What is the model number of the offending modem?
Garry, NI6T
On 10/23/2014 3:33 PM, JC wrote:
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
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