DX Engineering Hot Rodz™ Antenna Capacity Hat Systems are designed to increase the bandwidth and efficiency of single-band mobile vertical antennas, such as those from Hustler and Pro Am, or on mobile "screwdriver-type" adjustable frequency antennas. These hats can even shorten the height of the antenna by eliminating the need for a whip while maintaining the same or a lower resonant frequency. The DX Engineering Hot Rodz™ antenna capacity hats can also be used on the Hustler 4, 5, and 6-BTV series antennas by experienced antenna experimenters. When an antenna is shortened from its naturally resonant length, the feed point becomes capacitive. To offset the additional capacitance, it is common to add inductance in the form of a loading coil to restore the resonance. However, the additional inductor increases the resistance, which increases the loss in the antenna. DX Engineering Hot Rodz™ Antenna Capacity Hats solve the problem by using a capacity hat--a series of horizontal rods that helps to counter the effects of shortened vertical antennas.

Want better vertical antenna performance? Try DX Engineering Hot Rodz™ Antenna Capacity Hat Systems!

Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information.

DXE-HR-2P - Hot Rodz™ Antenna Capacity Hat Systems Include:

• (1) Precision Machined 6061 T6 Hot Rodz® Hub - Threaded Bore

• (1) 22 in. Stainless Steel Mast, with 3/8-24 in. threads on both ends

• (1) 3/8-24 in. Trim Nut (installed on the bottom of the 22 in. Mast)

• (1) 3/8-24 in. Hex Nut (installed on the top of the 22 in. Mast)

• (6) 6.0 in. Stainless Steel Rods

• (6) 12 in. Stainless Steel Rods

• (6) 24 in. Stainless Steel Rods

• (1) Allen Wrench

• (8) 8-32 x 1/8 in. Set Screws (includes 2 spares)

• (1) 3/8-24 x 1/2 in. Stainless Steel Hex Bolt

• (1) Rubber Washer

• (24) Black Safety Caps, for the stainless steel rods