[Elecraft] Use of DB9 Switch with K3?

[Joe Subich, W4TV]

> When I need to load software or do any adjustments with K3-EZ or the
> Utilities, I switch to the "real" comp port. When I operate, I switch
> to the MicroHam.

There is no need to switch cables to use K3-EZ.  Configure K3-EZ to
use the "2nd CAT" port in microHAM Router.

73,

    ... Joe, W4TV

On 12/18/2010 1:31 PM, Luis V. Romero wrote:
> Hi George:
>
> Just heard you on 10 meters a couple of minutes ago calling CQ on CW.
>
> Although I don't use a P3 (My new roof just finished being installed a
> couple of hours ago, so the P3 will wait for later in 2011), my setup is the
> following:
>
> "Real" com port 1 from my computer goes to side B of the switch.  The
> MicroHam MK2 serial output goes to port A.  There is a standard RS232 cable
> going from the common output of the switch feeding the serial input of the
> K3.
>
> When I need to load software or do any adjustments with K3-EZ or the
> Utilities, I switch to the "real" comp port.  When I operate, I switch to
> the MicroHam.  You can do this while the MicroHam is online, and it does not
> bother it.  The frequency display on its front panel shows dashes until I
> switch back to the MicroHam output on the switch.
>
> Its transparent and I have never run into any issues with this setup at all.
>
> -lu-W4LT-
>
> -------------------------------
>
> Message: 23
> Date: Fri, 17 Dec 2010 22:45:10 EST
> From: Georgek5kg at aol.com
> Subject: [Elecraft] Use of DB9 Switch with K3?
> To: support at microham.com, elecraft at mailman.qth.net
> Message-ID:<2b4b3.72d9996.3a3d8846 at aol.com>
> Content-Type: text/plain; charset="US-ASCII"
>
> At times, my microHam CW Keyer is connected to my K3 via the P3.   However,
> when I want to download new firmware for the K3, I have to disconnect  the
> CW Keyer from the RS232 port, and connect the DB9 from the computer's serial
>
>   port to the K3 via the P3.
>
> Can I use a DB9 A/B switch to switch between the the two DB9 cables without
>   creating any problems?
>
> 73, George
>
> George  Wagner, K5KG
> Sarasota, FL
> 941-400-1960  cell
>
>
>
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