K3 - Minor question

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K3 - Minor question

k6dgw
Just noticed this tonight.

The No Cal NTS net is on 3533.000  As I tuned the rx up, at that exact
frequency, the background noise changed ... I sounded like some of the
highs went away.  Continuing up in freq, at 3533.100, it reverted to
what it sounds like below 3533.000  There is nothing on the P3 that
looks different.  P3 is in fixed tune mode.  FW version is 4.39.

Just curious, it's not a problem.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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Re: K3 - Minor question

Vic Rosenthal
Have you used the birdie removal feature? It has that effect.

On 4/4/2012 8:19 PM, Fred Jensen wrote:

> Just noticed this tonight.
>
> The No Cal NTS net is on 3533.000  As I tuned the rx up, at that exact
> frequency, the background noise changed ... I sounded like some of the
> highs went away.  Continuing up in freq, at 3533.100, it reverted to
> what it sounds like below 3533.000  There is nothing on the P3 that
> looks different.  P3 is in fixed tune mode.  FW version is 4.39.
>
> Just curious, it's not a problem.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2012 Cal QSO Party 6-7 Oct 2012
> - www.cqp.org


--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: K3 - Minor question

Carl W Clawson
In reply to this post by k6dgw
Fred, did you happen to tune across a frequency where you had earlier
removed a birdie with SIG RMV? That causes the passband to jog a bit and you
can hear it in the sound of the noise, especially at narrow bandwidths. Tune
across it again slowly and watch the P3 carefully. Sometimes you can see the
birdie come flying across the P3 at you and "tunnel" through your passband.
It's pretty cool when you see it.

73, Carl WS7L

> -----Original Message-----
> The No Cal NTS net is on 3533.000  As I tuned the rx up, at
> that exact
> frequency, the background noise changed ... I sounded like
> some of the
> highs went away.  Continuing up in freq, at 3533.100, it reverted to
> what it sounds like below 3533.000  There is nothing on the P3 that
> looks different.  P3 is in fixed tune mode.  FW version is 4.39.
>
> Just curious, it's not a problem.
>
> 73,
>
> Fred K6DGW

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Re: K3 - Minor question

k6dgw
In reply to this post by Vic Rosenthal
On 4/4/2012 10:27 PM, Vic K2VCO wrote:
> Have you used the birdie removal feature? It has that effect.

No, at least not intentionally or even knowingly.  Is there a "birdie
un-removal" feature?

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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Re: K3 - Minor question

k6dgw
In reply to this post by k6dgw
On 4/4/2012 9:10 PM, Hisashi T Fujinaka wrote:
> Do you have a DSP? Is it noise that's different?

It's a K3, permanent DSP.  And yes, it's on background noise.  I can't
tell any difference on the signals, but then, this *is* CW, not much to
change on my end.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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Re: K3 - Minor question

k6dgw
In reply to this post by Carl W Clawson
So far as I know, I've never removed a birdie.  I don't know how to do
it, so if I did, it was unintentional and accidental ... not totally
unheard of for me. :-)

I'm usually a sucker for anything that someone describes as "pretty
cool" but so far I haven't seen anything like that on the P3 :-(

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

On 4/4/2012 10:34 PM, Carl Clawson wrote:

> Fred, did you happen to tune across a frequency where you had earlier
> removed a birdie with SIG RMV? That causes the passband to jog a bit and you
> can hear it in the sound of the noise, especially at narrow bandwidths. Tune
> across it again slowly and watch the P3 carefully. Sometimes you can see the
> birdie come flying across the P3 at you and "tunnel" through your passband.
> It's pretty cool when you see it.
>
> 73, Carl WS7L
>
>> -----Original Message-----
>> The No Cal NTS net is on 3533.000  As I tuned the rx up, at
>> that exact
>> frequency, the background noise changed ... I sounded like
>> some of the
>> highs went away.  Continuing up in freq, at 3533.100, it reverted to
>> what it sounds like below 3533.000  There is nothing on the P3 that
>> looks different.  P3 is in fixed tune mode.  FW version is 4.39.
>>
>> Just curious, it's not a problem.
>>
>> 73,
>>
>> Fred K6DGW
>
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>
>
>
> -----
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>
>


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Re: K3 - Minor question

Vic Rosenthal
In reply to this post by k6dgw
Yes. To undo any birdie removal for the band you are on, select SIG RMV in the menu and
then tap CLR.

On 4/5/2012 4:18 PM, Fred Jensen wrote:

> On 4/4/2012 10:27 PM, Vic K2VCO wrote:
>> Have you used the birdie removal feature? It has that effect.
>
> No, at least not intentionally or even knowingly.  Is there a "birdie
> un-removal" feature?
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2012 Cal QSO Party 6-7 Oct 2012
> - www.cqp.org
>
> ______________________________________________________________
> 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

--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
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Re: K3 - Minor question

k6dgw
On 4/5/2012 4:53 PM, Vic K2VCO wrote:
> Yes. To undo any birdie removal for the band you are on, select SIG RMV in the menu and
> then tap CLR.

OK, truly no idea how this got there, but in that 100 Hz segment,
Shft=-2.  I set it to zero, all is well.  I may not update my firmware
again, it already seems to think faster than I do :-)

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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