Well, Tom, I am a true neophyte at AM, so I may too be wrong, but I was led to believe that the Marauder was truly designed for SSB, and only sends "controlled carrier" AM like the Drake rigs do (and likely others). Not true, full carrier AM like the older rigs. Again, I am very likely wrong, and hope others will educate me, hi. 73, Don, WB5HAK