Hi guys I would like to share with you what NX4D just found out. Doug has experiencing a strong noise on top band for almost a year. He did try to find it everywhere, disconnected all appliances in the house and the noise was still roaring.
For some coincidence Dug removed the cable from the modem and the noise quit. The issue is that the Arris modem has an internal battery to work without AC power and when you remove it from the AC line the modem is still generating noise and you can come up into a conclusion the modem is clean. It is not, actually there are several reports of RFI going on for several years and FCC is doing nothing to stop it. Here another source of information about that modem http://forums.comcast.com/t5/Voice-Service-and-Equipment/RFI-Caused-by-Arris -Modem/td-p/548591 Doug also found many complaints about Cisco Modems too, especially the switching supply wall warts. So watch out is you have Comcast cable modem, it is necessary to choke the cable and the AC cord with FT240 # 31. With this fix ,the noise dropped from s8 to s0 but still audible at Doug receiver. Regards JC N4IS _________________ Topband Reflector Archives - http://www.contesting.com/_topband