SMA 88 - 108 MHz notch filter with an innovative design. This new professional model is designed and optimized for both reception and transmission up to 30W. It is able to attenuate signals on VHF FM broadcasting frequencies from 88 to 108MHz up to 90dB, minimizing losses at the band margins such as for example at 78MHz and 120MHz (civil and airport frequencies). Low insertion loss up to 3 GHz. Excellent return loss. Amphenol connectors. Anticorodal aluminum structure. Meets or exceeds MIL-DTL-81706B and MIL-DTL-5541F regulations for corrosion on unpainted metal.