6600M with noise level with no ant connected

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  • Updated 8 months ago
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with the ant disconnected and nothing plugged in except the ethernet cable I get a reading of s2 to s3 through out all bands. Please note all noise mitigations are off.
I was wondering if this is normal for the 6600M?
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mike /k6mgk

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Posted 8 months ago

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Photo of Steve - K6SRS

Steve - K6SRS

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Many conversations about this on the forum. Yes, normal. Measuring all internal noise across a wide band. Go to narrow band CW and you will get something more like an analog radio.
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Bill -VA3WTB

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On your flex it is completely normal.
There is always RF present in the receiver, always.
Simply, the FFT bins are being read all the time, they always have some RF in them.

Do a search here on the community on this subject, there are lots explained in deeper detail.