Hmmmm.....
10 foot from the switch to the printer...6 foot from computer to switch and
1 meter (39 inches) from router to switch.
BTW, I use nothing but Cat 6 cable, so the cable is shielded for the entire
run.
Oh, and mostly on 75 (3959) and 40 (7233.5) The OCF dipole is 'tuned' using
a Palstar AT2K. I run direct on 17 meters as the antenna is 'flat' for most
of the 17 meter band. I usually run power on 75 and 40 as I need the
additional 'pop' going over the hill into California (The Sierra) as the
flat-topped OCF is NOT a cloud burner! Surprisingly enough, most of my DX
on 17 is QRP, (100 watts max, out of the radio) but contacts there are
mostly worldwide, rather than the next state over!
Joe - W7RKN
-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Dave Cole (NK7Z)
Subject: Re: [RFI] RFI In My Shack
How long is the networking cable, and what frequency did this happen on?
73s and thanks,
Dave
NK7Z
http://www.nk7z.net
On 12/02/2017 10:30 AM, Joe wrote:
> I think I forgot to mention...I have **no** audio issues with the L7,
> only the Henry. Go figger!
>
> OH, and I have very little (read: next to none!) RF in the shack.
> That is what is puzzling me! How in the heck is the RF getting into
> my network and only affecting the printer?
>
> Joe - W7RKN
>
> -----Original Message-----
> From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Dave Cole
> (NK7Z)
> Subject: Re: [RFI] RFI In My Shack
>
> Hi again,
>
> Given the old amp caused issues with your audio, and your new amp
> causes issues with your network, we can assume you have some level of
> Common Mode, (CM).
>
> My first step would be to buy or build a common mode sniffer. MFJ
> makes one for around $100.00, or you can build one for around 10 bucks:
>
> https://ham.stackexchange.com/questions/1271/how-to-detect-common-mode
> -curre
> nts-or-rf-in-the-shack
>
> If after testing with that you discover lots of CM, then start choking
> it on the booth ends of the feed-line.
>
> That may solve both your RFI issues; audio, and Networking.
>
> If that does not solve things report back here with results. The AC
> would be the next thing I would look at...
>
> 73s and thanks,
> Dave
> NK7Z
> http://www.nk7z.net
>
> On 12/02/2017 10:07 AM, Joe wrote:
>> Yes, A Windom, that is coax fed into a 4:1 balun. Remember, I did
>> *NOT* have this issue with my Henry amplifier, even at over 2000
>> watts out. [Euro version of the amp!]
>>
>> Joe - W7RKN
>>
>> -----Original Message-----
>> From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of Dave Cole
>> (NK7Z)
>> Subject: Re: [RFI] RFI In My Shack
>>
>> Let me guess, you are using an Off Center fed dipole, or some sort of
>> asymmetrical antenna If not what is your transmit setup.
>>
>>
>> _______________________________________________
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>> http://lists.contesting.com/mailman/listinfo/rfi
>>
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