Network Interferance

Andrew Billingham

It seems my network switch is interfering with my radio. I have changed all the cables to Cat 6 and still no joy. Anyone else had this problem and if so how did you get around it.

WK2Y

Steve KD2OM

Andrew Billingham

Hi Bob, I have a separate switch off the router as my shack is upstairs.  I know its coming from there as I'm getting the interference on my Kenwood ts 990 

WK2Y

Do you have a ground strap between the switch and the rig?  Might help.

Andrew Billingham

The only problem I would have is I’m on the second floor.

Steve Blankinship AG4SO

WK2Y

Roger Hartel

I have a similar issue with interference every 60Khz across all bands. Ferrite chokes on all of the cables in and out of the switch will help reduce the level. I have heard that a 100 mhz switch might be quieter than a 1gb switch but I can't find one.

Andrew Billingham

Hi Rodger. Yep it’s the same here. I think some filters on the main feed to the switch would help. but I caiswem to find anyy

Roger Hartel

I put ferrites on all cables at the switch and at the destination. I live in a 2 story home with a basement, my antenna is in the attic, the 6600 is in the basement. The router/switch is on floor 2, there is a switch on the first floor and one on the basement. The first floor switch is the biggest part of the problem. I made an RF sniffer out of a small toroid core with 10 turns of wire connected to a small $25 hand held scope. I used that to examine the switches, cables and power blocks all around the house. That enabled me to determine the noise sources and the freq. Then I picked ferrites. Many filters try to prevent rf from disturbing the Ethernet, my goal was to **** the 60Khz coming out of the switch.

Stan VA7NF