The 2 Element Yagi has the highest value-to-performance of any of our antennas and is the antenna of choice for DX-peditions.
The SteppIR two element 20m-6m Yagi has a small profile, but it offers big performance. This antenna functions in a manner that would normally be consistent with a three element Yagi, due to its unique 57” (1.45m) boom length. When placing a parasitic element very close to a driven element, approximately .1 wavelength or less, the antenna will achieve gain performance that is quite high for a 2 element Yagi, more like the performance expected from a 3 element Yagi. There would normally be a caveat to this, at least with a fixed length aluminum Yagi – the antenna would have greatly limited bandwidth – roughly 120 Khz! This would be a highly impractical design since traditional fixed length Yagis are single-frequency devices – the bandwidth is very narrow unless you use traps, interlacing or simply add more elements in order to “trick” the radio into thinking it is resonant. Of course, all of those methods lead to significantly reduced performance when compared to a single frequency Yagi.
2 Element Specs Specifications 2 Element 20m-6m 2 Element + 40/30m Dipole Specifications 2 Element 20m-6m 2 Element + 40/30m Dipole Weight 30lb/13.6kg 37lb/16.8kg Wind Load 4.0sq ft/0.37sq m 6.0sqft/0.56sq m Longest Element 36ft/10.97 m 39ft/11.9 m Turning Radius 18.2ft / 5.53 m 20ft/6.09 m Boom Length 57ft/1.62 m 57ft/1.62 m Mast Hardware 2.0in/5.08 cm 2.0in/5.08 cm Power Rating 3KW 3KW Wind Rating 100 mph / 160 km/h 100 mph / 160 km/h Frequency Coverage 13.8 mHz—54 mHz 6.8 mHz—54 mHz Cable Requirements 12 conductor 22 ga shielded 12 conductor 22 ga shielded Tuning Rate 1.33 ft/sec – 0.4 m/sec 1.33 ft/sec – 0.4 m/sec
2 Element Performance Band dBiGain F/RdB Band dBiGain F/RdB 40 m 1.8* N/A 30 m 2.1* N/A 20 m 6.6 21 17 m 6.6 16 15 m 6.5 13 12 m 6.4 11 10 m 6.2 9 6 m 5.0 (8.3)** 2 (20)** * with optional 40/30 dipole ** with optional 6m kit