[Elecraft] K2 -15Mtr birdies?

[Ron VE8RT]

I hadn't noticed this before as I don't normally operate in this part  
of 15 metres.   As I tuned across 15 metres I noticed a couple of  
birdies, switching between the antenna and dummy load didn't make  
them go away.  They're weak, at the bottom of the S meter, but I  
don't know if this is normal, or if there is something I could do  
about them.  On CW mode the first is at 21028.63 KHz and the tone  
changes rapidly, maybe 100Hz or more for every 10Hz change on the  
tuning.  The second one is at around 21036.20 KHz.  Is this normal,  
and is there a fix for it?  Maybe there are others on other bands  
that I'm not yet aware of.

Ron VE8RT ve8rt at xplornet.com
Yellowknife, NT, Canada
62 26.765N  114 22.503W  Grid Square DP22tk
"Who are these that fly as a cloud, and as doves to their window?"   
Is 60:8