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Maxi-Core
Formed Aluminum Case
DXE-BAL050-Series 1:1 Ratio
DXE-BAL100-Series 2:1 Ratio
DXE-BAL200-Series 4:1 Ratio
DXE-BAL300-Series 6:1 Ratio
DXE-BAL450-Series 9:1 Ratio
DXE-BAL600-Series 12:1 Ratio
1200 Southeast Ave. - Tallmadge, OH 44278 USA
Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200
Fax: (330) 572-3279 ∙ E-mail:
Baluns
®
Cast Aluminum Case
DXE-BAL-INS Rev 8a
© DX Engineering 2016
DXEngineering@DXEngineering.com
Formed Aluminum Case
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Table of Contents
Related Manuals for DX Engineering Maxi-Core DXE-BAL050-Series
Summary of Contents for DX Engineering Maxi-Core DXE-BAL050-Series
- Page 1 DXE-BAL200-Series 4:1 Ratio DXE-BAL300-Series 6:1 Ratio DXE-BAL450-Series 9:1 Ratio DXE-BAL600-Series 12:1 Ratio © DX Engineering 2016 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 "second conductor". The balun has to do a good job and be reliable. DX Engineering has the expertise to design and build a better balun that will deliver more power to the antenna, be more reliable, and in many cases cost less than products made by others.
- Page 3 connected at the other end. The balanced terminals on a current balun can be used to feed unbalanced or balanced loads or lines equally well. They can also be used as broadband phase-invertors, baluns or ununs. Voltage Baluns Voltage baluns always try to force the output terminals to equal voltages, which means currents can be far from even.
- Page 4 T-suffix tuner baluns for higher frequencies (above 15 MHz) on resonant antennas unless they are used with tuners. DX Engineering tuner-baluns work equally well and handle the same power on the tuner input or output, so use them wherever most convenient for your system. For resonant antennas use a standard DX Engineering balun, which are models that end without a "T"...
- Page 5 ® DX Engineering Maxi-Core Balun Selection Chart Antenna Types Suggested Balun(s) Dipole, coax fed, resonant DXE-BAL050-H05-A DXE-BAL050-H10-A DXE-BAL050-H11-C Dipole, double extended DXE-BAL200H10AT DXE-BAL200H11CT Dipole, folded, 300 ohm feed DXE-BAL300-H10-A Dipole, folded, coax fed, resonant DXE-BAL300-H10-A Dipole, folded, multi-wire DXE-BAL450-H10-A Dipole, folded, non-resonant...
- Page 6 Note: Some models may have a threaded lug with a wing nut on the same side as the coaxial cable connector. This is NOT a ground lug - this is a spare wing nut holder only. Note: Balun mounting brackets are required to help keep the connections from getting too much strain on them.
- Page 7 The balanced terminals do have a phase relationship with the unbalanced coax connector. The RED “D” in DX Engineering on the balun label is adjacent to the positive phase terminal as shown below. In some applications, such as resonant or trapped dipoles and Yagis, the phase is not important. Other applications, such as single-wire-fed antennas, require the antenna system ground to be attached to the negative phase terminal.
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Page 8: Installation
If DX Engineering baluns are used in an array of two or more phased vertical antennas, it is essential that the positive phase terminal be connected to the antennas and the negative phase terminal to ground. Reversing these connections can put the antennas in the array out of phase with each other and ruin the phase relationship you have established, and for the desired antenna pattern. - Page 9 The DXE-UWA-KIT Center-T is used for the attachment of a “messenger line” which can be strung above the antenna wire. This line can be thin 3/32” Dacron rope such as DX Engineering SYN-DBR-94-100 which has a breaking strength of 260 pounds. The use of this line will keep the antenna element from stretching over time and changing its resonant frequency.
- Page 10 You should use good low loss coaxial line and keep the coaxial line length as short as possible. RG-8X and smaller may not do a proper job; DX Engineering RG-213/U or equivalent is the minimum recommended coaxial cable.
- Page 11 Formed Aluminum Enclosure DX Engineering baluns are not affected by moisture and may be left outside in all types of weather, including heavy rain, as long as the balun is positioned so that water will drain from the case. However, they may not be immersed in water and care should be taken to avoid blocking the drainage of any water that could get inside.
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Page 12: Mounting Kits
Mounting Kits DX Engineering offers several optional mounting kits. For boom or mast mounting, use the optional DXE- BMB series Balun Mounting Kits which include an aluminum bracket and stainless steel circular clamps and hardware. Kits are available to fit booms, masts or tower legs from 0.75" OD to 3" OD. Refer to Figure 6. - Page 13 There are three types cases used for DX Engineering Baluns. Two are formed aluminum and one is cast aluminum. The following are typical examples of the three types of cases for the available baluns showing the method for mounting them to the Center-T (U.S. Patent No. 7,764,244) of a DXE-UWA-KIT.
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Page 14: Optional Items
300 Ω Ladder Line DX Engineering offers high-quality, 300 Ω ladder line rated for full legal transmit power. Each conductor is 18 gauge consisting of 19 strands of copper clad steel wire, resulting in a Velocity Factor of 0.88. This ladder line is ideal for use with multi-band dipoles or other multi-band antennas and is recommended when using our tuner baluns. - Page 15 - It's the RTV. Normal RTV gives off acetic acid when it cures. That's the vinegar smell. The acetic acid causes the corrosion. DX Engineering has located a Neutral Cure RTV made right here in Ohio that is non-corrosive and is safe for sealing those baluns and other electronic gear that are going to be out in the weather.
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Page 16: Technical Support
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; no allowance shall be made for any labor charges of Buyer for replacement of parts, adjustment or repairs, or any other work, unless such charges are authorized in advance by DX Engineering.
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Questions and answers
I have a Palstar AT1KP antenna tuner. When I install a DX Engineering BAL 050 H10 AT between my tuner and 450 ohm ladder line, my tuner no longer will match my antenna above the 20 meter band.
The likely reason the Palstar AT1KP antenna tuner does not match an antenna above the 20 meter band when using a DX Engineering BAL 050 H10 AT balun is due to impedance mismatches caused by the feedline length or antenna configuration. The system uses a non-resonant antenna with ladder line, and if the ladder line length causes impedances outside the tuner's matching range, the tuner may not be able to tune higher frequencies. Adjusting the ladder line length can change these impedances and help the tuner reach those frequencies.
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