Off Center Fed (OCF) Dipole Baluns

983127278 - Off Center Fed (OCF) Dipole Baluns
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Boat/RV Owner’s Electronic Interference Suppression Kit

RFI-Boat
$95.00
In stock
1
Product Details
Brand: Palomar Engiineers
UPC: Does not apply
MPN: BOEISK
Type: New
Country/Region of Manufacture: United States

Got an electronic interference problem on your boat or RV? Do you hear HUM-BUZZ-NOISE when you use the fish finder/radar/GPS/Generator or hear your voice on the stereo speakers when you transmit on the radio? Maybe you heard buzzing or humming when you turned on the battery charger/inverter/generator – any of these symptoms indicate you have RFI issues on your boat or RV and you need to stop it or the HUM-BUZZ-NOISE may drive you nuts!

But you don’t have to worry – We got the fix for you – lots of filters, all in a small box, that are easy to install on the wires of your electronic stuff that is bothered by the RFI.

If you have RFI, you need this kit:

Boat Owner’s Electronic Interference Suppression Kit

Use this filter kit to suppress interference noise between electronic devices on your boat including: radar, fish finders, audio/video systems, inverter noise, solar controllers, vhf radio, marine/ham radio, auto pilots, electronic gauges, PA systems, and many other electronic devices.

What is included:

A total of 17 Ferrite Ring/Snap-On Filters

Ring: 1.4” ID x 6, Snap on: 3/8” ID x 6, 1/2” ID x 5

Mix 31 Interference Range: 1-300 MHz

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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