Fldigi and signallink question interfaced to KX3

[Terry]

I have a KX3 connected to a Signalink and Fldigi.  It seems to work fine for
all the digital modes.  I can use it to decode CW, but have never sent CW.
I clicked on the CQ button and all that happened was that my transmitter
went into transmit mode, but nothing was transmitted.  If I  put the KX3 in
LSB it would transmit cw fine, but was always off frequency by the amount of
my sidetone.  

 

Will fldigi send CW correctly in cw mode on the KX3?  If so, what am I doing
wrong.

 

Thanks,

 

Terry

 

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[Don Wilhelm]

sorry about the blank response.  It is late here and the fingers do not
work well.

Fldigi uses audio tones for keying, and you need to be in SSB mode
(typically USB or DATA A) to transmit on the proper frequency - CW
included - but I would expect twice the sidetone pitch.
Use DATA A mode when trying to send CW via the Fldigi CW mode.

CW is "just another digital mode" although one that can be decoded by
the human brain for those who know morse.  It uses audio tones to send
CW, do the carrier frequency USB frequency will be the transmit
frequency plus the frequency for the sidetone in Fldigi.

73,
Don W3FPR

On 6/29/2017 11:26 PM, Terry Brown wrote:
> I have a KX3 connected to a Signalink and Fldigi.  It seems to work fine for
> all the digital modes.  I can use it to decode CW, but have never sent CW.
> I clicked on the CQ button and all that happened was that my transmitter
> went into transmit mode, but nothing was transmitted.  If I  put the KX3 in
> LSB it would transmit cw fine, but was always off frequency by the amount of
> my sidetone.
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[Richard Ferch-2]

In order to send CW in CW mode, the KX3, like any other amateur radio
transceiver, needs an on-off keying input to its CW key jack. In CW mode,
amateur transceivers do not respond to audio input.

fldigi's primary method of sending CW is to produce an audio tone from a
sound card (such as your SignaLink). This cannot be used directly with a
rig in CW mode; the rig has to be in SSB. In SSB the rig's dial frequency
will be off by the sidetone frequency, as you have noticed, but the
frequency displayed and logged in fldigi should be correct if the program
is configured correctly.

There is a circuit in the fldigi documentation for converting fldigi's
"QSK" signal (an audio signal on the right channel of the sound card) to an
on-off keying signal - see <
http://www.w1hkj.com/FldigiHelp/cw_keying_page.html>. The SignaLink is a
single-channel sound card (left channel only) and does not support the
right channel, but fldigi does have a means for switching the two channels
- perhaps this could be made to work. Someone on this group may have done
this and be able to advise you whether it can be done successfully.

Another option is a K1EL Winkeyer (<http://k1el.tripod.com/WKUSBX.html>).
Current versions of fldigi support the Winkeyer, which provides an on-off
keying signal that transceivers like the KX3 can use in CW mode. See <
http://www.w1hkj.com/FldigiHelp/cw_winkeyer_page.html> for configuration
information on using a Winkeyer with fldigi.

73,
Rich VE3KI


N7TB wrote:

Will fldigi send CW correctly in cw mode on the KX3?  If so, what am I
doing wrong.
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[Elecraft mailing list]

This is a repeat of an email that I sent to Terry and the list, and which didn't make it to the list last week, so am trying again after some changes have made by the powers that be.

Terry,

It appears that Fldigi uses audio keying rather than real CW. So you will use the same setup that you have for other Digital modes within Fldigi and your Signalink.

Details are at:

http://www.w1hkj.com/FldigiHelp-3.21/html/cw_configuration_page.html

73 from David GM4JJJ

> On 30 Jun 2017, at 04:26, Terry Brown <[hidden email]> wrote:
>
> I have a KX3 connected to a Signalink and Fldigi.  It seems to work fine for
> all the digital modes.  I can use it to decode CW, but have never sent CW.
> I clicked on the CQ button and all that happened was that my transmitter
> went into transmit mode, but nothing was transmitted.  If I  put the KX3 in
> LSB it would transmit cw fine, but was always off frequency by the amount of
> my sidetone.  
>
>
>
> Will fldigi send CW correctly in cw mode on the KX3?  If so, what am I doing
> wrong.
>
>
>
> Thanks,
>
>
>
> Terry
>
>
>
> ______________________________________________________________
> 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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