[Elecraft] K1 internal signal generator?

[Mike Morrow]

I wrote:

> The K1 receiver operates on lower sideband for all bands.  If you
> have properly set your CW offset to, say, 600 Hz, then your
> transmitter frequency will be 0.6 kHz lower than your receiver
> frequency.   Most hams want the frequency display to show
> transmitter frequency rather than receiver frequency.  In that
> case, when you are zero-beat with a signal at, say, 6999.3 kHz,
> you'd want the LCD display to show 6999.3 - 0.6 = 6998.7 kHz,
> which will be the frequency transmitted when key-down.


Don wrote:

>The display frequency indicated above is not quite correct. 
>When zero-beat with a signal (meaning to hear the signal at the
>sidetone pitch), the receiver display should indicate the frequency
>of the carrier. 

>Yes it is true that under these conditions, the 
>actual receiver frequency is offset by 600 Hz, but the frequency
>display should show 6999.3 (the center of the receiver passband
>will be 6999.9 kHz)

Hi Don,

I agree with all you say if I want my LCD to display the **receiver** frequency,  But I think you missed my main point:  I want my LCD to display the **transmitter** frequency, since from a standoint of operating close to band lower limits, the transmitter frequency is what is subject to regulatory requirements.

So, for a LSB receiver with a CW transmitter offset, the transmitter frequency will be *below* the receiver's zero-beat frequency by the amount of offset.  For example, I use a 600 Hz offset on my K1.  If I am zero-beat with 10000 kHz WWV, my K1 display actually shows 9999.4 kHz, since that is the frequency that my K1 transmitter will emit if I key it.

>Yes it is true that under these conditions, the 
>actual receiver frequency is offset by 600 Hz, but the frequency
>display should show 6999.3 (the center of the receiver passband
>will be 6999.9 kHz)

I define actual receiver frequency as the zero-beat frequency, and I define actual transmitter frequency as that which would be determined by a frequency counter.

73,
Mike / KK5F