Dick --
For the SG-230 autotuner, SGC suggests saying "Aaaaaaahhhhhhhh" into the mic.
That gives a pretty stable SSB signal to tickle the autotuner. So does holding the mic a foot away from your mouth and whistling (if you can whistle).
That's a workaround for your problem, not a solution, but it's a proven workaround.
. Charles VA7CPC
--- In ic7000@..., "Dick" <richard@...> wrote:
... However, on SSB if I talk into the microphone the auto-tune features starts to work but takes a while to get a good SWR because the power output varies with my voice. On the other hand switching to CW or FM and keying the rig (CW) or the mike (FM) it rapidly matches up and both the SWR and frequency are displayed.
. . . >
Dick, W1HIL