Garage Door Opener RFI Kit

Slip On Feed Line Common Mode Line Isolator - 1/2"/12.7mm coax cable, 1.8-300 MHz

SKU BA-8-5
$19.95
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Slip On Feed Line Common Mode Line Isolator - 1/2"/12.7mm coax cable, 1.8-300 MHz
Product Details
Brand: Palomar Engineers
MPN: SLO-1/2-NN, NN=5, 10, 15
Country/Region of Manufacture: USA
Effective Frequency Range (MHz): 3-300 (5 bead), 1.8-300 (10, 15 bead)
PEP Power Rating (watts): same as coax cable rating
Choking Impedance Range (ohms): 5 bead: 200-900, 10 bead: 400-1400, 15 bead: 600-1700
Common Mode Attenuation (db): 5 bead: 9-20 db, 10 bead: 16-24 db, 15 bead: 17-25 db
Estimated Insertion Loss (db): .025
Input Connector Type: none
Output Connector Connector Type: none
Ground Connector (Y/N): none
Enclosure Size (LxWxH inches): none

1/2″/12.7mm max Cable Size Chokes

Model SLO-1/2 family of chokes are for use with ½” coax cable like RG-8, RG-213, 9913, LMR-400 and similar cables up to ½” diameter – works on all cable impedances (50, 62, 75, 90 ohms etc). 80-6 meters.Choose SLO-1/2 (5 beads) or for extended choking, choose SLO-1/2E (10 beads) or for super extended choking choose SLO-1/2SE (15 beads).

Select chokes with minimum of 500 ohms at your frequency of interest for best results or upgrade to our CUBE(TM), Super Choker(TM) or Maxi-Choker(TM) chokes up to 10,000 ohms choking.

Select 5 bead version for 80-2 meters use; 10 bead version for 160-6 meter use, 15 bead version for even higher choking power on 160-20 meter frequencies. Power rating is same as coax cable used power rating. Protective heat shrink included with beads and instruction manual.

Snap On and Slip on Feed line chokes available in sizes to fix cables with outside diameters of 1/4", 3/8", 1/2", 3/4", 1" - check website for other size options.

The 5 bead, 1/2" model was previously part # BA-8

Testimonial:

KI7AY
Wanted to let you know that I was having a problem with RFI on 40m, but immediately after installing your Slip On Coax Feed Line Choke -1/2"/12.7mm cable, 1.8-300 MHz on a new RG-213 jumper between the IC-9100 and tuner, IT WENT COMPLETELY AWAY!


Christmas lights or yard lights with switching DC power supplies are often the RFI source and a clamp on ferrite bead on the AC AND the DC side feeding the lights is needed to help suppress the switching power supply RFI noise.  Suitable snap on beads are FSB31-1/2 for the 1-250 MHz range.

We have also had reported wireless HDTV boxes, and FOSCAM and AMCREST security camera systems causing RFI to garage door remote openers. Use our Garage Door Opener RFI kit to suppress the interference to the opener (VICTIM) – you need one kit for each opener.  Maximize the distance from the camera to the openers may also help.  Additionally shield cable to the garage door sensors may be needed depending on severity of the camera RFI.

Obvious Tech Note: make sure your remote batteries have enough energy to activate the GDO or the signal they transmit may not be large enough to over ride the RFI signal, but a fresh battery may be able to overcome the weak RFI source and allow the GDO to operate correctly.