The Delta Electronics TCT-1 precision toroidal transformer provides sample voltages for RF current phase and magnitude measurement on broadcast antenna arrays. It is assembled in a rectangular aluminum enclosure with a 1.25″ diameter insulated clearance hole for the antenna conductor. This clearance enables operation with conductor voltages as high as 14 kV peak (10 kV RMS). Although conductor type, size and placement are generally not critical for the TCT-1 transformer, a 0.38 to 0.5″ diameter tubular conductor centered in the clearance hole provides optimum voltage capability. Frequency range: 0.5 – 2 MHz Sensitivity (Volts/Ampere): 0.5 Source impedance: 50 ohms Current range: 0 – 40 amps Absolute magnitude accuracy: 2% Absolute phase accuracy: 2 Phase tracking accuracy: 0.5 Insulation: 14 kV peak (10 kV RMS) Electric field rejection: >100 dB Dimensions (inches): 5.25 x 5.75 x 2.25 Weight: 3.5 lbs