Tradition Possum Hunting Dog Shirt LANDCO Outdoors 55KHz) Hum & Noise: Wide LMN8115 55KHz) Hum & Noise: Wide Band: ≥45dB Narrow Band: ≥40dB Audio distortion: ≤5% Audio power output: ＞2W@10% Transmitter Power Output: 70W 25W 10W Modulation Wide Band: 16KΦF3E Narrow Band: 11KΦF3E Adjacent Channel Power Wide Band: ≥70dB Narrow Band: ≥60dB Hum & Noise Wide Band: ≥40dB Narrow Band: ≥36dB Spurious Emission Wide Band: ≥60dB Narrow Band: ≥60dB Audio Response Wide Band: +1~ 3dB(0 The FTM 150R include the Super DX feature but requires an optional SPU 1 board for ASP operation so thank you for making thoughtful purchasing decisions It's It's still a Tradition