Brett, Are you using the three diode circuit at < http://www.amwindow.org/tech/htm/3diodeka.htm>? If so, this thing will clip all negative peaks that cross the "keep alive" level. How abruptly would depend on the internal impedance (i.e., stiffness) of the keep-alive supply but would give essentially the same effect as clipping in the PA by crossing the zero line. This is where your splatter is coming from. Give the circuit at <http://www.amwindow.org/tech/htm/3diode.htm> a try. I've had good results with this setup adjusted to give up to 200% in the positive direction without overmodulating the negative side. For the resistor, I've found a value around the load impedance presented by the PA works well. You must use a scope to adjust this scheme.
Good luck. Dennis D. W7QHO Glendale, CA --- StripMime Report -- processed MIME parts --- multipart/alternative text/plain (text body -- kept) text/html The reason this message is shown is because the post was in HTML or had an attachment. Attachments are not allowed. To learn how to post in Plain-Text go to: http://www.expita.com/nomime.html ---
