The SmarTech 27DL2 is the Delta Loop that, above all, responds to the needs of those who are looking for a small, lightweight, and high-performing system.

It is a low-noise antenna and it is free from electrostatic noise. Thanks to its excellent signal-to-noise ratio and electrostatic noise rejection, the 27DL2 is perfectly efficient, even when other types of antennas are practically unusable. Additionally, the antenna can be mounted on a lightweight support such as a TV pole or small rotor, and it reaches its characteristic performance even at low heights above the soil.

The radiation patterns clearly demonstrate that the 27DL2 is suitable for both long-distance DX and medium/short-range contests. For more details, please refer to the antenna patterns.

This antenna boasts a flat VSWR curve, covering the whole 27 MHz band with less than
VSWR 1.5:1




ELECTRICAL SPECIFICATIONS
Gain 12.57dBi @20m (65.6ft)
Front/Back Ratio 26.58dB @20m (65.6ft)
Impedance 50 ohm
Power rating 3 kW (optional 5 kW)
Matching Method Gamma Match
3 dB Horizontal Beamwidth 76.2° @20m (65.6ft)
PHYSYCAL AND MECHANICAL SPECIFICATIONS
Weight 11kg (24.2lb)
Boom length 2m (6.56ft)
Rotation radius 2.07m (6.8ft)
Projected area [F=Flat - C=Cylindrical] F = 0.31 m²(3.4 ft²) - C= 0.06m² (0.6 ft²)




Antenna 2 el. Delta Loop 27DL2 SmarTechAntenna 2 el. Delta Loop 27DL2 SmarTech


The SmarTech Delta Loop antennas are designed to achieve the best configuration for maximum forward gain, improved Front-to-Back ratio, improved Front-to-Side ratio, and a cleaner radiation pattern. This is possible because simulation approaches are not constrained by the limitations of 50 ohm (or any other) impedance configurations, as is the case with direct feed antennas using coaxial cable. The constraints imposed by specific project impedances significantly limit the selection of optimal solutions, which result in the adoption of lower-quality configurations with greater performance compromises.
The Delta Loop SmarTech antennas, on the other hand, are designed using the most advanced calculation methods. The impedance matching is performed by a specific and high-quality gamma match system, ensuring the best signal transfer and extremely high efficiency levels of the whole antenna system.

Delta Loop Antennas SmarTech




MATERIALS

The main structure of the antenna is made of an aluminum alloy EN AW-6060/82 UNI9006/1 (Anticorodal 60/100), which provides greater durability against aggressive atmospheric agents (ice, water, UV rays, fine dust, acid rain), and better resistance to the mechanical stresses of wind.


SmarTech antennas are also supplied, depending on the model and specific mechanical requirements, with parts in Aisi 304 stainless steel (Austenitic Stainless Steel UNI/EN 10088) and parts in steel compliant with the resistance classes designated by the EN ISO 898-1 standard: 2013.

The horizontal wire is one of the most important components of the antenna, as it carries the highest current, and the RF radiation is maximum. Therefore, the quality of the material determines the system efficiency to a great extent.


Delta Loop 2 el. - SmarTech



SMARTECH has focused its utmost care and efforts on producing a specific, special wire consisting of 99.99% pure copper with an antioxidation coating and insulated with a special polymer. The wire is also used in military and aerospace applications due to its excellent dielectric properties (better insulation than glass), abrasion and tear resistance, UV resistance, and chemical solvent attack resistance. It has an IDT of 8 kV and can operate at temperatures ranging from -65°C to +150°C.

A high-efficiency Gamma Match is used to adapt the 27DL2 (relative dielectric constant εr=2.0 @1 MHz - with better dielectric properties than fiberglass and polyethylene, and a dielectric strength of 600kV) to 50 ohms. The power rating can go up to 5 kW (optional).


SmarTech Gamma Match



The insulator blocks are made of POLYPROPYLENE PPC 5660, a material resistant to considerable thermal excursions (ranging from -20°C to +130°C) with a high breaking load (tensile strength of 25 MPa), good resistance to abrasion, and a volume resistivity of over 10^18.

The antenna is designed to achieve maximum electrical efficiency and the best mechanical strength and durability, thanks to the quality of the materials used. It is also suitable for installation in particularly aggressive environments, such as high-altitude mountainous areas or coastal areas with a highly corrosive atmosphere.

SmarTech antennas are made using materials and technological solutions that minimize parasitic resistances (which produce unwanted RF dissipations) along the entire radio frequency signal path.

The costs include proper packaging, completion of customs documentation, and 24/7 shipping tracking. All products are shipped using the most important and reliable international couriers.





If shipping costs to your destination are not included during the ordering process, please contact us. We will send you a quotation for the fastest, safest and cheapest shipping solution.





Antenna 2 el. Delta Loop 27DL2 SmarTechAntenna 2 el. Delta Loop 27DL2 SmarTech

Ph. credits: Mr. Nicolas M. - FRANCE


Antenna 2 el. Delta Loop 27DL2 SmarTech

My 2 el. Delta Loop Smartech during the Alfa Tango IPA activation of Piacenza province. Very easy to mount and operating in portable activity.

Giuliano 1AT468 - ITALY
Antenna 2 el. Delta Loop 27DL2 SmarTech

Hi, I wanted to congratulate you for the superb DL 2 el that I have assembled with satisfaction. SWR flat on the whole band. Excellent yield and reception. Thanks so much.

Stefano 1DL109 - N. Italy


Antenna 2 el. Delta Loop 27DL2 SmarTechAntenna 2 el. Delta Loop 27DL2 SmarTech

Ph. credits: Mr. Ioann V. - FRANCE




Antenna 2 el. Delta Loop 27DL2 SmarTech

Hallo! Here is a photo of my 2 element delta loop Smartech under the snow and after the strong storm of last night.
As you can see the antenna is perfectly intact.

Giuliano 1AT468 - ITALY


ELECTRICAL SPECIFICATIONS
Gain 12.57dBi @20m (65.6ft)
Front/Back Ratio 26.58dB @20m (65.6ft)
Impedance 50 ohm
Power rating 3 kW (optional 5 kW)
VSWR min. @50 ohm 1.0:1
Matching Method Gamma Match
3 dB Horizontal Beamwidth 76.2° @20m (65.6ft)
PHYSYCAL AND MECHANICAL SPECIFICATIONS
Weight 11kg (24.2lb)
Boom length 2m (6.56ft)
Longest element 3.70m (12ft)
Rotation radius 2.07m (6.8 ft)
Projected area [F=Flat - C=Cylindrical] F = 0.31 m² (3.4 ft²) - C= 0.06 m² (0.6 ft²)

2 el. DELTA LOOP (27DL2)

  • € 355.10


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