[Elecraft] KX3 IQ Outputs - What to expect?

John kx4o at hamradio.me
Mon Mar 16 23:52:50 EDT 2015


Thanks Peter.

I do see the 90 degree phase difference and how it changes if I move 
above or below the test frequency.  However the amplitude of just one, 
the ring conductor on the connector, decreases with increasing delta 
frequency.  The amplitude of the tip remains steady regardless of the 
delta frequency.

I assume this isn't what I should be seeing.  Now I need to figure out 
me next move as this seems to not be what the PX3 wants.

Does anyone know a reason the I and Q might be different amplitudes for 
the same signal?

Thanks.
John, kx4o

On 3/16/2015 8:38 PM, Peter Lambert wrote:
> Hi John,
>
> In this situation the amplitude of both the I and Q channels should be the
> same and they should always be 90 degrees out of phase.
>
> Peter VK4JD
>
>



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