An aerial tuning unit or, more correctly, an aerial matching unit, is a simple but effective method of matching the transmitter output impedance to your aerial impedance. An ATU or AMU is ideal for feeding end-fed aerials.
An aerial tuning unit or, more correctly, an aerial matching unit, is a simple but effective method of matching the transmitter output impedance to your aerial impedance. An ATU or AMU is ideal for feeding end-fed aerials.