I have a TS440 that has distored receive and transmit audio ..starts at around 14.0 MHZ and is distored all the way to the end at 30.0 MHZ. Not to bad at 14.0 MHZ but gets worst as you go up to 30.0 MHZ.....both sidebands but AM receive seems OK .. Never tried to transmit AM.... 160, 80 and 40 are OK......any help... Danny....WA4SDE