[Elecraft] K3S fsk with usb

[Bob McGraw K4TAX]

I agree with Don, why not do AFSK and eliminate all the extra hardware 
and cables?  No one except you will know the difference.

73
Bob, K4TAX





On 8/30/2018 12:20 PM, Don Wilhelm wrote:
> Peter,
>
> You will have to gain access to the RS-232 DTR or RTS signals.
> If you do not have the P3, you can insert the RJ45 to serial port 
> dongle and pick the signals from that connector.  Although I have not 
> tried it, I believe it will work.
> You will also need to use a "one transistor keying interface" (google 
> for it) to convert the signal level to TTL for driving the ACC 
> connector FSK pin.
>
> If you do have the P3, you can add a "Y" cable to the P3 connector 
> labeled "PC" to gain access to the serial port signals.
>
> Actually, you will likely find it easier to use AFSK A and drive the 
> audio from the internal soundcard in the K3S.
>
> 73,
> Don W3FPR
>
> On 8/30/2018 12:59 PM, Peter B wrote:
>> Hello list,
>> I want to do FSK with my K3S.
>> N1MM and MMTTY.
>> The USB cable i used it for radio control.
>> What kind of cable do i need for FSK or can i used the USB cable also.
>> Any suggestions are welcome.
>>
>> 73s
>> Peter/pd1rp
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