[Elecraft] K3 and Kantronics TNC

[Graham Pemberton G7NEH]

Hi all,

Sorry if this is off topic, I have just put together my K3 s/n 08095 with the 
following options,
KPA3, KAT3 and KXV3A I plan to add more options later when I’ve saved up some 
more cash.

The K3 is working fine and is such a joy to use, one thing I am planning on 
doing is wiring up a Kantronics KAM XL tnc to the K3 to try some pactor, 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.

any guidance on this would be gratefully received

Regards
Graham G7NEH

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Re: [Elecraft] K3 and Kantronics TNC

[Jim Brown]

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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Re: [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.



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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Re: [Elecraft] K3 and Kantronics TNC

[Joe Subich, W4TV]

Simply put, you need to connect audio out from the Kantronics to Line IN
on the K3, Audio IN on the KAM to LINE OUT on the K3,  PTT Out on the
KAM to PTT IN (RCA or ACC) on the K3 and, if you use it FSK, on the KAM
to the FSK IN pin on the K3 ACC jack.  There is no RS-232 connection
between the two.

Your computer will use one serial port to connect to the K3 to control
frequency and mode if your logging program supports that.  Your computer
will use *a second* serial port to connect the KAM with an appropriate
*terminal emulator* or digital control program.

73,

   ... Joe, W4TV


On 4/15/2014 12:38 PM, 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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Re: [Elecraft] K3 and Kantronics TNC

[Graham Pemberton G7NEH]

Hi,

Many thanks to all who replied to my post the other day, I now know how to 
cable the TNC to the K3 and will be making them up soon.

Regards
Graham G7NEH

 
On 15 Apr 2014, at 16:51, Graham Pemberton G7NEH 
 wrote:

> Hi all,
> 
> Sorry if this is off topic, I have just put together my K3 s/n 08095 with the 
> following options,
> KPA3, KAT3 and KXV3A I plan to add more options later when I’ve saved up some 
> more cash.
> 
> The K3 is working fine and is such a joy to use, one thing I am planning on 
> doing is wiring up a Kantronics KAM XL tnc to the K3 to try some pactor, 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.
> 
> any guidance on this would be gratefully received
> 
> Regards
> Graham G7NEH
> 
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> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
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> 
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> Message delivered to grahampemberton...@btinternet.com

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