[Elecraft] KAT3A & KIO3B Upgrade for my K3

[Bob McGraw K4TAX]

I've attempted to configure MMTTY to run FSK with my K3S.  Conclusion is that a Terminal unit will be required.  Using AFSK is easy and I don't find any disadvantages.   No additional hardware required. 

Bob, K4TAX


Sent from my iPhone

> On Jan 10, 2019, at 4:57 PM, Nr4c <nr4c at widomaker.com> wrote:
> 
> None that I know of.  FSK is not normally a CAT control nor is it done with “handshake” signals on standard serial port. It is passed on the TX line of a RS-232 serial connection to a discrete pin on a radio for FSK signaling. My K3 has such a pin on the Acc2 connector on the rear of the radio. My IC806MkIIg also hat an FSK pin on the 13 pin DIN connector. Other rigs are similar. 
> 
> AFSK today is not what it used to be. Manufacturers have developed better TX and RX filters and I don’t really think you can tell the difference. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On Jan 10, 2019, at 9:37 AM, Joseph M. Durnal <joseph.durnal at gmail.com> wrote:
>> 
>> I don't think there is a lot of software that supports sending the FSK with
>> CAT commands.  Does anyone know of any others?
>> 
>> J
>> 
>>>> On Wed, Jan 9, 2019 at 4:42 PM Bill Frantz <frantz at pwpconsult.com> wrote:
>>>> 
>>>> On 1/9/19 at 8:05 AM, joseph.durnal at gmail.com (Joseph M. Durnal) wrote:
>>>> 
>>>> I think my only regret will be that I'll still need my separate FSK
>>>> interface, yeah yeah, AFSK, but if Elecraft didn't want us to use FSK,
>>> they
>>>> wouldn't have put it in the radio.
>>> 
>>> When I RTTY contest, I use a program that uses the CAT interface
>>> over USB to send and receive RTTY. That way I have no extra
>>> cables and am using the K3's RTTY encode/decode. I use RUMlogNG
>>> on a Mac. I don't know of any software for other platforms, but
>>> I assume it exists.
>>> 
>>> 73 Bill AE6JV
>>> 
>>> --------------------------------------------------------------
>>> Bill Frantz        | There are now so many exceptions to the
>>> 408-356-8506       | Fourth Amendment that it operates only by
>>> www.pwpconsult.com | accident.  -  William Hugh Murray
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