Hi Jim, On the Rocky View Settings Transmit tab is an I / Q amplitude slider. I would try reducing the I / Q amplitude value and see if your IMD reports imporve.
73, Tony KB9YIG ----- Original Message ----- From: wa4ywm To: [email protected] Sent: Saturday, May 10, 2008 11:02 AM Subject: [softrock40] PSK31 IMD adjustment on the 20/30M RXTX? I have a 20/30M RXTX which I am using on PSK31 with Rocky. I have been told that my IMD is -6 to -9 dB (pretty bad!). How can I improve it since there is no way to adjust to an acceptable ALC level as there is with most transceivers. My output waveform looks good and is at 20 Vpp as adjusted from Rocky. I performed an I/Q xmit balance when I completed the Softrock. TNX for any help. 73, Jim WA4YWM
