Ferrite Snap On Combo Pack, Mix 31,61,75 ID=1/2"/12.7mm, RFI Range 150 KHz-2000 MHz, 10 FiltersProduct DetailsInitial Permeability (@ 10KHz): 1500Material: MnZnMax cable size - in/mm: .5/12.7OD (A) - in/mm: 1.22/31ID (B) - in/mm: .514/13.1Length (C) - in/mm: 1.55/5Z (ohms per bead - single turn 1 MHz): 25Z (ohms per bead - single turn 5 MHz): 71Z (ohms per bead - single turn 10 MHz): 100Z (ohms per bead - single turn 25 MHz): 156Z (ohms per bead - single turn 100 MHz): 260Z ohms (per bead - single turn 250 MHz): 260Now you can get a ferrite snap on combo pack of 10 RFI filters in our most popular 1/2" size with all three filter ranges (great if you don't know the interfering frequency and need to cover the entire range when troubleshooting an RFI problem).
Mix 75 covers 150 KHz to 10 MHz (3 filters)
Mix 31 covers 1-300 MHz (usable to 500 MHz) (4 filters)
Mix 61 covers 200-2000 MHz (3 filters)
Use multiple turns for best results. (2 turns - 4 times a single turn, 3 turns = 9 times a single turn, etc.)
Now you can get a ferrite snap on combo pack of 10 RFI filters in our most popular 1/2" size with all three filter ranges (great if you don't know the interfering frequency and need to cover the entire range when troubleshooting an RFI problem).
Mix 75 covers 150 KHz to 10 MHz (3 filters)
Mix 31 covers 1-300 MHz (usable to 500 MHz) (4 filters)
Mix 61 covers 200-2000 MHz (3 filters)
Use multiple turns for best results. (2 turns - 4 times a single turn, 3 turns = 9 times a single turn, etc.)
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.