[Elecraft] Auto-Notch Broken in 3.25 (I probably missed this)

Ron D'Eau Claire ron at cobi.biz
Sun Aug 16 18:25:01 EDT 2009


Ya' made me go look (again) Mike:

On mine, both auto and manual work, but the manual notch is much deeper than
the automatic notch. 

Using the K2's internal metering while invoking the notch listening to a
clean input from a signal generator, I see a 38 dB drop in level using the
automatic notch and a 51 db drop using manual notch. 

Ron AC7AC


-----Original Message-----
G'day,

To hopefully settle this, at least for my own case, I reloaded Beta 
3r19 and did the following test:

14195kHz SSB, AGC F.  S7 signal from my K2.  With my line out 
setting this gave a -46dB signal displayed in Spectrogram 16. 
Applying auto notch reduced this to -87dB or better.

Reloaded Beta 3r25.  With the same set up the signals displayed 
were -46dB notch off, -72dB notch on.

I conclude that something significant has changed with auto notch.

Regards,

Mike VP8NO




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