so ive been on HF for about two years now mostly doing digital modes but lately ive been getting into SSB phone and honestly my audio sounds pretty rough compared to what i hear from other stations. im running an IC-7300 with the stock mic and i havent really touched any of the TX settings because i figured the defaults would be reasonable enough out of the box.

a guy i worked last week on 20m said my audio sounded thin and a little harsh, which i guess makes sense because when i listen back on recordings it does kind of cut through in an unpleasant way. ive been reading about TX bandwidth settings and the bass rolloff and all that but its hard to know where to start without just making things worse.

anyone have a starting point for dialing in better SSB audio on the 7300 specifically? or just general tips that apply across the board? i know mic technique matters a lot too but im not sure how much i can fix in software vs just learning to talk into the mic better.

the 7300 actually has really decent built in processing once you learn where to look. first thing id check is the TX bandwidth setting — a lot of people leave it on the narrower setting (i think it defaults to something like 100-2900 Hz) which cuts a lot of the warmth out of your voice. try widening that to 300-2700 or even 100-3000 depending on conditions and see how it sounds. you lose a tiny bit of splatter protection but on a clean signal it makes a huge difference in perceived quality.

also check your mic gain and the TX monitor. most people run mic gain way too hot which is where that harshness comes from — compressor or no compressor, clipping the front end sounds bad. id suggest getting a friend to spot check you on a dummy load while you talk and have them tell you if your ALC is pegging constantly. a little ALC action is fine, slamming it is not. mic technique honestly matters too — stay a few inches back from the mic rather than eating it, speak across it slightly not directly into it if you can.

yeah what he said about mic gain is huge. i spent like three months thinking my radio was broken because my audio was terrible and it turned out i had mic gain cranked to like 80% on my 7300 and the ALC was just getting destroyed the whole time. dropped it down to around 40-50 and suddenly people were complimenting my audio. also honestly the stock hm-219 mic is not great, a lot of people swap to a desk mic or even just a decent headset and it makes a noticeable difference. not saying you need to go buy stuff right away but its worth knowing thats an option down the road.