4 element 70MHz OWL Super-Light Yagi

Manufacturer: InnovAntennas
Product Code: 70-OWL-4SL

Product Dimensions and Weight

Product Length: 77.0000M
Product Width: 2.1380M
Sales price £179.95
gross price
Sales price without tax £149.96
Sales price without tax£149.96
Tax amount £29.99
Total Tax: £29.99


4 element Optimised Wideband Low Impedance) Super-Light Yagi for 69.9-70.5MHz


The G0KSC OWL is another fantastic design by G0KSC. Every ham knows a low impedance Yagi provides excellent performance. However, traditionally, low impedance has meant narrow band. G0KSC developed the OWL to have very close element

altspacing, this has increased the stability of the OWL over traditional low impedance Yagis. Additionally, the G0KSC OWL has been optimised for a 12.5 Ohm feed-point impedance (with traditional split dipole). With the split dipole swapped for a folded dipole, impedance is now a cool 50 Ohm so again (and as with all InnovAntennas Yagis) no matching device is needed!


Designed with the very latest modelling software packages costing 10's of thousands of pounds, not 30 year old software costing around $100.00 !! Accuracy in model and real-world performance assured.

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.


The super-light OWL's have elements connected and through the boom with a single securing bolt (3el rear mount OWL featured above)


Product Highlights

  • Marine grade Stainless Steel Fittings
  • Original Stauff Insulation clamps
  • Mill finished boom and elements for highest levels of accuracy
  • Optimised by computer for best possible performance
  • No matching device means no matching loss!
  • Easy and fast fit, assemble in just a few minutes


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Gain: 8.58dBi @ 70.2MHz

F/B: 20.88dB @ 70.2MHz

Peak Gain: 8.62dBi

Gain 10m above ground: 14.42dBi

Peak F/B: 18.72dB

Power Rating: 5kw

SWR: Below 1.5.1 from 69.9MHz to 70.5MHz

Boom Length: 1.56m

Weight: 1.4kg/3lbs

Safe Wind Speed: 545Kph/339Mph

Turning Radius: 0.5m/1.5ft

Vertical Stacking: 80cms



This antenna is made with a 1/2 inch (12.7mm) and 3/8 inch (9.525mm) diameter tube OWL loop and 3/8 inch (9.525mm) elements with a wall thickness of 1.6mm.  high performance for many years to come. Boom is 3/4 inch. This antenna is not made cheaply, it is made to perform and to do so for many years.

No figures are made up here as they are in some Ham Radio adverts, all performance figures are verified in the very latest software simulation packages with some antennas being professionally confirmed on an antenna range.



Azimuth Plot





Manufactured the right way, not the cheapest way!

* Where possible marine grade stainless steel components are used.

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