TS-590S Reduced HF Output - 6m Full Power
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Looking for advice on a puzzling issue with my TS-590S. The rig produces full 100W on 6 meters but reduced output on all HF bands. All other functions work normally, and the radio passes self-test. I've verified my dummy load and power meter are accurate with another transceiver. This seems consistent with voltage drop issues under TX load from poor power connections, as HF bands typically draw more current than 6m.
Has anyone encountered this specific failure mode? Planning to check DC voltage at the finals during transmission next. Any other troubleshooting suggestions before I tear into the RF deck?
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