In my initial post I thought there was something going on with the class E rigs because I was told the audio was limited in bandwidth but the actual signal on the air was much wider. I now suspect there is no limiting of the audio bandwidth going into some of the class E rigs and that is why they are so wide. And yes, I have seen some very bad plate modulated rigs as well. The class E rigs DO have their own look on the panadaptor though, the audio is often dense out to 5kc and then its reduced but out another 5 Kc or there abouts, the built in filter? I don't think the thread should be deleted, its more about good operating practice and consideration of other users on the band and no names or calls were mentioned. People who run over 100? watts carrier should think about investing in some sort of way to check what is going out, cheap sdr, the REA mod monitor, a scope, peak reading power meter, etc... I want to build a good filter to cut or greatly reduce any audio over about 4.5 Khz from hitting the modulators.