50:75 ohm (1.5:1) CUBE™ Balun/Unun, 1.8-61 MHz, 1.5KW PEP, Dipole
Product Details
Type: BALUN/Unun
Input ohms/Output ohms: 50 in/75 out
Frequency Range < 2:1 SWR (MHz): 1.8-61 MHz
PEP Power Rating (watts): 1500
Insertion Loss (dB): <.2
Input Connector: SO-239 UHF
Output Connector(s): Top Studs/Side Eyebolts/So-239
Transformer Topology: broadband binocular core
Hardware Type: Stainless Steel
Enclosure Size: 4" x 4" x 2"
Weight (pounds): 2
Available as a Unun for 50 ohm coax to 75 ohm coax or 75 unbalanced load or as a Balun for 50 ohm coax to balanced load such as a low (less than a wavelength high) dipole with either side eye bolts and halyard hoist or as post mountable top studs output.
This is an impedance transformer for 50 to 75 ohms and may require a additional feed line choke to keep common mode current off the coax braid.
CB-1.5-1500EB is useful for a dipole center feedpoint for low dipoles with 75 ohm antenna impedance.
Top stud version also useful for 75 ohm ladder line to coax interface
Typical user comment:
The filter was quite effective. Was surprised that it actually reduced the noise level more than the signal so S+N/N improved by 1.9 S units. Bill