[Elecraft] Frequency shifts of KX3 when selecting CW?

[David Olean]

Hello Paul,

I think you mean 700 Hz (not kHz) for the frequency.  You can set the 
pitch of the CW note on your radio to fit your own ears. Older rigs just 
picked a freq and you had to live with it. My old Kenwood TS-820S used 
an 800 Hz CW offset as did my later Ten Tec OMNI V (a great cw radio). I 
don't have a KX3 but I suspect it is like my K3. If you are getting 
older and, ahem, more refined, you might notice that you like a lower CW 
note. That can be set to your preference, so when  you tune to 14150.0  
on SSB, the dial will indicate the zero beat frequency where the SSB 
sounds most natural.  Switching to CW will adjust the oscillator 
frequency to produce the correct offset beatnote that you selected and 
the actual display frequency will be offset by that amount. If your 
favorite CW note is 700 Hz, then the dial will indicate 14.1507 or 
possibly 14149.3 depending on CW or CW REVERSE buttons.

To make sure that you are correctly positioned for a QSO, you can hit 
the SPOT button. This will produce a tone that is equal to your CW note 
preference. You can easily compare the other station's CW note with the 
SPOT note and adjust your VFO until they sound the same. Human ears are 
good at comparing tone differences easily to 1 Hz or so. When it sounds 
equal, you are properly positioned on the exact same frequency as the 
station you are calling.

The new rigs are wonderful when compared to how things were in say 1960 
or so. There was a reason novices hung QSL cards on their wall. A 
contact was an almost rare occurrence! Now we quibble over a few Hz!

Dave K1WHS

On 7/27/2021 5:09 AM, Paul Jewell wrote:
> I have this behaviour on my Yaesu Ft-897. If I set the CW modulation 
> to 700 kHz, then it will move to 1.700 MHz. I thought this was 
> "normal" behaviour, and I was afraid to ask about it (relatively new 
> ham). I haven't tried to do the same on my KX3, but I will get it out 
> and try it.
>
> I don't think this is due to dropping it - I think it is intentional 
> to give you the correct tone for CW.
>
> Rgds.,
> Paul
>
> On 26/07/2021 19:05, Tom wrote:
>> Hi
>> I don't recall this happening before, but if I am tuned to a signal 
>> lets say
>> at 1.000 MHz in AM and then I switch to CW, the frequency display on the
>> radio changes to 1.600 MHz.
>> My K3 and KX2 do not do this.  Is there a setting somewhere?
>> I did drop my KX3 at one point recently so I am wondering if a button or
>> worse was pressed.
>> Thanks, Tom
>>
>>
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