If your TV picture displays herringbone patterns or your FM reception is overloaded with distortion the signal may be too strong. These attenuators reduce the signal strength to correct these problems. They simply connect in-line with the aerial lead & feature a standard coax socket at one end & a standard coax plug at the other. They have bright aluminium alloy bodies & are suitable for VHF & UHF. They have low VSWR & are clearly marked. Two types available 6d B or 12d B. Length 45mm approx.