Innov 4m Yagi

4m/70MHz 5ele OP-DES Yagi (1.9m)

SKU: INNOV 70-DES-5 Category: Feature: Brand: Only 1 left in stock



5 ele 70MHz OP-DES Yagi (1.9m)

A 5 element wideband 69.9-70.50MHz OP-DES (Opposing Phase Driven Element System) Yagi  - NEW! 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.

This antenna has a flat SWR curve covering 69.90-70.50MHz at 1.1:1 SWR. The super-compact 5el is a tiny antenna with a huge punch, Take a look!


  • Gain: 9.05dBi @ 70.200MHz
  • F/B: 25.39dB @ 70.200MHz
  • Peak Gain: 9.18dBi
  • Gain at 10m above Ground: 14.76dBi
  • Peak F/B: 26.10dB
  • Power Rating: 5kw
  • SWR: Below 1.1:1 from 69.900MHz to 70.500MHz
  • Stacking Distance: 2.5-3.3m ( 3.0m recommended)
  • 2 Stacked Gain @ 3.0m spacing: 12.05dBi
  • 2 Stacked F/B: 26.97dB
  • 2 Stacked Gain @ 3.0m Spacing 10m above ground: 17.62dBi
  • Boom Length: 1.940m
  • Weight: 4Kg / 8.8LB
  • Turning Radius: 1.669m / 5.44ft
  • Wind Loading: 0.1 Square Metres / 3.28 Square feet
  • Wind Survival: 209KPH / 130MPH



This antenna is made 1/2 inch (12.7mm) centre elements and 3/8 inch (9.525mm) outer elements with 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 1.25 inch (32mm) square 16SWG aluminum.

These 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.

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

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