K3 PSK issue - How to?

[Buck - k4ia]

I am having a little trouble with  PSK.  The power output meter is not moving
above 1 bar.  I have  selected Line In in the MIC SEL menu.  I can hear the
PSK warble in the  monitor.  I can run up the Line In Gain to make the ALC
meter show 6 bars  but the Power meter still doesn't move.  Changing the Power
setting makes  no difference either.

In other rigs, I have left the Power setting at  100w and just fed the rig
enough audio to get my desired output.  That  doesn't seem to work either.

Any ideas?

Craig  "Buck"
k4ia
Fredericksburg, Virginia USA  




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[Buck - k4ia]

I was using UpperSB.  I tried the DATA A  mode with the same results.  I
didn't like the very narrow bandwidth the  DATA mode uses.

I am a little confused by the DATA mode selections.   I don't want to send
PSK via CW paddles or by FSK.  I am just trying to go  to/through the computer
soundcard.

Craig  "Buck"
k4ia
Fredericksburg, Virginia USA  




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[Matt Zilmer]

>I am having a little trouble with  PSK.  
<big snip>

Did you put the K3 in Data A mode?

You should be running mic gain so that ALC barely registers, or below.
Zero is Good.  Set the power however you want.

I included a previous summary of settings I've uesd that might help
out with this.

matt - WA6EGJ
K3 s/n 24

== stapled-on ==

Data MD:  Data A

TX line in setting:  20% of full scale.  The output is a laptop's
speaker jack and the setting reflects the playback volume set on the
laptop.

RX line out setting:  55% of full scale.  The input is the mic jack of
the laptop.

RX Filter:  shift it to 1 KHz Fc, and 200 to 400 Hz bandwidth.  Stir
as needed....

K3 Line In Gain:  set at 1 to 2.  This range seems fine, but it won't
help to go any higher than 4 or so.  IMD gets worse.

K3 Line Out Gain:  leave this at the default 30 setting.  It works
fine.

K3 Mic Source:  Select Line In.  Don't forget to put it back when you
return to voice modes.

PTT-Key:  I ran it DTR-Off, but you could also use RTS for keying.

Set up at the home QTH is as follows-
K3/10
MFJ-941 tuner
Long wire antenna - 130' long at 35' above ground.
Two stereo cables - 3.5mm to 3.5mm, both male
USB:  Elecraft KUSB.
Digipan 2.0 running on XP Pro, SP2.

I had a power setting of between 3 and 5 Watts.  With PSK31, that's
enough.


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[Julian, G4ILO]

On Dec 4, 2007 3:28 AM, Matt Zilmer <[hidden email]> wrote:

> == stapled-on ==
>
> Data MD:  Data A
>
> TX line in setting:  20% of full scale.  The output is a laptop's
> speaker jack and the setting reflects the playback volume set on the
> laptop.
>
> RX line out setting:  55% of full scale.  The input is the mic jack of
> the laptop.
>
> RX Filter:  shift it to 1 KHz Fc, and 200 to 400 Hz bandwidth.  Stir
> as needed....
>
> K3 Line In Gain:  set at 1 to 2.  This range seems fine, but it won't
> help to go any higher than 4 or so.  IMD gets worse.
>
> K3 Line Out Gain:  leave this at the default 30 setting.  It works
> fine.
>
> K3 Mic Source:  Select Line In.  Don't forget to put it back when you
> return to voice modes.
>
> PTT-Key:  I ran it DTR-Off, but you could also use RTS for keying.
>
> Set up at the home QTH is as follows-
> K3/10
> MFJ-941 tuner
> Long wire antenna - 130' long at 35' above ground.
> Two stereo cables - 3.5mm to 3.5mm, both male
> USB:  Elecraft KUSB.
> Digipan 2.0 running on XP Pro, SP2.
>
> I had a power setting of between 3 and 5 Watts.  With PSK31, that's
> enough.
>

I'm a bit puzzled by this, especially the selection of mic source. Do
you have to go through all this whenever you change from SSB to data
mode? Doesn't the K3 have independent settings for data mode so once
it's set up you just select data and it's all ready to go?
--
Julian, G4ILO K2 s/n: 392  K3 s/n: ???
G4ILO's Shack: www.g4ilo.com
Zerobeat Ham Forums: www.zerobeat.net/smf
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