[Elecraft] k2 spurious

[carlos popelier]

hi, i see 2 spurious left and right from the 3,5mhz main carrier, output 10w,
on 2,1 mhz and 4,9 mhz  -40 and -38 dbm with -30dbm attenuation
i wonder i anyone could tell me the correct level for the attenuation
and maybe why this signals are there, not so simple as i stated of
course,and what is the purpose of the binocular toroid in the power
amp section.
carlos on6cn

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mvg carlos popelier
regards carlos popelier