[Elecraft] OT- Self testing GFCI RFI?

[brian]

I had to replace an GFCI.

All the types at Lowes and Home Depot (both arc fault and not) had a 
self test feature.

One brand said it tested every 3 seconds.  The other was non-specific 
even in the attached flier.

Wonder if the 3 second testing type could be a source of RFI?

I bought a Leviton non arc fault one that was non-specific on the 
frequency of test.  It seems RFI quiet.

73 de Brian/K3KO