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Found my FT-991A stuck in transmit timeout timer mode. Isolated to a failed USB data port on my laptops docking station. Moving the USB cable from the back of the 991a to the FT-710 did not affect the 710.

Moving the FT-991A USB cable to another data port on the docking station cleared the locked TX key-up issue. Also unplugging power to the USB docking station dropped the TX key-up.

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No laptop was connected to the docking station at the time nor during the above troubleshooting.

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Fail-safe: TX time-out timer, enabled by default, did its job.

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Action: Put a piece of tape over the failed data port. Buy another docking station someday.

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/Rick

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Thanks for sharing. This is great information,? as many of us have 991/991A's.

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