6 element 14MHz OP-DES Yagi (20m)

A 6 element wideband 14MHz OP-DES (Opposing Phase Driven Element System) Yagi

The OP-DES is the newest in patent technology produced by InnovAntennas and is specifically designed for maximum performance, wide-band HF applications. InnovAntennas use the latest in Electromagnetic Design Technology to ensure the very best results and the OP-DES Yagi is proof of that!

This antenna has a flat SWR curve covering 14.000 - 14.350MHz at better than 1.3:1 SWR.

Performance

Gain: 11.32dBi @ 14.150MHz; 11.45dBi @14.250MHz

F/B: 31.35dB @ 14.150MHz

Peak Gain: 11.51dBi

Gain at 20m above Ground: 16.23dBi

Peak F/B: 32.12dB

Power Rating: 5kw+

SWR: Below 1.3:1 from 14.000MHz to 14.350MHz

Boom Length: 19.950m

Stacking Distance: 17 - 20m ( 19m recommended)

2 Stacked Gain @ 19m spacing: 14.11dBi

2 Stacked F/B: 37.96dB

2 Stacked Gain @ 19m Spacing 20m above ground: 18.55dBi

Weight: 76.8Kg / 169LB

Turning Radius: 11.324m / 37.1ft

Wind Loading: 1.97 Square Metres / 21 Square feet

Wind Survival: 161KPH / 100MPH

Specification

This antenna is made with 1.25 inch (32.1mm) tapering 3/8 inch (9.525mm). The antenna has fully insulated elements which will ensure continuous, high performance for many years to come. Boom to mast brackets are included with all antennas which will support 2 inch (50mm) masts.  Boom is 4 inch square 10SWG (3.2mm wall) aluminum with Kevlar boom guys and stainless steel turnbuckles for guy adjustment. wind loading up to 100MPH.

OTHER TAPER SCHEDULES ARE AVAILABLE IN THIS ANTENNA, CALL OR EMAIL FOR DETAILS

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 for VHF/UHF (with an accuracy of .01mm) to measure the elements during production to ensure they are within 0.2mm of what they should be, ensuring they work as well as our software model predicts (VHF).

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. 

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

A 6el 20M OP-DES being installed at K5RC

Azimuth Plot

Elevation Plot

Single 6 element OP-DES up 20m above ground

2 x 6 el OP-DES Yagi 19m apart with the bottom antenna 20m above ground

The 6el 14MHz OP-DES Element Layout - how the OP-DES Yagi looks

SWR

Manufactured the right way, not the cheapest way! 

* Where possible marine grade stainless steel components are used