[Elecraft] K3 and WSPR

[Tim Tucker]

I've never had to use Data A mode with VOX.  I just use the standard serial
and sound interface with CAT and it works fine for me.

Tim

On Sat, Feb 5, 2011 at 12:33 AM, Colin Potter <colin.potter1 at ntlworld.com>wrote:

> Hi Mike I had problems till I used Data A mode with VOX on.
>
> Link up the serial cable - you will have this done anyway to update the K3
> firmware. Then in WSPR set-up make sure the sound card is specified
> correctly, the power used (a look up table for dBm in the manual), get RTS
> to switch on transmit, checking this is OK in the K3 menu (PTT-KEY)Check
> the
> port corresponds with the computer. "Enable CAT" and put in the rig used
> from the pull down menu, no handshake, 8 data bits and one stop bit to suit
> the K3, Save settings (in FILE menu)
>
> Cables use line in and line out to line-in and audio out of computer. Set
> K3
> main menu for LINE IN. You will have to adjust line in gain and audio out
> to
> suit your set up so to have 5 ALC bars input on transmit (use WSPR tune
> button) to dummy load. Useful to turn off PC monitor speaker or you will
> hear the program output audio! Wide IF filter is fine.
>
> Use standard frequency transmission to adjust VFO to zero beat, if you have
> the K3 TXCO this will ensure adequate stability, if not a long warm up...If
> not you will get a "drift" measurement in the reports.
>
> Use web time e.g. D4 program to get time accurate to a second or so.
>
> Get reception working first. Use preamp/ATT to get audio into WSPR about
> 1dB
> for clear frequency. Too high and it will not decode properly but do not
> use
> RF control to reduce or sensitivity will be lost.
>
> Adjust frequency to position not occupied by others in reception  period.
> Transmit up to 20% of the time, if you have the latest WSPR use "transmit
> first" to avoid waiting too long.
>
> 5W is max needed, I have heard ZL from UK and 100mW gets reception reports
> from around Europe. 1W on 80m gets to the USA in the morning here!
>
> I've probably forgotten something so any problems, let us know. The manual
> is good too!
>
> Good luck
>
> 73 Colin M0DDT
>
> ----- Original Message -----
> From: "Mike Weir" <ve3wdm at hotmail.com>
> To: <elecraft at mailman.qth.net>
> Sent: Saturday, February 05, 2011 1:42 AM
> Subject: [Elecraft] K3 and WSPR
>
>
> >
> > Good evening, I tried about a month ago to get the K3 working with WSPR
> > and was not successful at all. I wanted to give it a go and get it going
> > this weekend but instead of getting frustrated I wanted to tap in on the
> > knowledge of this reflector.
> > Here is what I have...
> > Win XP
> > WSPR 2.0
> > K3 with the KXV3A
> >
> > Here is what I am looking for....
> > The cabling hookup
> > The setting in the K3
> > The setting in WSPR
> > .....in a nut shell all the info to get WSPR up and going...
> > Thanks very much in advance
> > Mike
> > VE3WDM
> > http://ve3wdm.blogspot.com
> >
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