[RFI] Update on W9RE 160 meter interference from neighbors cable box/power supply.

[Dave Cole]

Seeing things like that gives me a bit of hope, things are getting a bit 
better RFI wise...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 3/3/20 4:22 PM, K9MA wrote:
> It does seem that newer models of most everything electronic have better RFI characteristics, in both directions. I’m sure there are exceptions, like those $3 USB chargers.
> 
> 73,
> 
> Scott K9MA
> 
> ----------
> 
> Scott Ellington. K9MA
> 
>   --- via iPhone
> 
>> On Mar 3, 2020, at 5:53 PM, Don Kirk <wd8dsb at gmail.com> wrote:
>>
>> A little over a week ago I posted that we (W9RE & WD8DSB) tracked down RFI
>> to a neighbors Comcast Cable Box or its associated power supply.  We found
>> the problem on a Friday, and on the following Monday the homeowner took his
>> Cable Box and its power supply to the local Comcast facility, and they gave
>> him a new Cable Box and this solved the 160 meter RFI problem Mike (W9RE)
>> was having.
>>
>> The new Cable Box has a built in power supply and its model number is
>> RNG150N, whereas the old cable box was an RNG100 with an external power
>> supply part number AD6550LF.
>>
>> Today Mike (W9RE) took his neighbor a bag of Chocolates to thank them for
>> their assistance, and Mike then obtained the following information from his
>> neighbor who's name is Richard.
>> --------------------------------------------------
>> "Richard said that when he took the offending unit into Comcast they told
>> him the unit was ~7 years old and needed to be replaced anyway.  They
>> looked up his account and gave him the new box (picture attached with built
>> in p/s).  It was all hooked up and I didn’t want to mess things up so I
>> didn’t get a model number from the back but on the front is RNG 150N cables
>> were just too short to pull it out.  He said all he had to do was hook it
>> up, call them with the MAC address and wait for a download process.  He
>> said it was no problem."
>> ---------------------------------------------------
>>
>> This case is closed, and really glad Comcast was able to instantly provide
>> new hardware that solved the problem.
>>
>> 73,
>> Don (wd8dsb), and Mike (W9RE)
>>
>>
>>
>>
>>
>> .
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> 
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