I have bought an used IC7100, not modified (no SSB power mod), latest firmware installed (Release E5 from 2016). I was testing the radio for the notorious SSB TX power issue, which is in fact non-existent, my Bird 4391 wattmeter shows a proper 100W PEP in HF by using the PEP power measurement function. While I was at it, I tested the power in all bands and all modes, and noticed an anomaly: power goes up with modulation even when it should not (that is, in FM mode). For example, in UHF FM at full power (30W nominal) I get 30 W if I stay silent, but I get 35W if I whistle in the mike. This happens also in VHF FM, power goes from 47 to 57 W when modulating, and it happens in HF too (10 meters FM). If I set RF power to a lower value (20% for example) the effect is even more evident: in HF (10 meters FM) I get 25W if I do not speak in the mike, and more than 60 (my Bird shows overflow with a 50W slug) if I whistle in the mike. What's happening? Is my IC7100 modulating in FM with some spurious AM modulation? I have tried resetting the radio (from the menu) but the issue remains.