3 element 50MHz OWL Yagi

Description

A 3 element compact OWL Yagi

3el OWL with rear mount option shown above

The OWL combines performance and light-weight in one package. Designed for portable use and where there is simply not enough space for a 6m Yagi, this antenna really delivers a punch with just a tiny boom length of just 1.2m (under 4 feet).

The OWL uses an adjustable folded dipole system and has a direct 50 Ohm feed point, no matching device (or associated losses) being the result.

Performance

7.67dBi @ 50.150MHz

17.25dB @ 50.150MHz

Peak Gain: 7.72dBi

Gain at 10m above Ground: 13.26dBi @ 50.150MHz

Peak F/B: 18.44dB

Power Rating: 5kw

SWR: Below 1.3.1 from 50.00MHz to 50.400MHz

Stacking Distance: 2.5-3.6m (3.3m recommended)

2 Stacked Gain @ 3.3m spacing: 10.61dBi

2 Stacked F/B: 14.41dB

2 Stacked Gain @ 3.3m Spacing 10m above ground: 16.07dBi

 

Boom Length: 1.2m

Weight: 2Kg / 4.4LB

Turning Radius: 1.643m / 5.39ft

Wind Loading: 0.16 Square Metres / 1.37 Square feet

Wind Survival: 253KPH / 157MPH

Other options available if higher wind loading/survival is required.

REAR MOUNT AVAILABLE UPON REQUEST AND REQUIRED FOR VERTICAL MOUNTING

Specification

This antenna is made 1/2 inch (12.7mm) centre elements and 3/8 inch (9.525mm) outer elements (centre sections of the driven element are 5/8''). The antenna has fully Built on a 1'' square aluminium boom with elements passing through (and bolted to) the boom. 

Our antennas are constructed with the best quality materials in order that the best mechanical construction can be achieved, not the cheapest and most profitable! Even a digital caliper is used (with an accuracy of .01mm) to measure the elements during production to ensure they are within 0.2mm of what they should be, this ensures they work as well as our software model predicts.

Note: Much development time has gone into our antennas, not just on basic electromagnetic design, we are able to model the effect of insulators, booms and other objects to ensure the make up of our antennas have least effect on performance and pattern degradation. More information can be found here

• Marine grade Stainless Steel Fittings
• Original Stauff Insulation clamps
• Mill finished boom and elements for highest levels of accuracy

 

Azimuth Plot

 

Elevation Plot

 

 

Single 3 element LFA up 10m above ground

 

2 x 3 el LFA Yagi 3m apart with the bottom antenna 10m above ground

 

SWR

 

3el OWL for 50MHz

 

Through-boom elements for super-light wieght construction

Manufactured the right way, not the cheapest way!