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@n8dmt@mastodon.radio · 3 months ago

Si5351 CLK1 Output: Adding two low pass and one high pass filters cleans this right up. Spurious are now > 50 dBc!
#HamRadio #TestEquipment #Si5351

Photo of test setup with three blue SMA filters added to the CLK1 output to remove harmonics and sub-signal junk. All spurious are now more than 50 dBc.

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