[Elecraft] How to interface SteppIR controller to K3S when using USB for PC connection.

Jim Mullen kk1w.jim at gmail.com
Sat Aug 1 15:33:11 EDT 2015


I have this working on my K3S. Here's the step by step, a short narrative
follows:


Parts required:

(1) Elecraft RJ-45 to DE-9S adapter (Part# E980297 - included with K3S)

(1) SteppIR Transceiver Control cable #S-13 (I believe this is now shown on
the SteppIR website as Transceiver Interface Cable - OTHER MODELS)

Procedure:


As a precaution turn off both the K3S and SteppIR controller before
beginning


1. Attach the Elecraft RJ-45 adapter to the RS232 jack on the back of the
K3S

2. Attach one end of the SteppIR S-13 cable to the DE-9S end of the
Elecraft cable

3. Attach the other end to the S-13 cable to the Data In jack on the back
of your SteppIR controller
4. If you're not using logging software set CONFIG:AUTOINF= Auto 1. If
you're are using logging software this setting can remain the default
CONFIG:AUTOINF
= nor
4. Turn on the SteppIR controller
5. Use the mode button to select the Setup Mode, then choose Transceiver
Setup
6. In the Transceiver Setup screen set Baud = 38400 and Mode - KENW.

7. Exit the settings, then Save your changes.

8. Use the Mode button to choose General Mode.

9. Cycle the power on the SteppIR controller.

10; That's it, your done!


Notes:.


Thanks to Wayne/N6KR for posting information that the RS232 port
'broadcasts' (or mirrors) data from the USB connection. and to Mike/K2MK
for the correct setting of CONFIG:AUTOINF.

Wayne/N6KR has confirmed the broadcast data is sent at 38400. It isn't
possible to set the RS232 baud rate when USB is selected.


If it doesn't work at first be sure your logging/control software is still
talking to the K3S. Don't forget to power cycle the SteppIR controller
after making any changes in its configuration.


The SteppIR controller must be in General Mode, not Ham Mode.


My configuration:


K3S

USB connection to PC (K3S CONFIG:RS232=USB)

Working fine with DXlabs and N1MM+ software
Older SteppIR  with Original Controller model (not the SDA100 but it
shouldn't matter. However menu selections may have different wording).


Hope this helps and as always YMMV

Jim/KK1W


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