Re: [Elecraft] KX2 80m LSB bug

[Bob N3MNT]

If you hit tune after switching to 80M does it still appear to exhibit this
issue?




--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KX2-80m-LSB-bug-tp7627954p7627962.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] KX2 80m LSB bug

[Irma Linas]

Thanks Wayne!
Calibration helped. Problem solved!
Greate rig!

73 de Linas LY2H

On 2017 kov. 13, pr at 18:30 Wayne Burdick  wrote:

> Hi Linas,
>
> I can't duplicate this problem on my KX2. I would suggest re-doing the
> transmit gain calibration on 80 meters.
>
> Set mic gain to about 15-20 with the MH3, or about 30-50 with the internal
> mic.
>
> 73,
> Wayne
> N6KR
>
>
> On Mar 13, 2017, at 7:14 AM, Irma Linas  wrote:
>
> > Hello group,
> >
> > I am now a proud owner of the brand new KX2 which arrived few days ago
> > straight from CA. Being also a proud owner of an old and fully upgraded
> K3
> > I found this little rig very familliar to operate and navigate. Very
> lovely
> > package of all what you need on QRP, including the battery pack and the
> key
> > paddle! I am especially amased by the built-in microfone - it works very
> > nicely and I am re-descovering the SSB mode being mainly the CW op! The
> RX
> > audio quality  of SSB signals is outstandingly pleasant even with this
> > small speaker! The general sensitivity of the receiver though  seems a
> bit
> > too low compare to the K3 thus the preamp is needed most of time even
> with
> > good antennas. But that is no problem.
> >
> > A strange bug appears to live in the radio. It only related to 80m band
> LSB
> > mode. It is not possible to get the signal transmitted if you are on 80m
> on
> > power-up or if you come to 80m LSB from another band. Pushing Xmit or
> mics
> > PTT puts the rig into transmit mode but RF meter shows no output. If you
> > want to transmit, you have to change the mode into CW, transmit a dot or
> so
> > ( it always works on CW ok ) then change back to the LSB mode and then
> only
> > it starts transmitting your SSB signal out. The bug is NOT related with
> the
> > " RF in the shack" case, it is there with different antennas and the
> dummy.
> > The bug is permanently there and does not depend on battery supply,
> > voltage, etc. I have also tried to reload the latest firmware , no
> change.
> > So I think it could be the firmware problem.
> >
> > Would be interesting to know if anybody else experiencing the same
> strange
> > effect?
> >
> > 72! de Linas LY2H
> > KX2 #1488
> > K3 #1568 S-upgraded
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to n...@elecraft.com
>
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] KX2 80m LSB bug

[Wayne Burdick]

Hi Linas,

I can't duplicate this problem on my KX2. I would suggest re-doing the transmit 
gain calibration on 80 meters. 

Set mic gain to about 15-20 with the MH3, or about 30-50 with the internal mic.

73,
Wayne
N6KR


On Mar 13, 2017, at 7:14 AM, Irma Linas  wrote:

> Hello group,
> 
> I am now a proud owner of the brand new KX2 which arrived few days ago
> straight from CA. Being also a proud owner of an old and fully upgraded K3
> I found this little rig very familliar to operate and navigate. Very lovely
> package of all what you need on QRP, including the battery pack and the key
> paddle! I am especially amased by the built-in microfone - it works very
> nicely and I am re-descovering the SSB mode being mainly the CW op! The RX
> audio quality  of SSB signals is outstandingly pleasant even with this
> small speaker! The general sensitivity of the receiver though  seems a bit
> too low compare to the K3 thus the preamp is needed most of time even with
> good antennas. But that is no problem.
> 
> A strange bug appears to live in the radio. It only related to 80m band LSB
> mode. It is not possible to get the signal transmitted if you are on 80m on
> power-up or if you come to 80m LSB from another band. Pushing Xmit or mics
> PTT puts the rig into transmit mode but RF meter shows no output. If you
> want to transmit, you have to change the mode into CW, transmit a dot or so
> ( it always works on CW ok ) then change back to the LSB mode and then only
> it starts transmitting your SSB signal out. The bug is NOT related with the
> " RF in the shack" case, it is there with different antennas and the dummy.
> The bug is permanently there and does not depend on battery supply,
> voltage, etc. I have also tried to reload the latest firmware , no change.
> So I think it could be the firmware problem.
> 
> Would be interesting to know if anybody else experiencing the same strange
> effect?
> 
> 72! de Linas LY2H
> KX2 #1488
> K3 #1568 S-upgraded
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n...@elecraft.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com