[Elecraft] KIO3B RTTY AFSK problem with Transmit

Don Wilhelm donwilh at embarqmail.com
Tue Jan 10 17:45:04 EST 2017


Dan,

It sounds like you are doing things right.
What is the Speaker slider on the computer set to?  Open the playback 
controls - normally set it to about 75%.  The "meter" in the computer 
soundcard display will not tell you the whole story.  Go to the Playback 
Controls to see the slider (Windows - Mac or Linux may be different).

Make sure there is nothing plugged into LINE IN (it overrides the Codec 
line in).  You may want to insert a plug into the LINE IN jack and 
quickly remove it just to make certain the contacts in the jack close 
properly.

You must set the MIC menu entry to LINE.

Set the audio level correctly (you can do that in TX TEST or connected 
to a dummy load so you do not transmit RF).  Tell your software 
application to "transmit", then adjust the "MIC" gain (actually LINE if 
you have set the menu correctly) until you have 4 bars solid with the 
5th bar flashing.

If you cannot achieve that audio level by manipulating to Speaker slider 
on the computer and the MIC Gain on the K3S, something is awry - contact 
K3support for additional assistance.

73,
Don W3FPR

On 1/10/2017 5:16 PM, Dan wrote:
> Did RU this past weekend and could not get KIO3B to XMIT-Receive is fine using MMTTY and N1MM. Ended up using my Signal Link for XMIT.
> Here is what I know.
> NO line in or out connections on back of radio (per earlier email I saw)
> Radio control, frequency, etc. work fine-just updated firmware
> USB Codec shows as USB Codec 3 on computer. I can see AFSK produced in transmit on MMTTY screen and the silly meter in the sound control window. but no audio reaches radio
> DATA Mode is set for AFSK A (like I have always used it for SIgnal Link)
> Even if I manually turn XMIT on no audio IN. (I am using VOX and not PTT) Do I need to enable PTT?
>
> I have tried switching MIKE to LINE IN to no avail.
>


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