To facilitate the installation of other services on a base insulated AM/MW mast, Kintronic Labs designs and manufactures custom isolation inductors that consist of (1) one or more windings of foam coaxial transmission line ranging in size typically from ½” to 1-5/8” on a common form, in some cases with a parallel vacuum variable capacitor that is set to parallel resonate the total wound inductance at the AM/MW frequency; (2) a slotted copper inductor with foam coax, Cat 5 or AC power conductors placed internal to the copper winding and terminated in an enclosed copper junction box at both ends with a barrier strip on which each of the AC power or other conductors terminate with RF bypass capacitors on each terminal; and (3) one or more windings of elliptical waveguide on a common form for higher frequency applications. The isolation inductors are provided on an aluminum panel with bent down sides, welded corners, mounting flanges, and alodine finish for installation in a customer-supplied building. They are available in either an expanded aluminum mesh housing or an aluminum weatherproof enclosure with hinged, key locked access door(s) and off white paint finish and with an optional support stand to facilitate installation on a concrete pad.

You can use the Tower Impedance Calculator to get your tower’s impedance.