P3 Manual Calibration procedure question

[Chester Alderman]

I'm sure this has been discussed before but if so, I have missed it.

On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the
heading of Amplitude Calibration the forth button down, it states to set the
signal generator for 7040  kHz and the following button below says to set
the transceiver to approximately 7015 kHz so the signal is centered on the
right half of the display. Is this a typo? If not, can someone please
explain the purpose of doing this?

Thanks and 73

Tom - W4BQF


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[N5GE]

Tom,

The instructions are correct.

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member


On Wed, 17 Aug 2011 17:30:10 -0400, "Tommy Alderman" <[hidden email]>
wrote:

>I'm sure this has been discussed before but if so, I have missed it.
>
>On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the
>heading of Amplitude Calibration the forth button down, it states to set the
>signal generator for 7040  kHz and the following button below says to set
>the transceiver to approximately 7015 kHz so the signal is centered on the
>right half of the display. Is this a typo? If not, can someone please
>explain the purpose of doing this?
>
>Thanks and 73
>
>Tom - W4BQF
>

[snip]

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[Alan Bloom]

There is a small variation in IF output level from the K3 for signals
that are within the passband of the K3 crystal filter.  (The crystal
filter is after the IF OUT tap-off point but the input impedance of some
crystal filters can load down the signal level a little.)  De-tuning the
calibration signal avoids the error.

Alan N1AL


On Wed, 2011-08-17 at 17:30 -0400, Tommy Alderman wrote:

> I'm sure this has been discussed before but if so, I have missed it.
>
> On page 24 of the P3 Owner's Manual, Rev. B, March 29, 2011, under the
> heading of Amplitude Calibration the forth button down, it states to set the
> signal generator for 7040  kHz and the following button below says to set
> the transceiver to approximately 7015 kHz so the signal is centered on the
> right half of the display. Is this a typo? If not, can someone please
> explain the purpose of doing this?
>
> Thanks and 73
>
> Tom - W4BQF
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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