7 element 27MHz OP-DES Yagi (13.8m)

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Prices 20% less for customers outside of EU

A 7 element wideband 26-28MHz OP-DES (Opposing Phase Driven Element System) Yagi  - NEW FOR 2012 ! Second Generation OP-DES Yagi !

The OP-DES is the newest in patent technology produced by InnovAntennas and is specifically designed for maximum performance, wide-band applications. Read more about the OP-DES Yagi Here. 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 26-28MHz at 1.2:1 SWR. The excellent 7el is an antenna with a huge punch over a wide bandwidth, Take a look!

Performance

Gain: 12.38dBi @ 27.050MHz

F/B: 31.35dB @ 27.050MHz

Peak Gain: 11.1dBi

Gain at 10m above Ground: 16.93dBi

Peak F/B: 32.83dB

Power Rating: 5kw

SWR: Below 1.3:1 from 26.5MHz to 27.5MHz  (Can be adjusted from 26MHz to 28MHz to suite users preference)

Stacking Distance: 8.0-11.5m ( 11m recommended)

2 Stacked Gain @ 11m spacing: 13.82dBi

2 Stacked F/B: 33.61dB

2 Stacked Gain @ 11m Spacing 10m above ground: 18.39dBi

Boom Length: 13.8m

Weight: 26.86Kg / 59.9LB

Turning Radius: 7.44m / 24.17ft

Wind Loading: 0.69 Square Metres / 7.12 Square feet

Wind Survival: 160KPH / 100MPH - A 125MPH (HD) version is available upon request

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

Specification

This antenna is made 3/4 inch (19.05mm) center elements and 5/8 inch (15.88mm) outer elements and 1/2 inch (12.7mm) tips. The OP-DES end sections 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 2 inch (50.1mm) square 10SWG aluminum (3.2mm wall).

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

Our antennas are constructed with the best quality materials in order 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 or 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 at 27.050MHz

Elevation plot at 27.050MHz

Single 7 element OP-DES up 11m above ground

2 x 7el OP-DES Yagi 11m apart with the bottom antenna 11m above ground

SWR

A 7el 11m OP-DES

Customer Comment - G0FWZ on his recently installed 7el 28MHz OP-DES Yagi:

'Hi Justin, hope you are well? Just to let you know this is a Killer Antenna !! By far the best signals from the UK! Opens and closes the band (10m). Do a search on DX summit for G0FWX and see what people say.

Thank you! Gary'

Manufactured the right way, not the cheapest way