[Elecraft] P3 Not Zeroed

[Kevin, N4TT]

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:
>
> First make sure the radio is correct on all WWV frequencies.   I use CW
> mode and Auto Spot.  That will get to within 2 Hz or better. Adjust the Ref
> freq to calibrate.
>
> Then you can calibrate the P3 to the radio.
>
> No tuning or listening for zero beat required.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
> On Jul 23, 2019, at 9:54 AM, Kevin, N4TT <kkinderen at gmail.com> wrote:
>
> Hi Jim:
>
> I thought I had the right adjustment on the P3 but it seems global. I can't
> figure out why WWV can be spot on and then another signal off. I can't even
> be sure if it is the radio or the P3 (or me) at this point. I'll keep
> digging.
>
> Kev
>
>
>
> On Tue, Jul 23, 2019 at 3:57 AM Jim Brown <jim at audiosystemsgroup.com>
> wrote:
>
> It's been a while since I looked at the manuals for my K3 and P3, but I
> do recall that there are calibration procedures for both.
>
> 73, Jim K9YC
>
> On 7/22/2019 9:28 PM, Kevin, N4TT wrote:
> I noticed my P3 doesn't seem to be zeroed with the K3s. When I tune in a
>
> CW
>
> signal with a 600 Hz pitch the P3 is off by 71 Hz. Not much but, I
> expected  - zero.
>
> In AM - WWV at 5 MHz the P3 seems spot on.
>
>
>
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