[Elecraft] I need a Sherlock Holmes (weird spurs on 40m)

[Alan Bloom]

Hi John,

In this case the Internet is not via DSL, it's via cable.  The coax 
comes out of the ground and then to the modem/router and from there via 
a 150-foot Ethernet LAN cable to the granny unit, where there is an 
additional router with its own Wi-Fi.

Anyway, that entire system was turned off when I threw the main breaker 
to the house.  I assume it could be caused by Internet from some 
neighbor, but as I said, the nearest neighbor's house is about 150 feet 
away and all services are underground.

It's a puzzlement...

Alan N1AL



On 6/7/22 19:23, John Oppenheimer wrote:
> Hi Alan,
>
> I've had issues with the service from street to modem. As I understand,
> there's a VDSL band which overlaps 7MHz band.
>
> In my case, it was reversed, any transmission on 7MHz would disable TV
> and Internet service.
>
> John KN5L
>
> On 6/7/22 7:54 PM, Alan Bloom wrote:
>> The ISP is TDS.  They offer up to 1 Gbps internet (I only pay for 200
>> Mbps) via cable.
>>
>> Just as a sanity check, I just walked down to the main house and
>> unplugged the 150-foot LAN cable from the modem/router that feeds the
>> router in the granny unit here where the shack is.  As expected, the
>> spurs are still there.  There is no wired connection from the K4 or the
>> desktop computer to the LAN (Wi-Fi only).
>>
>> Alan N1AL
>>
>>
>> On 6/7/22 18:29, John Oppenheimer wrote:
>>> Hi Alan,
>>>
>>> What is your TV/Internet provider?
>>>
>>> John KN5L
>>>
>>> On 6/7/22 6:59 PM, Alan Bloom wrote:
>>>> The weird thing about these spurs is how clean and stable they are.
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