[Elecraft] K3 60-Meter Dial Display Frequencies

[iain macdonnell - N6ML]

On Sun, Jun 22, 2014 at 2:43 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:
> You did not specify the mode, but I can answer for any mode.

Actually he specified "USB and CW" (twice)


> For SSB, take the FCC specified center frequencies, and subtract 1.5 kHz for
> the USB carrier frequency.
> For CW and narrowband data modes, the Elecraft display will be at the
> specified center frequencies.
>
> For SSB, the K2, K3 and KX3 display the suppressed carrier frequency, and
> the regulations require that the USB signal be centered on the channel -
> subtracting 1.5 kHz will provide that centering.
> For CW and soundcard data modes, Elecraft gear displays the transmit carrier
> frequency, and that should be the channel center.

Err, no - (at least on the K3) in "DATA A" submode, which would
typically be used for soundcard data modes, the dial frequency is that
of the suppressed carrier for USB (or LSB, if REV is selected), so one
method would be to use the USB dial frequency (channel center minus
1500Hz) and use (only) a 1500Hz offset (on the waterfall) in the
digital mode software.

Only for the sub-modes ending with 'D' would it be appropriate to use
the channel center frequency. Actually for FSK, the dial will show the
mark frequency, so to be completely centered in the channel, you
probably should offset by half of the shift (e.g. 85Hz), but I doubt
you'd get cited for being 85Hz off.

Anyway, to answer the original question; the channel frequencies for
CW and USB are listed at:

http://www.arrl.org/news/new-60-meter-privileges-now-in-effect

and should be used exactly as listed there for CW and USB modes on the K3.

73,

    ~iain / N6ML




> On 6/22/2014 5:32 PM, Bob Myers wrote:
>>
>> To our K3 60-Meter Operators…
>>
>> Can someone please give me a list of dial display frequencies used with a
>> K3 for USB and CW on 60 Meters, all five Channels?
>>
>> I’ve seen much of the boilerplate information around talking about carrier
>> vs dial frequency but some of it is conflicting.
>>
>> So, I was hoping an active K3 60-Meter operator using both USB and CW can
>> tell me what his/her K3 dial displays for frequency when one is dead on the
>> right frequency for each Channel and Mode (USB & CW).
>>
>>
>
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