This is the solution. Bob showed me how to do it before the UNSAFE option existed AFAIK. I wasn’t aware it was a fixable problem beyond booting computer first and only powering radio after everything was stable, or setting TX TEST mode. All a pain.
Do this. 73 Josh W6XU > On Jul 5, 2024, at 11:39 AM, Bob Wilson, N6TV <[email protected]> wrote: > > 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 > ______________________________________________________________ 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 Message delivered to [email protected]

