Space Collage:
According to our team “The frequency offset is ~18025 Hz on Spectravue, so it looks likely. He’s tuned to XB, so just seeing the very tip of the PM carrier.”
http://spacecollege.org/isee3/detecting-isee-3-with-a-8-foot-dish.html
Phil Karn KA9Q
“I calculate a C/N0 of -2.5 dB-Hz for you, depending on mod index. Seem right? That’s weak!”