to 29 MHz on the 10-meter amateur band. It is a 4-element Yagi beam antenna operating on the 27 MHz band with a Gamma Match System. It is entirely made of anticorodal aluminum and comes with a large Boom section and a steel bracket for mounting on a support pole. The fixed part with the quick mounting system is made of die-cast metal for maximum strength. Each element is supplied with polyethylene sleeve joints for perfect waterproofing. It is equipped with a female UHF connector.
FEATURES:
- Base station antenna;
- Directional, high gain;
- Horizontal polarization;
- Factory tuned at mid-band;
- Power handling capability;
- Elements fitted with waterproof joint sleeves;
- Made of 6063 T-832 aluminum alloy;
ELECTRICAL DATA
- Type: SY 27-4: 4 element Yagi antenna;
- Frequency range: SY 27-4: 26.9-27.5 MHz @ SWR ≤ 2;
- Impedance: 50Ω;
- Radiation (H-plane): directional;
- Polarization: linear horizontal;
- Gain: SY 27-4: 11 dBd, 13.15 dBi;
- Bandwidth @ SWR ≤ 2: SY 27-4: ≥ 600 KHz;
- SWR @ res. freq .: ≤ 1.2;
- Max. Power: 1000 Watt (CW) continuous, 3000 Watt (CW) short time;
- Feed system / position: Gamma match / Center;
- Connector: UHF-female;
MECHANICAL DATA
- Materials: Aluminum, steel, nylon;
- Wind load: SY 27-4: 80 N at 150 km/h;
- Wind resistance: 120 km/h;
- Wind surface: 0.07 m²;
- Dimensions (approx.): SY 27-4: 5725x4030x100 mm;
- Boom length / diameter: SY 27-4: 4030 mm / 33 mm;
- Max. element length (approx.): SY 27-4: 5725 mm;
- Turning radius (approx.): SY 27-4: 3600 mm;
- Weight (approx.): SY 27-4: 6100 gr;
- Mast mounting: Ø 35-50 mm.
