Hi Vidi,
This is normal.
Most receivers have out-of-band receive responses that are created by
high-order harmonics of the VFO, BFO, and other signal sources. The K3
is no exception, since it's a down-conversion superhet using high-
level injection. Generally these responses will be inaudible because
they never appear right at the I.F. (~8.215 MHz in the case of the K3).
The P3, which gets its signal *before* the crystal filters, can
display a much wider I.F. bandwidth. So some receive responses you'd
never hear may show up in the P3's passband. In theory, we could map
these out at the P3, but it's a complex equation involving the
frequencies of the signal sources, crystal filter center frequencies,
selected sideband, passband center pitch, etc.
73,
Wayne
N6KR
Vidi wrote:
> I noticed that on 17.6792mHz there is a strange ghost signal visible
> on the P3. As I tune over it, it moves in the opposite direction
> to VFO dialing direction! I turned everything off in the shack and
> also selected the dummy load but it is still there. This ghost
> signal is not audible on the K3 and only shows up as a 'signal on
> the P3. I wonder if it is only my P3 that does this.
>
> Vidi - ZS1EL
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