Metal to metal noise on 2.4 mhz
2.4GHz seems to be pretty resistant to "noise" that affected 40mHz 35MHz and 27MHz HOWEVER its a good idea not to push your luck and try to minimise such effects.
"that's not a bug its just an undocumented creature."
Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)