[Elecraft] P3 Not Zeroed

[Gwen Patton]

I thought an oscilkator was one of those green lizards with lots of teeth
that live in the swamp....

On Tue, Jul 23, 2019 at 4:25 PM Nr4c <nr4c at widomaker.com> wrote:

> For CW, if radio is set to 7.040 then it will transmit a carrier on 7.040.
> If you tune to a station transmitting on 7.030 then your radio should also
> be at 7.039 and the P3 would show a spike on 7.030. The pitch of the audio
> is done in the receiver so you can make out the code. Otherwise you wound
> only hear “tch tch tccch” for a “U”.
>
> In the past an adjustable “BFO” or Beat Freeuency Oscilkator was used to
> beat against the incoming carrier to provide an audio so that you could
> hear the code. This was often needed due to you hardly ever worked someone
> on same frequency as your crystal. Once you found someone coming back to
> you, a turn of the BFO knob could provide a usable audio signal.
>
> The TX Sidetone is there for the same reason.
>
>
>
> Sent from my iPhone
> ...nr4c. bill
>
>
> > On Jul 23, 2019, at 2:31 PM, Kevin, N4TT <kkinderen at gmail.com> wrote:
> >
> > Maybe that's the basic question...
> >
> > If I tune the radio to 7.035 to set a CW signal for a pitch of 600 Hz (as
> > set using the PITCH function) what should I expect to see on the P3?
> >
> > 1) The P3 shows 7.035 and the CW signal is offset from the center by 600
> Hz?
> >
> > 2) The P3 shows 7.035 and compensates for the pitch placing the CW signal
> > directly under the cursor?
> >
> > 3) The P3 shows 7.035600 placing the CW signal directly under the cursor?
> >
> > I expect #2.
> >
> > I'll be trying out more this evening.
> >
> > Kev
> >
> >> On Tue, Jul 23, 2019 at 12:47 PM Alan Bloom <n1al at sonic.net> wrote:
> >>
> >> Good advice.
> >>
> >>
> >> Also be aware that the center frequency differs depending on mode.  For
> >> example, it is the supressed carrier frequency on SSB but is offset by
> >> typically 600 Hz on CW.
> >>
> >>
> >> I like to use AM mode for frequeny calibration.  After doing a frequency
> >> calibration on the K3, tune to a signal on the AM broadcast band and
> adjust
> >> the P3 frequency calibration.  (MENU:RefCal.  Cal procedurre is on page
> 39
> >> of the manual)  As I recall, AM broadcast stations are required to be
> >> within 20 Hz of nominal frequency but are typically much closer than
> that.
> >>
> >>
> >>
> >> Alan N1AL
> >>
> >>
> >> On 2019-07-23 08:20, Bob McGraw K4TAX wrote:
>
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