Demonstrating Solar Inverter Noise Cancelling with a Timewave ANC-4 and Airspy HF+

At his house W1VLF found that his solar inverter was causing huge amounts of interference on the HF bands, essentially making any hope at receiving shortwave or amateur radio signals impossible on his Airspy HF+ Discovery . However, over on his YouTube channel he's demonstrated a solution that allows him to almost completely cancel the noise.

The solution involves using a Timewave ANC-4 noise canceler, which is as analog noise cancelling device available from the manufacturer for US$209.95. To use the device you also need a noise probe which can be a small loop antenna. The noise probe is connected to the ANC-4 and placed near the source of the noise, which in W1VLF's case was just on the solar inverter enclosure mounted on the outside of his house. Then by tuning the gain and phase knobs on the ANC-4 the noise can be cancelled out of the signals received by the main antenna. 

In the video W1VLF demonstrates how effective noise cancelling with the ANC-4 can be by showing the before and after results with his Airspy HF+ Discovery.

Kicking Solar inverter noise in the A$$ with noise cancelling

2 comments

  1. Cyk

    Er, what about asking the manufacturer of the inverter to remove the noise?

    They are responsible for that.

    • dave

      Indeed, report it to the relevant Authority and also insist on its removal. Made in China no doubt. Here in Britain Ofcom are a complete waste of space in dealing with such things..but the box ticking multi-cult female who knows nothing about radio they put in charge is on overview 600k a year though.

      Radio is being destroyed by unfit modern electronic devices.

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