[Elecraft] K1 question RFI?

[john Wiener]

I am on vacation and using my K1.  I don't have much in the way of tools and no test equipment.  
My model ( serial 02676 ) has a 4 band module.  

On 40 30 and 20M bands  I get a spike interference of about 4/sec in the first 15 KHz of the bands.  
This does not occur on 15M.  It could be an RFI source but thought I'd ask.  
Odd to be on the first 15 KHz of 3 out of 4 bands

Advice appreciated

73

John
AB8O