It's not so much that isolators cause intermod. They generate harmonics. For this reason, an isolator is always followed by a bandpass or low pass filter in commercial applications where good engineering practice is followed.
See: http://www.emrcorp.com/techinfo/1/pdf/rf_isolators(1-14).pdf It says: "Weak harmonics of the input signal frequency to an isolator can be found at the output of the device. This phenomena is thought to be the result of minor impurities in the ferrite material." ------------------------------------------------------------------- --- In Repeater-Builder@yahoogroups.com, Ron Wright <[EMAIL PROTECTED]> wrote: " I am not sure why an isolator would cause intermod. ..."
