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Hot Rodz
®
Adjustable Capacity Hat
DXE-HR-1P
DXE-HR-1P-INS Revision 1b
US Patent # 7,002,525
Shown installed on an
optional Hustler resonator
© DX Engineering 2012
P.O. Box 1491 ∙ Akron, OH 44309-1491 USA
Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200
Fax: (330) 572-3279 ∙ E-mail: DXEngineering@DXEngineering.com
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Summary of Contents for DX Engineering Hot Rodz DXE-HR-1P
- Page 1 DXE-HR-1P-INS Revision 1b US Patent # 7,002,525 Shown installed on an optional Hustler resonator © DX Engineering 2012 P.O. Box 1491 ∙ Akron, OH 44309-1491 USA Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200 Fax: (330) 572-3279 ∙ E-mail: DXEngineering@DXEngineering.com...
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Page 2: Additional Requirements
Introduction The DX Engineering Hot Rodz® is an adjustable capacity hat system that increases the efficiency and gain of single-band vertical antennas, such as those from Hustler and Pro Am. Hot Rodz® can even shorten the height of the antenna by eliminating the need for a whip. Hot Rodz® can also be used on the Hustler 4, 5 and 6-BTV series antennas by experienced antenna practitioners;... -
Page 3: Theory Of Operation
Theory of Operation When an antenna is shortened from its natural resonant length, the feedpoint 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 of the antenna. -
Page 4: Installation And Maintenance
DX Engineering DXE-MM-1 Dual Impedance Transformer. Installation and Maintenance While DX Engineering Hot Rodz® make it easy to modify Hustler mobile resonators and whips, we suggest you read these instruction carefully before you begin the process. Safety Considerations ... - Page 5 6. Install the resonator and Hot Rodz® assembly to the antenna mast. 7. Adjust the stainless steel rods and the whip (if installed) for the lowest SWR for the desired frequency. 8. Refer to 'Determining the Length of the Rods" for rod lengths. Figure 1 - Typical installation - optional RM-40 resonator shown as an example.
- Page 6 Determining the Length of the Rods To determine the lengths of the rods, refer to Table 2 and do the following: 1. Beginning with the leftmost column of Table 2, read down successive columns of numbers until you reach the intended frequency or slightly below. 2.
- Page 7 MO-2 and 48 inches for the resonator and whip). This combination resonates at about 7.16 MHz. From the chart you can see that by using DX Engineering Hot Rodz® you can install a Hustler 20 Meter coil (RM-20) and the 24-inch rods (supplied) and the 12-inch whip that resonates even lower at 7.1 MHz, but is only 78 inches high!
- Page 8 Standard Installation - Hot Rodz® Configuration Guide Frequency (MHz) for RM Resonator and MO-2 Mast Standard Hot Rodz Configurations RM10 RM11 RM12 RM15 RM17 RM20 RM20S RM30 RM40 RM40S RM80 (3) 6” Rods, Centered — — 27.1 27.1 25.6 21.4 21.2 15.7 15.6...
- Page 9 Dual Installation - Hot Rodz® Configuration Guide Frequency (MHz) for RM Resonator and MO-2 Mast Dual Rod Configurations RM10 RM11 RM12 RM15 RM17 RM20 RM30 RM40 RM80 (3) 6" Rods, Centered 25.7 25.4 24.3 19.8 19.7 10.4 (6) 6" Rods, Centered 25.1 24.8 23.7...
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Page 10: Optional Items
HSR-49-04-80S DXE-HR-2P - Screwdriver Antenna Hot Rodz®, Hub & 3 Sets of Rods The DX Engineering Hot Rodz® is an adjustable capacity hat system that increases the efficiency and gain of single-band vertical antennas. Hot Rodz® can even shorten the height of the antenna by eliminating the need for a whip. - Page 11 Hustler Standard and Super Resonators Individual Hustler Resonators are available for 10, 12, 15, 17, 20, 30, 40, 75 and 80 Meters. The standard resonators can handle 400 watts P.E.P. The Super Resonators, (S) which can handle 1 kW P.E.P. and have slightly more bandwidth, are available for 40 and 80 Meters.
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Page 12: Technical Support
Warranty All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted;...
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