They don't, but if it is triggered by RF, the proposed suggestion is simple one and worth trying with available parts.
Rich - K1HTV -----Original Message----- From: Bob Naumann [mailto:[email protected]] Sent: Monday, March 29, 2010 21:00 PM To: 'Rich - K1HTV'; [email protected] Cc: [email protected] Subject: RE: [Elecraft] T32MI K3 rig problem How do they know it's the radio and not the power supply shutting off? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rich - K1HTV Sent: Monday, March 29, 2010 7:46 PM To: [email protected] Cc: [email protected] Subject: [Elecraft] T32MI K3 rig problem IZ1CRR Maury, Regarding the 40M problem with Derek's K3, it may be related to stray 40M RF getting into the radio when it is keyed. If this is the cause, an easy fix may be to create an imaginary ground on it by connecting a 1/4 wave long (around 10.56 Meters or 34.6 feet) wire to the ground screw on the back of the K3. The high impedance end of the 1/4 wave wire is transformed to a low impedance at the radio. This should reduce any stray RF around the radio. It is a simple thing to try and may fix the problem. I would be interested to hear if it fixes the 40 Meter problem. I had no difficulty in working T32MI on CW & SSB with 100 Watts and a wire antenna from my QTH in Virginia, my IOTA number 964. They are a great operators! 73, Rich - K1HTV Retired from VOA = = = >From a post of the K3 Reflector from Roland, DC1RS 2010-03-28 08:30 This morning local time (Saturday 21:00 gmt) we started our journey to Caroline island. Estimate 5 days sailing. Almost 9,000 Qs in our logs from the 3 days on Malvern. Derek's beloved Elecraft K3 has a problem! On 40m only, the instant the rig is keyed, even at min power, it switches off as if the supply plug is disconnected. After an indeterminate delay power is restored and the rig can be used on other bands. Any ideas, please contact Maury, IZ1CRR (iz1crr @ tin.it). 73 Derek ______________________________________________________________ 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 ______________________________________________________________ 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
