Off Center Fed (OCF) Dipole Baluns

1945727727 - Off Center Fed (OCF) Dipole Baluns
+3

LED Light RFI kit - 1 Filter for AC Power Line RFI Suppression .15-10 MHz

RFI-LED-LIGHT
$9.95
In stock
1
Product Details
MPN: RFI-LED-LIGHT

Add a ferrite filter to LED Overhead Light fixtures switching power supply to suppress ugly interference back fed into the AC power lies which act as radiating antennas and cause interference to surrounding electronic devices (yours and your neighbors)! Order 1 set for each LED light fixture.

You get a snap on filter (1/4" ID) for the AC side of the power supply.

All ballasts in a particular location must have a filter otherwise RFI may not be suppressed to a measurable value. Suppresses RFI in range of 150 KHz to 10 MHz.

TECH NOTE: You must change the dimmers (if used) to LED dimmers otherwise the dimmers may be the noise generation problem, I have heard that the LUMITRON MAESTRO PRO LED+ are very effective but expensive solutions.

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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