A bad S9 plus growling noise suddenly began about a week ago that covered the entire 80 meter band making it totally unusable. Other bands including 160 meters were ok. Checking with neighbors for new devices didn't turn up anything. The noise continued for another few days so decided to eliminate the house. Got lucky with this one. Got up early, moved the antenna from main radio to a FT-847, connected a battery, and verified that the noise was still there. Started to go outside and pull the main disconnect when I heard a loud POP. It was a CFL bulb that my wife had installed in one of the kitchen lights about six months ago. Pulled the bulb out not thinking too much of it but decided to go back up and check the receiver anyway. Yep, the noise was completely gone and has not returned over the past week. Although not a scientific conclusion, these CFL bulbs can generate some strong RF noise just before going out. Data from the CFL bulb is GREAT VALUE, Model EDXO-14, Item number GVS144DL. Hope this might help some in future noise tracking.
73's Mack N4SS _________________ Topband Reflector Archives - http://www.contesting.com/_topband
