Innovantennas
Home of the LFA Yagi - G0KSC Designed Antennas
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Prices 20% less for customers outside of EU
A 7 element wideband 24.8-25MHz 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. 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 24.8-25MHz at 1.1:1 SWR. The compact 7el is an antenna with a huge punch over a wide bandwidth, Take a look!
Performance
Gain: 12.13dBi @ 24.930MHz
F/B: 32.27dB @ 24.930MHz
Peak Gain: 12.2dBi
Gain at 12m above Ground: 16.87dBi
Peak F/B: 33.83dB
Power Rating: 5kw
SWR: Below 1.1:1 from 24.80MHz to 25.0MHz
Stacking Distance: 8.0-12.5m ( 11.5m recommended)
2 Stacked Gain @ 11m spacing: 15.05dBi
2 Stacked F/B: 33.82dB
2 Stacked Gain @ 11.5m Spacing 12m above ground: 19.26dBi
Boom Length: 15m
Weight: 40.1Kg / 88LB
Turning Radius: 7.929m / 26ft
Wind Loading: 1.15 Square Metres / 12.35 Square feet
Wind Survival: 177KPH / 110MPH - A 125MPH (HD) version is available upon request
Other options available if higher wind loading/survival is required.
Specification
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 3 inch (76.5mm) 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. More information can be found here
Azimuth Plot at 28.45MHz
Elevation Plot
Single 7 element OP-DES up 12m above ground
2 x 7el OP-DES Yagi 11.5m apart with the bottom antenna 12m above ground
SWR
How the OP-DES looks; A 6el 10m OP-DES
Manufactured the right way, not the cheapest way
