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Specialist in Multirotor Tech & FPV Equipment

Notice to customers: Flying Tech will be closed Tuesday 26th. Orders placed from now will be shipped on Wednesday 27th - thanks for your patience.

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FPV range and video quality isn't only determined by transmitter power and antenna gain; power supply noise is also a factor. A lot of people use the same battery to power both their drone and their FPV setup, the problem with this is that it can cause interference, seen as moving lines in your video feed. The interference is a product of the motors causing voltage fluctuations as they change RPM. If you find that you suffer interference when your motors are running and not when they aren't, then a noisy power supply is probably your problem.

One solution is to use a dedicated battery to power your FPV setup, but this will add extra weight and it means yet another battery to charge. A better solution is to use what's called a power filter (also known as a LC filter). The filter is installed between your FPV gear and the incoming power from the battery. This power filter uses an inductor and capacitor to remove noise, feeding a clean power supply to your FPV gear.

This power filter is suitable for setups up to 16V and maximum 2A (200mA) load.

Note that since the motors/ESC are the biggest cause of noise, depending on the size of motors/ESC you use, you might not need an LC filter at all. Conversely, in some extreme cases an LC filter will not be able to properly filter out the noise. In which case you should use a separate battery to power your FPV gear.

  • Voltage drop over filter: 225mV at 900mA
  • Impedence/ESR: 0.06Ohm at 100kHz/16V
  • Ripple Current: 1190mA
  • DC Resistance: 0.25 Ohm/path
  • Max 16V Input (2-4S Li-Po)
  • Dimensions: 38x15x13mm
  • Weight: 9g

None Available


By Edds (not verified) on

Hi team,

I think I understand how to wire this device but could you let me know if my below understanding if right?

1 - my current FPV Camera system is powered from the FC
2 - my current VTX pulls it power from the PDB

3 - Do I wire this filter in between the camera and the FC or, between the VTX and the PDB?


Thank you

By admin on


Between the VTX and PDB is the correct place.

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Sorry, we don't currently have any product related advice for this item. For general tips, tutorials and help please check out our Multirotor Beginner's Guide. Alternatively feel free to ask us a question.

UK Express Shipping - Next Day Delivery on orders placed before 4pm

COVID-19: We are still shipping out orders daily, but have changed our same day shipping cut-off time to 1PM to help cope with demand. If an order is placed after 1PM we will still do our best to ship same day as our daily postal collection is around 4:15.

Please be aware that deliveries with Royal Mail are taking longer to get through. At the moment we are finding it can range from next day to even up to two weeks, with 3-5 days being typical. So if you choose Royal Mail as a shipping method please be patient, shipments aren’t going missing they are just taking a while to get through the postal service. For fast deliveries we recommend choosing DHL.

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For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options. Royal Mail Special Delivery will arrive by 1PM the next day and for an extra fee can be delivered on Saturdays. APC Overnight offers next day delivery with full tracking and a 2hr time slot pre-delivery text notification. DHL is a good option for larger consignments and remote locations such as Northern Ireland and Isle of Man. All high value orders are fully insured and will likely require a signature on delivery.

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