The TZ-230D-4H balun is a high performance low loss, 4:1 balun. The balun is supplied with all stainless steel connections, fully sealed in a high impact ABS plastic case and is suitable for boom mounting or sling mounting. Dual toroidal ferrite cores are used to extend the useable range of the balun down to 160m and all the way above 60MHz, whilst still being able to handle high power, without saturating. Yes, the balun can be used on 6m too. The TZ-230D-4H is similar in design to the TZ-230D-4m except that 4 toroidal cores are used to provide additional power handling. Larger diameter wire is used in the winding for additional currents in the windings.
The TZ-230D-4H is designed to be able to be used in either wire antenna or boom antenna installations. An eyelet is provided to support the balun when it is hung in a vertical situation such as when installed in an Off Centre Fed wire dipole, windom or rhombic antenna. Groves in the base of the balun enclosure are provided to assist mounting of the balun to a round tube such as a mast for a log periodic antenna or HB9CV. Large cable ties can be used for the boom installation and small cable ties for the wire installations.
PRODUCT DESIGN AND COMPONENTS
The TZ-230D-4H is not a kit. This is a dual toroidal core, current mode (Guanella) balun. It is supplied fully constructed with detailed installation instructions and hardware for mounting. The TZ-230D-4H is an excellent choice for Off Centre Fed dipole, random length wires, Rhombics, terminated Vee Beams, Log Periodics, horizontal loops and other high impedance antennas.