Radio observation in hydrogen line (1420MHz)

New Chinese Cavity Filter covering hydrogen line 1400-1427 MHz

I have just taken delivery of a new hydrogen cavity filter from China.

Click below to read cavity filter specifications.

https://www.astronomy.me.uk/wp-content/uploads/2024/10/WT-A9940-Q08-1-2.pdf

Click below to read the test report on this cavity filter:

https://www.astronomy.me.uk/wp-content/uploads/2024/10/241008_WT-A9940-Q08_Test-Data-1.docx

Test curves for this filter:

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