Re: Difficulty with PSK

Posted by Greg - AB7R on
URL: http://elecraft.85.s1.nabble.com/Difficulty-with-PSK-tp2741511p2741765.html

PSK-D is ONLY for direct paddle input to translate CW to PSK or using a terminal program
connected to the RS232 port...such as the terminal tab on the K3 utility.  If you are using a
digital mode program as you are, you must use Data-A, not PSK-D.

-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065


On Wed Apr 29  3:11 , tom wylie  sent:

>I'm not sure this is the correct forum to ask for answers, but I am
>using my K3....
>
>My setup consists of a PC running Hamlogger  32  V 3.17 with both MMTTY
>and MMVARI embedded.
>I have a USB Microkeyer II from microham and of course my K3  with
>latest software.
>
>I have been running the K3 since last June.   I have been using RTTY
>using both Logger 32 and Win-test without any problems what-so-ever and
>in fact this its a great set up with the dual pass band filters in the K3.
>
>This week I tried PSK31 - nothing.
>
>I have called CQ till I am blue in the face and get no reply.   I called
>a local ham to monitor my signals and he says there is NO signal only a
>"pattern" on his screen, but he can tell when I start and stop
>tansmitting.  
>
>I have the K3 set to Data Mode - PSK D  31bps
>
>I am using the official Microham interface to radio leads connected to
>Line in / Line Out.
>I have set the levels admittedly using RTTY....
>
>ASs I said everything works fb in RTTY.
>
>I can monitor the PSK tones using the K3 monitor facility and to me (not
>an PSK expert) they sound OK.   I get output from the rig set at 25
>watts.   I can also see this on my power meter.
>My SWR is good.   I have tried varying the audio output from my PC to
>the interface to the rig
>from high to zero, but I cannot detect any material difference in the
>level of tone via the monitor facility.   I have listened to my output
>on another receiver and to me it sounds OK, but my friend insists it is not.
>
>It may be that I am grossly over modulating - I dont know.   Apart from
>varying the input in the Line IN socket via the K3 menue, is there any
>other adjustment?
>
>How have others set up their K3 to send PSK.   On receive, my set up
>works very nicely and I
>have received many DX stations using the filters in the K3, but I cannot
>TX for some reason.
>
>I tried downloading several PSK software programmes and run them
>independently, but still I cannot get any other station to "see" my signal.
>
>I have run out of ideas?    Can anybody help?
>
>Tom
>GM4FDM
>
>
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