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AM Wide:

AM Narrow:

SSB:

CW Wide:

FM:

The spikes visible in the SSB and CW tests are not visible when the radio is turned off, so they appear to be real and generated inside the 735.

My 735 does not have a narrow CW filter installed, so I could not perform that measurement.

The IC-735 selectivity specs are as follows:

AM Wide:   6.0 kHz @ -6 dB, 18 kHz at -60 dB
AM Narrow: 2.3 kHz @ -6 dB, 4 kHz at -60 dB
SSB, CW:   2.3 kHz @ -6 dB, 4 kHz at -60 dB
FM:         15 kHz @ -6 dB, 30 kHz at -60 dB