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: [email protected] Subject: [Elecraft] Use of DB9 Switch with K3? To: [email protected], [email protected] Message-ID: <[email protected]> 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 No virus found in this outgoing message Checked by PC Tools AntiVirus (6.1.0.25 - 6.14880). http://www.pctools.com/free-antivirus/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html

