Slip On Feed Line Common Mode Line Isolator/Choke - 3/4"/19.5mm coax cable, 1.8-100 MHz, 5,10,15,20 bead option, Mix 31, LMR600Product DetailsBrand: Palomar EngineersMPN: SLO31-3/4-NN, NN=5, 10, 15Country/Region of Manufacture: USAEffective Frequency Range (MHz): 3-300 (5 bead), 1.8-300 (10, 15 bead)PEP Power Rating (watts): same as coax cable ratingCommon Mode Attenuation (db): see graphEstimated Insertion Loss (db): .025Input Connector Type: noneOutput Connector Connector Type: noneGround Connector (Y/N): noneEnclosure Size (LxWxH inches): none.75″/19.5mm max Cable Size Chokes (includes beads and shrink wrap)
Model SLO-3/4 family of chokes are for use with 3/4” coax cable like LMR600 and similar cables up to 3/4" diameter – works on all cable impedances (50, 62, 75, 90 ohms etc). 80-6 meters.Choose SLO31-3/4-5 (5 beads) or for extended choking, choose SLO31-3/4-10 (10 beads) or for super extended choking choose SLO31-1/2-15 (15 beads).
Each additional 5 beads is approximately 6 dB of common mode rejection (also 1 “S” unit of noise reduction).
Select chokes with minimum of 500 ohms at your frequency of interest for best results or upgrade to our CUBE(TM), or MC-1-3000 Maxi-Choker(TM) chokes for higher common mode noise rejection..
Select 5 bead version for 80-2 meters use; 10 bead version for 160-6 meter use, 15 and 20 bead version for even higher choking power on 160-20 meter frequencies. Power rating is same as coax cable used power rating.
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!
.75″/19.5mm max Cable Size Chokes (includes beads and shrink wrap)
Model SLO-3/4 family of chokes are for use with 3/4” coax cable like LMR600 and similar cables up to 3/4" diameter – works on all cable impedances (50, 62, 75, 90 ohms etc). 80-6 meters.Choose SLO31-3/4-5 (5 beads) or for extended choking, choose SLO31-3/4-10 (10 beads) or for super extended choking choose SLO31-1/2-15 (15 beads).
Each additional 5 beads is approximately 6 dB of common mode rejection (also 1 “S” unit of noise reduction).
Select chokes with minimum of 500 ohms at your frequency of interest for best results or upgrade to our CUBE(TM), or MC-1-3000 Maxi-Choker(TM) chokes for higher common mode noise rejection..
Select 5 bead version for 80-2 meters use; 10 bead version for 160-6 meter use, 15 and 20 bead version for even higher choking power on 160-20 meter frequencies. Power rating is same as coax cable used power rating.
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.