Home DX News Poll – HF noise levels Poll – HF noise levels By DX-World - May 30, 2018 This latest poll was suggested by reader Zoran, WA7AA. If you have ideas for future polls, then please get in touch. The problem of HF noise level over the years.. Increased drastically? Increased somewhat? Stayed the same? Has it decreased? View Results Loading ... RELATED ARTICLESMORE FROM AUTHOR DX News DX Arctic/Antarctic POLL: Will 3Y0I be an ATNO for you? DX News Thank you!