ok, you edited the question and it is now within my understanding. With the PCM receiver the baseline was 12 steps, while previously on all airplanes it was a miniumum of 50 to 55 paces. With PPM, last night simply placing the transmitter on a table maybe 20 feet from the airplane with an 8103 transmitter ant. down, I was getting servo jitter in the airplane with the ant. in some positions but not all positions. Then I started the test by placing a receiver and a servo all over the airplane to help determine where the noise was coming from. Tonight I will start removing items from my control panel to see when the noise goes away.

Sean