IC cable to address RF coming from nearby FM station

Canare L-4E6S Star Quad Balanced Microphone Cable | XLR Male 3-Pin to XLR Female 3-Pin | Neutrik Gold | 2 Feet | Black | Assembled in The USA

https://a.co/d/2o6r9Bj

Or Google Mogami cable. 

That's a good thought.

@converge  Did you troubleshoot the problem to be the cable? If not, it could be a component, any other cable, power supply.

What components does the balanced cable connect to?

I agree something is acting like an antenna. How long is the cable run from tonearm to phonostage and where is this unit located? Is it earth grounded to the buss bar in your service panel as the rest of your system should be?

Phonostages can be the root cause of RFI. Changing phono cables can sometimes cure this problem, relocating the unit may also be a solution.