Table of Contents
Advertisement
Quick Links
Hot Rodz
®
Adjustable Capacity Hat
for Screwdriver Antennas
DXE-HR-2P
DXE-HR-2P-INS Revision 1f
Shown installed on an
optional screwdriver antenna
© DX Engineering 2019
1200 Southeast Ave. - Tallmadge, OH 44278 USA
Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200
Fax: (330) 572-3279 ∙ E-mail: DXEngineering@DXEngineering.com
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for DX Engineering Hot Rodz DXE-HR-2P
Summary of Contents for DX Engineering Hot Rodz DXE-HR-2P
- Page 1 Screwdriver Antennas DXE-HR-2P DXE-HR-2P-INS Revision 1f Shown installed on an optional screwdriver antenna © DX Engineering 2019 1200 Southeast Ave. - Tallmadge, OH 44278 USA Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200 Fax: (330) 572-3279 ∙ E-mail: DXEngineering@DXEngineering.com...
- Page 2 Introduction The DX Engineering Hot Rodz® is an adjustable capacity hat system that increases the efficiency and gain of screwdriver antennas. Hot Rodz® achieves this, in part by enabling the use of a smaller coil, so that RF energy typically lost trough a larger coil is transferred to the antenna for a more powerful signal.
- Page 3 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. Hot Rodz solve this problem by using a capacity hat - a series of horizontal rods that counters the effects of shortened vertical antennas.
- Page 4 These increases result in stronger signals for transmitting and receiving. Installation and Maintenance While DX Engineering Hot Rodz® make it easy to modify screwdriver antennas, we suggest you read these instruction carefully before you begin the process.
- Page 5 Selecting the Frequency The rods can be adjusted to nearly any frequency with a few simple adjustments. Follow the directions below to fine-tune your system to the desired frequency. Lowering the Frequency To lower the frequency of a Hot Rodz® equipped antenna, do the following until you achieve the desired results: 1.
- Page 6 3. Attach the radial wires to the radial plate. The radial plate comes with 20 sets of hardware, although additional hardware can be purchased to attach up to 60 radials. Visit the DX Engineering website for tips on how to hide radial wires without digging. - 5 -...
- Page 7 48-inch and 72-inch long rods for use on the 160 meter band. Tarheel Screwdriver Antennas with DX Engineering Hot Rodz® Optional Items DXE-MM-1 - Transformer Dual Impedance The MM-1 is a dual ratio UN-UN (unbalanced to unbalanced transformer). Great for coupling your 50Ω...
- Page 8 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;...
Need help?
Do you have a question about the Hot Rodz DXE-HR-2P and is the answer not in the manual?
Questions and answers