This is the replacement match for the HD FMJ Antenna.

Constructed of:

– 316 Stainless Steel

– Poly sheath around stranded copper-clad steel wiring

– HF ferrite beads

– 99.9% Pure Copper Wire

– Nylon

– Chrome plated brass

– Brass

– Solder Wire, 60/40 Sn/Pb

NOTE – Never Remove or Loosen any of the Bolts, Washers, Nuts, or Caps on the AutoMatch.

Use:

• Uses an inductance matching network to match the capacitance of the new Alpha antenna elements.

Hardware Specifications:

• SO239 connector
• 3/8 24 bolt

Max Power (Watts):

• 250 PEP SSB
• 125 CW
• 25 Digital

Additional Information: For assembly we use a stainless-steel housing, which has non-magnetic characteristics to eliminate eddy currents. A transformer is then wrapped in a dielectric made from flame retardant tar paper, which is then placed inside the housing. This is what gives the AutoMatch both the capacitive and inductive balance once the elements are installed.

Previous design: In July 2023 Alpha Antenna changed what was the 5:1 UnUn.

Current design: The result of this change is an arrangement to a modified 5 to 1 UnUn.