Nur mal eine Info zu den Stoerungen beim NOAA 12 Empfang:
NOAA 9 was permanently deactivated some years ago and is tumbling
freely. Unfortunately it has a sporadic carrier on 137.500 (varies
quickly according to orientation) and can cause interference to NOAA 12
and NOAA 15.
Tiros-N and NOAA 6 are putting a carrier out on 137.500 and will
interfere with NOAA 12 and 15 when their footprints overlap.