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PX3 Signal While Transmitting

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Roger Meadows-2

PX3 Signal While Transmitting

When I'm sending code, I noticed that there is a signal showing up just to
the right of the frequency I'm on. It goes away when I'm done
transmitting. Here is an example ... https://youtu.be/zQ_VWCmKvOw

Thanks for your input.

73,
Roger Meadows
AE4RM
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Richard Thorne-4

Re: PX3 Signal While Transmitting

I've noticed it as well on a KX3/PX3 new to me (ie bought used) combo.

If you get an answer let me know.

Rich - N5ZC

On 8/3/2017 10:53 AM, Roger Meadows wrote:

> When I'm sending code, I noticed that there is a signal showing up just to
> the right of the frequency I'm on. It goes away when I'm done
> transmitting. Here is an example ... https://youtu.be/zQ_VWCmKvOw
>
> Thanks for your input.
>
> 73,
> Roger Meadows
> AE4RM
> ______________________________________________________________
> 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
> Message delivered to [hidden email]
>

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Elecraft mailing list

Re: PX3 Signal While Transmitting

In reply to this post by Roger Meadows-2

I don't have my PX3 beside me now, but I recall that the PX3 acts differently between using an external keyer and the internal keyer of the KX3, one freezes the PX3 all the time you are transmitting in semi break in, the other doesn't.

The other thing that sometimes causes spurious signals to appear on the PX3 is if the PX3 NB level is too high (not the KX3 NB level).

73 from David GM4JJJ

> On 3 Aug 2017, at 16:53, Roger Meadows <[hidden email]> wrote:
>
> When I'm sending code, I noticed that there is a signal showing up just to
> the right of the frequency I'm on. It goes away when I'm done
> transmitting. Here is an example ... https://youtu.be/zQ_VWCmKvOw
>
> Thanks for your input.
>
> 73,
> Roger Meadows
> AE4RM
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

Roger Meadows-2

Re: PX3 Signal While Transmitting

Noise blankers are off and it is an external key.
On Thu, Aug 3, 2017 at 12:46 PM David Anderson <[hidden email]> wrote:

> I don't have my PX3 beside me now, but I recall that the PX3 acts
> differently between using an external keyer and the internal keyer of the
> KX3, one freezes the PX3 all the time you are transmitting in semi break
> in, the other doesn't.
>
> The other thing that sometimes causes spurious signals to appear on the
> PX3 is if the PX3 NB level is too high (not the KX3 NB level).
>
> 73 from David GM4JJJ
>
> > On 3 Aug 2017, at 16:53, Roger Meadows <[hidden email]> wrote:
> >
> > When I'm sending code, I noticed that there is a signal showing up just
> to
> > the right of the frequency I'm on. It goes away when I'm done
> > transmitting. Here is an example ... https://youtu.be/zQ_VWCmKvOw
> >
> > Thanks for your input.
> >
> > 73,
> > Roger Meadows
> > AE4RM
> > ______________________________________________________________
> > 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
> > Message delivered to [hidden email]
>
>

Elecraft mailing list

Re: PX3 Signal While Transmitting

Try the internal keyer, just as a test, I think I recall that then the PX3 may freeze totally during semi break in keying. (I never used full break in because I was using transverters with sequenced relays).

I recall being confused as to what was different one day when I saw what you are seeing and it was because I had changed from external to internal keyer or vice versa.

73 from David GM4JJJ

> On 3 Aug 2017, at 17:54, Roger Meadows <[hidden email]> wrote:
>
> Noise blankers are off and it is an external key.
>> On Thu, Aug 3, 2017 at 12:46 PM David Anderson <[hidden email]> wrote:
>> I don't have my PX3 beside me now, but I recall that the PX3 acts differently between using an external keyer and the internal keyer of the KX3, one freezes the PX3 all the time you are transmitting in semi break in, the other doesn't.
>>
>> The other thing that sometimes causes spurious signals to appear on the PX3 is if the PX3 NB level is too high (not the KX3 NB level).
>>
>> 73 from David GM4JJJ
>>
>> > On 3 Aug 2017, at 16:53, Roger Meadows <[hidden email]> wrote:
>> >
>> > When I'm sending code, I noticed that there is a signal showing up just to
>> > the right of the frequency I'm on. It goes away when I'm done
>> > transmitting. Here is an example ... https://youtu.be/zQ_VWCmKvOw
>> >
>> > Thanks for your input.
>> >
>> > 73,
>> > Roger Meadows
>> > AE4RM
>> > ______________________________________________________________
>> > 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
>> > Message delivered to [hidden email]
>>