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

K9MA k9ma at sdellington.us
Tue Mar 3 19:22:48 EST 2020


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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