K2 Monitoring outgoing PSK31 Signal

[KM4VX]

I have searched the archives but cannot find anything concerning how to monitor the outgoing PSK31 signal from the K2. In the PRO3 one just pushes the "Monitor" button. I am using the SignaLink USB interface with Digipan software at 5 watts. I would like to check my outgoing audio. Thanks. Ron

[Julian, G4ILO]

KM4VX wrote

I have searched the archives but cannot find anything concerning how to monitor the outgoing PSK31 signal from the K2. In the PRO3 one just pushes the "Monitor" button. I am using the SignaLink USB interface with Digipan software at 5 watts. I would like to check my outgoing audio. Thanks. Ron

There is no audio monitor on the K2. In any case, it is really the trasnmitted signal you need to monitor to check your IMD. If you have no more than one bar of ALC showing in "r" mode then the IMD should be very good at 5 watts.

There used to be a very useful tool called the IMD Meter designed by KK7UQ which you could buy from US Interface. Sadly it appears to be no longer available since the owner of US Interface became a SK. You can still find information about it if you use Google. If anyone knows where you can still get these things I'd like to know, because I have one and wrote about it on my website, and I'm often asked where you can get them from.

[dwines]

I believe the IMD meter is still available here:
http://usinterface.com/naviusa_002.htm

Don,
K5DW

Julian, G4ILO wrote:

> There used to be a very useful tool called the IMD Meter designed by
> KK7UQ
> which you could buy from US Interface. Sadly it appears to be no longer
> available since the owner of US Interface became a SK. You can still
> find
> information about it if you use Google. If anyone knows where you can
> still
> get these things I'd like to know, because I have one and wrote about
> it on
> my website, and I'm often asked where you can get them from.

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[Mike Harris]

G'day,

Just received and installed the KXV3A Upgrade.  Oddly you receive
the whole KXV3A package including PCB, connector panel, TMP cable
and hardware.  For an upgrade only the PCB is required.

When reinstalling the KIO3 assembly the TMP cable to the KXV3A has
to fit in a notch in the KIO3 main board adjacent to the side panel.
This is a pretty tight fit and I find it a lot easier to do by
removing the rearmost side panel screws so that the panel can be
sprung out a little.

Now to put the old KXV3 with RF protection mod into the post to W6.

Regards,

Mike VP8NO


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[Don Wilhelm-4]

Ron,

The K2 has no provision for aural monitoring of digital mode audio.  You
can get that from your computer speakers if you want to hear it.  BUT -
that is only for inbound audio, and has nothing to do with the
transmitted signal.  The advice of others to use an IMD meter is a good one.

If you wish tohear the received audio in the speaker while sending audio
to the compter soundcard, there is a way,  and it involves adding a
fixed audio output to the K2 that can be used to drive the soundcard -
that leaves the AF gain control as normal while providing a fixed audio
level to the soundcard.  See my website www.w3fpr.com for more information.
Tom Hammond is currently providing board for this fixed audio addition
to the K2, but his supply is running short - for information about the
boards, go to www.n0ss.net and look in the K2 related file section.

73,
Don W3FPR

KM4VX wrote:
> I have searched the archives but cannot find anything concerning how to
> monitor the outgoing PSK31 signal from the K2. In the PRO3 one just pushes
> the "Monitor" button. I am using the SignaLink USB interface with Digipan
> software at 5 watts. I would like to check my outgoing audio. Thanks. Ron
>  
>  
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[KM4VX]

I appreciate the helpful responses. My objective was to hear the audio output of the PSK31 signal from the K2. That appears to be impossible and probably unnecessary provided the ALC reading is correct. I believe my ALC was a bit high, and after lowering it to just above one bar on the meter I am able to work DX stations throughout Europe and into Latin America with 5 watts using a decent vertical. I don't need the IMD meter but will keep the recommendations on file. QRP is a real challenge with PSK31; otherwise I think I would use E-Mail. Nice that there is something in this hobby for everyone.

KM4VX wrote

I have searched the archives but cannot find anything concerning how to monitor the outgoing PSK31 signal from the K2. In the PRO3 one just pushes the "Monitor" button. I am using the SignaLink USB interface with Digipan software at 5 watts. I would like to check my outgoing audio. Thanks. Ron

[Jim KJ3N]

Which will lead you to me!

I've been building the KK7UQ IMD meter for US Interface for the last several years. Clint signed over all rights to the product to me 2-3 years ago.

Jim KJ3N

Don Wines-2 wrote

I believe the IMD meter is still available here:
http://usinterface.com/naviusa_002.htm

Don,
K5DW

Julian, G4ILO wrote:

> There used to be a very useful tool called the IMD Meter designed by
> KK7UQ
> which you could buy from US Interface. Sadly it appears to be no longer
> available since the owner of US Interface became a SK. You can still
> find
> information about it if you use Google. If anyone knows where you can
> still
> get these things I'd like to know, because I have one and wrote about
> it on
> my website, and I'm often asked where you can get them from.



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