Off Center Fed (OCF) Dipole Baluns

50:800 ohm (16:1) CUBE™ Balun, 1-31 MHz, 1KW/2KW PEP

SKU CB-16-1000TS
$119.95
Bulk pricing available for quantities of 2 units or more
Output Connector
PEP Power Output
Input Connector
1
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50:800 ohm (16:1) CUBE™ Balun, 1-31 MHz, 1KW/2KW PEP
Product Details
Type: BALUN
Input ohms/Output ohms: 50 in/800 out balanced
Frequency Range < 2:1 SWR (MHz): 1-31 MHz
PEP Power Rating (watts): 1000/2000
Insertion Loss (dB): .2
Input Connector: SO-239 UHF
Output Connector(s): Top Studs/Side Eyebolts
Transformer Topology: broadband binocular core
Hardware Type: Stainless Steel
Enclosure Size: 4" x 4" x 2"
Weight (pounds): <2
Antenna Compatability: T2FD, Rhombic, V beam

Available in eyebolts or top stud versions and 1KW/2KW PEP ratings. Excellent SWR over 1-31 MHz range.

Manual Down Load for CB-16-1000/2000

Testimonial

Hi Bob,

Radio: Flex-6700 running barefoot -10 to 100 Watts max.
Antenna: MFJ-1216 – 160/80 meter OCFD wire antenna with matching network.
Elevation: Over 60 feet AGL – fully extended.
Installed: Mid November 2013

I operate mainly on the digital modes running less than 50 Watts.  All of the sudden after a few days operating with this antenna, I start to have RFI and my radio was acting up; such as changing bands, SWR changing values, radio failures and turning off. However, when I used my Hy-Gain 18 HT vertical on the same band none of the abnormality occurred.
I contacted MFJ and confirm that what I was noticing was a failure of their “matching network” AKA balun.  They offered no solutions. Then I contacted Palomar Engineers and bought the 1:1 new toroid RF beads.  I called Palomar Engineers and I happened to talked to you directly; regarding the on going issue with the MFJ antenna. I found out that the 1:1 balun was not what I needed (I was miss-informed by MFJ that it was 1:1 matching network.)
You offered to make the required balun 4:1 and the rest is history.

Here are my findings:

  1. No more RFI displayed on the monitors.
  2. Radio not acting up or turning off.
  3. The SWR at 160/80 meter is 1.2:1
  4. No antenna tuner required.  (radio goes to Bypass automatically.)
  5. Worst SWR is on 10 meter with a 2:1 but still usable, with antenna tuner 1.5.
  6. One happy OCFD user!

Thanks to Palomar Engineers design and engineering for solving this issue.

73, Ernest – W4EG