The V-Yagi is an evolution of planar Yagi-Uda systems. The particular element shape, along with their specific V-angle, give enhanced polarization, forward gain and front/back ratio properties, completely different from an homologous Yagi-Uda system.
Although the antenna weight is nearly equivalent to a 3 element Yagi, the SmarTech V-Yagi has a lower footprint, thanks to the particular V-shape elements. The 27YV3 can be also easily installed in small spaces and on relatively light supports.
The antenna is manufactured with the best materials and with the best mechanical care. Each part is sized for the higher performance in therms of resistance to heavy loads.
Radiation patterns show an excellent front/back ratio values and a considerable beamwidth at -3 dB on the horizontal plane. There are no spurious secondary lobes.
The only two major lobes, in the vertical plane, allow to cover take off angles useful both for long distance DX an short path E-sporadic modes.
The 27YV3 is adapted to 50 ohm with an hairpin matching system (a.k.a. beta match), which makes the 27YV3 DC Grounded and a low noise antenna, thanks to the complete cancellation of electrostatic noise. The antenna also has protection against electrostatic shocks for devices connected to it.
The main structure is made of aluminum alloy EN AW-6060/82 UNI 9006/1 (Anticorodal 60/100), which provides excellent long-term durability against the most severe weather (ice, water, UV rays, fine particles, acid rain), and better resistance to heavy wind load.
The antenna is supplied with stainless steel parts AISI 304 (Inox Austenitic UNI / EN 10088) and steel S235JR2 (UNI 100 series), certified according to 2000/53 / CE + RoHs standards.
Element Insulators are made of Polypropylene PPC 5660, resistant to remarkable thermic excursions (certified for temperatures from -20°C to +130°C), with high load at break (ultimate tensile strength 25Mpa), excellent abrasion-resistant and volume resistivity > 1018
The antenna is made to obtain the maximum electrical efficiency, the best mechanical resistance and durability, thanks to its high quality materials. It is also suitable for installation in mountain areas and coastal (corrosive) areas.
SmarTech antennas are designed with the minimum necessary electrical/mechanical joints. So, parasitic resistances are the lowest possible so as to minimize unwanted RF dissipations.
In order to maintain its best performances, each Delta Loop is individually checked before shipment.
|Gain||13dBi @10m (32.8ft)|
|Front/Back Ratio||30dB @10 m (32.8ft)|
|Power rating||5.0 kW|
|VSWR min. @50 ohm||1.0:1|
|3 dB Horizontal Beamwidth||68° @10m (32.8ft)|
|PHYSYCAL AND MECHANICAL SPECIFICATIONS|
|Longest element||5.3m (17.5ft)|
|Boom length||3.0m (9.84 ft)|
|Projected area [F=Flat - C=Cylindrical]||F = 0.24m² (2.54ft²) - C= 0.072m²(0.8ft²)|
|Rotation radius||3.1m (10.38ft)|
3 el. V-YAGI (27YV3)
- Brand: SmarTech Innovations
- Product Code: 27YV3