[Elecraft] K3 and Kantronics TNC

[Lynn W. Taylor, WB6UUT]

The radio port on the KAM (and most other TNCs) is a DE-9 connector.  
It's the same D-Shell connector that would be a 9 pin serial port.

The 9 pin connector on the KAM is not a serial port.  The 25 pin 
connector goes to your computer, and is a serial port.

Typically the cable from the KAM to the radio has either a MIC connector 
(audio in and PTT) and a speaker connector, or it could go to separate 
audio and PTT jacks on the back of the K3.

I don't have a K3, I have at least one KAM.

<http://wa8lmf.net/miscinfo/Kantronics_TNC_Radio_Conn.pdf>

73 -- Lynn

On 4/15/2014 9:38 AM, Jim Brown wrote:
> On 4/15/2014 8:51 AM, Graham Pemberton G7NEH wrote:
>> I’m a bit confused on this, do I have to go from the KAM XL to the 
>> RS232 port and the audio in/out connectors on the K3 or can I just 
>> use the RS232 port on the K3.
>
> The Kantronics generates data as audio to modulate the K3, and decodes 
> the received audio to put characters on your screen. You will need 
> audio in and out to/from the K3. The RS232 port in the K3 allows a 
> computer to control the K3, and to get information from the K3 about 
> frequency and operating mode. It does NOT include audio.
>
> That's all I know about this box, so you'll have to study the manual 
> to understand what to do with the serial port -- that is, does it go 
> to the computer or to the radio, and how the Kantronics uses it.
>
> 73,
>
> Jim K9YC
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