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I am a radio ham and am trying to trace rf interference, I know the sky q box is giving me issues and im waiting for sky to get back to me but after switching sky q off the TP - LINK TL- SF1005D is also causing RF interference, im using ordinary cat5 cables and they are short runs linking a few devices, max length each is 1 metre.

I have turned all devices off in the house apart from the TP - LINK TL- SF1005D and this is the interference on 145mhz which is a main band.
Once i turn off the TP - LINK TL- SF1005D the interference disappears

Do you think getting shielded cables would help, if so which ones?

Here is the screen shot of interference.

I have all mains cables shielded with clip on ferrites