Radial Free Verticals

Radial Free Verticals By the QRM Guru team From time-to-time we receive emails about QRM and TVI associated with these radial free verticals. The symptoms will usually present as TVI, RF feedback and sometimes an inability to achieve a desirable SWR on the lower bands.  We also hear of situations where the antennas appear deaf […]

Read More

No House Electrical Earth… interference to neighbours

Thanks Roy VK3GB for this somewhat left-field story about interference. Interference, there is always a sign! Some years ago I moved house and as normal spent the first year renovating and redesigning the garden. Why so you long you may ask? I was laying 120 radials ready for my Butternut HF2 vertical. Once erected you […]

Read More

Log Sheet – Neighbours complaining of interference

If your neighbours complain that “you are ruining their TV or radio reception”, engage in a friendly conversation.  In the first instance, do not confirm that your station is the source of the noise.  Offer to assist and invite them to keep a log of the interference.  Make sure you keep a detailed log of […]

Read More