[Elecraft] K3S's built-in RTTY

[Ed Muns]

This RTTY system configuration is the worst one I can think of (sorry!).
The RTTY receive will be great for you and transmit will be greatly
compromised, for both you and your QSO partners.  Once you have a PC/modem
interfaced to the K3S for receive it is trivial to use it for transmit as
well.  The whole reason for the Elecraft built-in feature is for
configurations where there is no PC and RTTY modem.

The Elecraft CW-RTTY feature is a tremendous benefit for working one or, at
most, a very few contacts without the complication of a PC and RTTY modem
hardware or software.  The caveat is few people can send good CW at 60 WPM
so the copy by the QSO partner will be frustratingly slow.

In a contest, for a few contacts, this feature can work well using the K3S
CW/RTTY memories as long as the contest exchange is not unique, e.g., serial
numbers.  You can have one message with your call sign for answering CQing
stations and second message with your exchange.  You just press the K3S
message buttons and the RTTY is sent out at the normal 60 wpm.

Ed W0YK
______________________________________________________________________

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don
Pomplun
Sent: 08 March, 2017 19:43
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3S's built-in RTTY

I'm hoping hat I can use the K3S sound card hardware & PC software for 
the receive side, and use the paddle CW interface as the transmit side.  
Any experience in the group with doing that?

Don   K2BIO



On 03/08/2017 07:54 PM, Joe Subich, W4TV wrote:
>
> > For those using the K3, get an external soundcard, even an inexpensive
> > one and use the K3's VOX - it will perform better and with lower noise
> > than the Signalink.
>
> And it will not require that the sound car transmit level be turned to
> the maximum as is the case with Signalink (read their instructions).
> By running the sound card transmit level at no more than 80% the TX
> audio is generally *significantly* cleaner because the sound card audio
> chain is not being driven into clipping.
>
> 73,
>
>    ... Joe, W4TV
>
>
> On 3/8/2017 6:50 PM, Don Wilhelm wrote:
>> Actually, the K3 has isolation for the Line In and Line Out signals, and
>> no interface is required for digital modes.  Just a computer soundcard
>> and good quality audio cables so they do not pick up hum, buzz and
>> noise.  PTT is not required either, use VOX.  Actually, the Signalink
>> PTT is derived from the audio stream - so in effect, the Signalink has
>> its own simplistic VOX which activates its PTT output.
>>
>> For those using the K3, get an external soundcard, even an inexpensive
>> one and use the K3's VOX - it will perform better and with lower noise
>> than the Signalink.
>>
>> For the K3S and a K3 that has the new KIO3B option installed, everything
>> is the same, except the "external soundcard" (as seen by the computer
>> application) is built into the K3/K3S and no audio cables are involved.
>>
>> 73,
>> Don W3FPR
>>
>> On 3/8/2017 6:18 PM, Don Pomplun wrote:
>> like the SignalLink USB.
>>> Am I correct so far?
>>> So then fig 10-14 (Fred's book) gives me the impression that with this
>>> hookup, I can then run any RTTY software on the PC and the PC to K3S
>>> interfacing is all taken care of, right?
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