This antenna is designed for operation with any 50 Ohm receiver (section 100). Ideal for EN55022 spot frequency emission testing. The two sets of telescopic elements plus extensions are made from stainless steel. Adjustment to the dipoles are set by the frequency scale. The TDA-25 is designed to operate with two different sized sets of adjustable elements & extensions.The smaller set covers from 100MHz - 200MHz whilst the larger adjustables cover 45MHz - 100MHz. A final fixed extension takes it down to 30MHz. Mounting is achieved by the balun arm sitting in an AMT-25 cup which has a 5/8UNC (f) recess attaching to any number of our devices with a 5/8UNC stud.
Note: This MF dipole set can be paired up to 1GHz by choosing (item 353) the TDS-25 set which covers 200MHz - 1GHz.