7 element 27MHz OP-DES Yagi (13.8m)
A 7 element wideband 26-28MHz OP-DES (Opposing Phase Driven Element System) Yagi - 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. 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!
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.
This antenna is made with 3/4 inch (19.05mm) centre 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 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, ensuring 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.
- 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