He could offset the carrier a bit one way or the other, (maybe by 1500 Hz ?) and then plot the response of the filter by looking at the noise pattern on any waterfall display
It would be a great learning exercise also!!
Gordon kx4z?
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On Mar 9, 2025, at 10:37, Evan Hand via groups.io <elhandjr@...> wrote:
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Hi Ted,
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Since you have the Memory Manager software, I suggest you save the values to a file and do the BFO adjustment again.??
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I thought about the symptoms again and do not believe the modulator failure is the most likely cause.? The carrier is significantly reduced in the video.? If the modulator failed, I would expect a much higher value for the carrier (BF0).? Also, the SSB crystal filter would limit the output to a 3KHz span.? It could be that the SSB filter is damaged somehow.
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Hopefully, others can chime in here, as I cannot explain the data.
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73
Evan
AC9TU
