Jobst, I have to say I've been amazed by the performance of the K3 internal tuner. Since it's relay based, I expected it to be inferior to the tuner in my TS-440 which is motor-driven. In fact, the inverse is true. It even tunes half of the G5rV as a very short inverted-L on 160 which I couldn't even get the Dentron super tuner to do. Lou WA3MIX ----- Original Message ----- From: "Jobst Vandrey" <[email protected]> To: <[email protected]> Sent: Saturday, December 04, 2010 1:19 PM Subject: [Elecraft] A few Questions on the K3
>I built a K2 a number of years ago while sailing (S/N #1442) and it served >me well as my only route for email to my family using Winlink and a pactor >modem. That K2 sits on the shelf at the moment (and may get sold shortly) >while I am using an Icom 703 Plus. > > I operate Digital modes (mainly PSK) and stick to QRP so Elecraft > equipment has always been on the short list. I am now in the process of > working on the antenna side of the equation and plan on a vertical Moxon > (reversible) in addition to my 120 foot long wire (with an Icom AH-4 > tuner) and a 33 foot vertical doublet fed with 450 ohm window line using a > 4:1 Balun. Once the antenna issue is complete, I am seriously considering > the upgrade to a K3 > > So - On to the questions: > > 1) With a 4:1 Balun and the K3 tuner, will I have any issues (6 meters to > 20 meters only) matching the vertical doublet (the Icom handles it OK)? > > 2) How could I continue to use the Icom Tuner with the K3 on the random > wire (80 to 6 meters)? How do I initiate a tuning cycle that would send > 10 watts to the AH4 in CW and then revert back to SSB for the PSK > > 3) Can the K3 initiate a tuning cycle on the AH4 without using the > internal tuner > > 4) I plan to use the MFJ 4116 Bias injector to introduce 12 volts on the > coax leg that feeds the reversible Moxon (needed to run the relay that > reverses the antenna pattern)- will this create an issue with the K3 > > Any thoughts or experience is welcome > > Thanks in advance > > Jobst Vandrey > AC0LP > > ______________________________________________________________ > 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
