The 3 element Yagi is the original SteppIR antenna.
Using our proven technology it gives continuous frequency coverage from 6.8 to 54 Mhz. There have been many improvements over the years like the addition of a 40/30M rotatable dipole and our now standard electronic controller, the SDA 100. The 3 element Yagi with the 40/30 dipole is our most popular antenna. With a 16 foot boom, the antenna models that are programmed into the controller deliver solid gain and exceptional front-to-rear ratios. Ask any SteppIR owner to “hit the 180” button, and you may be surprised to hear just how good the front-to-rear really is for this antenna.
*Due to the confusion about the EIA/TIA wind ratings, SteppIR is now using PROJECTED AREA as the measurement for our customers to utilize when sizing an antenna to a tower. Projected area by definition is the total perpendicular surface area measured in square feet/square meters, that is exposed to wind. To calculate wind load you always take the largest projected area whether that is from the perspective perpendicular to the boom or perpendicular to the elements. In the case of SteppIR Yagi’s, the maximum projected area will always be the sum of the surface area’s perpendicular to the Yagi elements. This calculation is a constant number and will not change regardless of EIA specification changes. Be sure to present this information (along with the weight of the antenna, turning radius, element lengths, height of antenna, location exposure category, locations three-second gust wind speed, and locations maximum radial ice loading) to your structural engineer and/or tower manufacturer so that they can specify the correct product for your antenna.
- 3 element Yagi
- 40m-6m continuous coverage
- 16 ft boom
- 39 ft longest element
- 19.7 ft turning radius
- 8.1 sq ft wind load (EIA-222-C)
- Weight 58 lbs
Weight 58lb/26.3kg *Projected Area 14.37 sq ft / 1.33 sq m Longest Element 39ft/10.97m Turning Radius 19.7ft/6m Boom Length 16ft/4.87m Mast Hardware 2.0in/5.08cm Power Rating 3KW Wind Rating 100 mph / 160 km/h Frequency Coverage 6.8 mHz—54 mHz Cable Requirements 12 conductor 22 ga shielded Tuning Rate 1.33 ft/sec - 0.4 m/sec
Band dBi Gain DB F/R 40m 1.8* N/A 30m 2.1* N/A 20m 7.4 25 17m 8.3 25 15m 8.5 20 12 m 8.8 15 10 m 9.0 11 6 m 6.2(10.1)** 4 (30)**
* with 40/30 dipole ** with 6m passive element kit