HF High Power Impedance Transformers

50:800 ohm (16:1) CUBE™ Unun 3-43 MHz - 1KW/2KW PEP

SKU CU-16-1000
$129.95
Bulk pricing available for quantities of 2 units or more
PEP Power Output
1
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50:800 ohm (16:1) CUBE™ Unun 3-43 MHz - 1KW/2KW PEP
Product Details
Country/Region of Manufacture: Made in USA
Type: Unbalanced output
Input ohms/Output ohms: 50 to 800
Frequency Range < 2:1 SWR (MHz): 1KW: 3-43, 2KW: 3-31
PEP Power Rating (watts): 1000/2000
Insertion Loss (dB): < .2
Input Connector: SO-239
Output Connector(s): Eyebolt
Transformer Topology: broadband binocular core
Hardware Type: Stainless Steel
Enclosure Size: 4" x 4" x 2"
Weight (pounds): 3
Antenna Compatability: end fed

16:1 Ununs are useful between coax and long wires with a load impedance near 800 ohms like a beverage antenna. Shortwave listener antennas also can benefit with the 16:1 unun and it may provide a better match than 9:1 ununs – this means quieter noise levels and stronger signals so you can hear distance stations easier. Output is eyebolt/output on top, ground/counterpoise on side.

Choose 1KW/2KW PEP power option depending on needs.

Custom versions available. 16:1 also available as Balun output.


The high power ferrite impedance transformer series (> 1:1), configured with outputs to act as a baluns (unbalanced coax in to balanced load output) or as ununs (unbalanced coax input to unbalanced load output) are designed for demanding radio transmitter stations that run over 1,000 watts PEP or run continuous modes like AM, digital, RTTY, FM, etc. at high power levels. Radio contest operators, commercial shortwave broadcast, and industrial and commercial stations use these transformers for for a variety of balanced and unbalanced antenna loads.  Baluns are typically used for balanced loads and antennas like dipoles, loops, log periodics, and direct feed yagi/beams.  Ununs are used  with verticals, end fed wires, horizontal dipoles, G5RV/ZS6BKW, Zepps, vertical wire beams, etc).  All products are in an enclosed NEMA water resistant box with SO-239 input connector and stainless steel side/top studs with wing nuts or side and top eyebolts.  The enclosure box has mounting “side feet” for attachment to a post or antenna boom using nylon ties.