We Are Hiring in Florida and Delaware
Icom Extreme Sale

Palomar Engineers CB-4-1500EBV

Palomar Engineers CB-4-1500EBV

50:200 (4:1) CUBE™ Voltage Balun, 1.8-61 MHz, 1.5KW

HRO Discount Price: $119.95*


*After Coupons & Promotions.

Current Stock Status At These Ham Radio Outlet Locations
CB-4-1500EBV Description     Hide

MPN: CB-4-1500EBV
Country/Region of Manufacture: USA
Type: Balun
Input ohms/Output ohms: 50 in, 200 out
Frequency Range < 2:1 SWR (MHz): 1-31
PEP Power Rating (watts): 1500
Enclosure Size: 4" x4" x 2"
Weight (pounds): 2

Antenna Compatability: Dipoles: Extended double zepp, folded 2 wire, off center fed (OCF); Loops: Horizontal, vertical - coax fed

After many requests Palomar Engineering has created a compact, special balun for OCF antennas with vertical radiators. The CB-4-1500OEBV is a CUBE™ enclosure containing a dual core, bifilar wound, voltage balun to force equal voltages on the unequal sides of the off center fed antenna and force current down to the vertical radiator so it acts like a vertical antenna adding to the radiation pattern at low angles for DX.

The vertical radiator is typically 10 feet of 50 ohm coax for the 40 meter long (67 feet at the top) and 22 feet long for the 135 foot OCF. At the bottom of the vertical radiator you should have a line isolator or 1:1 balun (such as the Palomar BA-8E or BA-58E sleeve balun, or CB-1-1500 cube balun) to stop the current on the outside braid of the coax from using the rest of your feedline back to the radio as a long vertical radiator causing RFI and other problems as well as skewing the radiation pattern. The balun can be used with any size.

The balun is rated for full 1500 watts PEP from 1.8Mhz – 61 Mhz and usable to over 150 MHZ! (see graph) The balun can be used with either a 50 or 75 ohm coax vertical radiator and feedline.

The matching line isolator is the MC-1-3000 which should be used at the end of the vertical radiator.

    Manufacturer's Website

CB-4-1500EBV Accessories and Related Items


1-3/4" Red Nylon Pulley and 1/4" Spring Hook Set