RF in the shack!

[N8YX]

Have you confirmed that this problem does not happen with any other radio? If I'm reading your commentary correctly, two​ variables have been introduced into the equation.

[KA9MOT]

All 3 radios that have been run in this shack since I switched to DSL have caused this.

They are: Heathkit HW-101, Kenwood TS-570S and Ten Tec Scout. All three with feedline connected directly to the rig, or through switches. The Heathkit had some issues, so I blew it off as something we all could live with.

[KC2UGV]

Does it in fact knock out your wifi and DSL? Or, just the DSL, or just the Wifi?

I'm betting, that the wall wart for one of those two devices is crap. Ferrites on the power lead for whichever one (Or both) will solve it. What model is your wifi router?

[K7SGJ]

Steve, you you have anything else on the phone line like a security system, remote ringer, or something?

Also you might try just taking everything of the phone line except the router temporarily.

[KA9MOT]

It is a WiFi DSL router. All in one unit. The "Internet" light turns off but the unit does not reboot. After a minute or so, the "Internet" light comes back on and we are good to go until I key the rig. It is a Westell 7500

[KA9MOT]

Steve, you you have anything else on the phone line like a security system, remote ringer, or something?

Also you might try just taking everything of the phone line except the router temporarily.

Nothing. 2 phones and that is all. Phone calls are not disrupted. I'm not sure if that means anything at all. I will try removing the phones and see what happens.

[K7SGJ]

Corey has a point about the wall warts. Some, the type w/o the switching supply, just have a xfmr and a couple of diodes in them and do the filtering and regulation in the box. It's worth looking at.

[KC2UGV]

It is a WiFi DSL router. All in one unit. The "Internet" light turns off but the unit does not reboot. After a minute or so, the "Internet" light comes back on and we are good to go until I key the rig. It is a Westell 7500

Yeah. Put a bead on the wall wart power cable, near the router. I bet it solves the problem.

[W3WN]

I think you are correct. I just can't get my head around how RF is getting to it. That dummy load might be radiating a little, but not much.

You'd be surprised at how well a dummy load can radiate. I can still remember the night when N3WS checked into the WPA traffic net with an extremely weak signal, which had those of us in the K3CR shack scratching our heads (Walt lived a couple of miles from campus, so he should have been booming in). Turned out he was still on the Cantenna.

If the internet modem/device has a plastic case, and most of them do, there's very little to keep the RF out.

And try a ferrite bead or filter on the AC power cord. You'd be surprised at how well those can be as antennas sometimes.

[W3WN]

All 3 radios that have been run in this shack since I switched to DSL have caused this.

They are: Heathkit HW-101, Kenwood TS-570S and Ten Tec Scout. All three with feedline connected directly to the rig, or through switches. The Heathkit had some issues, so I blew it off as something we all could live with.

DSL? Hmmm.

The fact that it's happening with three different HF rigs from three different manufacturers & three different eras of construction leads me to rule out the transcievers themselves as the cause. They're the trigger (or your transmitting is) but not the cause. Also, the fact that this didn't happen before you switched to DSL also leads me to believe it's not the antenna or the cable. So we've narrowed it down to the DSL box.

Keep in mind that the DSL signal is coming in on unshielded twisted pairs. Something in the system is acting like enough of an antenna to funnel in enough RF to knock the DSL modem out. A ferrite choke on the incoming phone line would definitely help.