Once you learn how to fix this unwanted keying issue in Windows, there's little reason to ever use the default UNSAFE option of *CONFIG:PTT-KEY* (tap '1' to toggle between "USB SAFE" or "UNSAFE"). The K4 does not have any equivalent option because it is simply not needed.
To prevent unwanted keying of your K3 or K4 about 6 or 7 times when using DTR or RTS to key the rig, just disable two COM port settings (Serial Enumeration and Modem Control at Startup) using Windows Device Manager. Just follow the instructions and screenshots in this short document, linked from my QRZ.COM page <https://www.qrz.com/db/N6TV>: - How to prevent unexpected transmissions when using FTDI USB-to-Serial adapters <https://bit.ly/FTDItip> (online Google Doc, from post <http://elecraft.85.s1.nabble.com/Preventing-unexpected-transmissions-when-using-FTDI-devices-tp7644324.html> to Elecraft Reflector, August 12th, 2018) This applies to the Elecraft K3S, or a K3 with the FTDI version of the Elecraft KUSB, or the Elecraft K4, or the CW / FSK / PTT keying circuits in my S-BOX-USB <https://bit.ly/S-BOX>. If using a legacy 9-pin serial port on a PC like COM1: for keying, a simple registry edit is required. See pages 29 to 33 in this PowerPoint Presentation for the details, or contact me OFF LINE for help via TeamViewer QuickSupport <https://www.teamviewer.com/en-us/download/windows/> if you don't want to attempt this yourself: - Everything You Need to Know About USB and Serial Interfaces <https://bit.ly/USBserial2021>, updated for 2021, presented to Spokane DX Association, Feb. 3rd, 2022 - Watch YouTube recording of this presentation here <https://youtu.be/X1yLJ9mi0gY>. Note that moving a rig's USB cable to a new USB hub (internal or external), or using commercial "device driver updater" software (not recommended), or a major Windows update like upgrading from Windows 10 to Window 11, will usually reset these important driver options back to defaults, so if the keying problem returns, simply perform this procedure again. Then set CONFIG:PTT-KEY to UNSAFE and there will be no more hassles. 73, Bob, N6TV On Thu, Jul 4, 2024 at 5:42 PM W3FPR <w3fpr...@gmail.com> wrote: > Frank, > > Yes it should bring up RTS-DTR after the port is polled. > When running with Unsafe mode, pay attention to when the K3 is turned on > and when the computer is turned on. At times, you may have to turn the > computer on after the K3, and an easy way to prevent the extraneous > keying is to either use TEST mode or simply turn VOX off during the > computer boot time. > > 73, > Don W3FPR > > On 7/4/2024 6:54 PM, Frank Stein wrote: > > Don, > > Bingo. That, in fact, was the problem. Turning on "Unsafe" solves the > > problem. I use cwtype which sends to the com port and doesn't poll > > the comm port. > > Assuming I was using a program like N1MM, which does read from the com > > port (for frequencies), do I just set the PTT-KEY to RTS-DTR and turn > > on USB-safe and the rig will automatically set up RTS-DTR after it > > receives a poll? > > > > Thanks for the help everyone. > > > > 73, > > Frank > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@arrl.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
