Jim, If you have a USB-based serial port, the symptom of a USB bus reset is several burst of enumeration on the bus. This usually affects DTR or RTS on a serial endpoint, and you may use those for keying or PTT. I see this here occasionally, but always when plugging in the hub that hosts the USB-serial adapter. The other times, it's a marginal power supply somewhere in the massive number of USB devices here in the shack.
I would check to be sure it *never* happens when the USB-serial is disconnected - IF that's what your serial connection happens to be.... In case you're using a Microsoft Windows product, the USB bus driver has a mind of its own and might also have bugs related to this type of behavior. Keep it up to date. 73, matt W6NIA On Sat, 26 Nov 2011 20:47:43 -0500, you wrote: >I'm enjoying my K3, which I assembled a couple of months ago. Great rig, >getting great reports. But I have a ghost in my shack who, every so often >when I'm doing something else in the shack, keys the mic, usually three >times, each time for a second or so. Then he doesn't do it for a while. >Since I'm only operating SSB, no signal is put out when he keys it. I'm >using the K3 with the Elecraft hand-held PTT mic. The rig is connected to a >PC running Ham Radio Deluxe, current version, but HRD doesn't seem to know >the rig is going into transmit. Any Ghost Busters out there looking for >work? > >Also, I'm running the output through an external peak detecting power meter. >During a transmission, the output power starts at around 50 W peak and if I >get windy (say, a 3-4 minute transmission), will go to about 100 W peak >during the transmission. Current meter on my power supply starts deflecting >higher as the output reads higher. I have the K3 set for maximum 110 W >output. > >Thanks, >jim > >James O. "Jim" Farmer, K4BSE >678-640-0860 >jofar...@mindspring.com (home, spam blocked) >Boss lady: http://kathysflute.com >Personal: http://home.mindspring.com/~jofarmer/index.html >"Strive for perfection, but settle for excellence." > >______________________________________________________________ >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 ______________________________________________________________ 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
