Jim, This will key the K3 and it will put out whatever power you have it set for, I set mine for 55 watts. 73 Ken K5DNL
----------------------------------------------- --- On Mon, 9/14/09, Ken Roberson <[email protected]> wrote: > From: Ken Roberson <[email protected]> > Subject: Re: [Elecraft] Need help operating K3 with Yaesu Quadra amplifier > To: [email protected], [email protected] > Date: Monday, September 14, 2009, 1:07 PM > Jim, > Set the K3 to operate CW in SSB mode first. > Hope this helps > 73 Ken K5DNL > ------------------------------------------------------ > > --- On Mon, 9/14/09, [email protected] > <[email protected]> > wrote: > > > From: [email protected] > <[email protected]> > > Subject: [Elecraft] Need help operating K3 with Yaesu > Quadra amplifier > > To: [email protected] > > Date: Monday, September 14, 2009, 11:26 AM > > I'm trying to find the correct > > sequence of steps to make > > sure my new Quadra amplifier is correctly adjusted to > my > > K3. I have it hooked through the Band-Data1 8-pin > cable > > and the Quadra does change bands correctly as it > tracks > > the K3. The Quadra also switches to the correctly > > programmed input and/or output spigots. All that is > > fine. > > > > Taken from the Quadra Operating Manual, "Drive power > > must be at least 50 watts for accurate SWR detection, > > > and 70 to 80 watts for optimum tuner performance." > > > > The problem is primarily in keying the K3 properly to > allow > > > > the Quadra's antenna tuner to adjust properly. The > > Quadra requires 70-80 watts to tune correctly so I > need to > > > > key the K3 with the TUNE button which puts out 5 watts > > > as it's set up. (I realize that I could reset the > TUNE > > output > > to start at a higher rate but surely that's not the > best > > way) > > Otherwise, I must press TUNE, crank the PWR knob from > > > the 5 watts up to 70-80 watts, then press the TUNE > button > > on the Quadra but the amplifier keys for about > a second > > as the tuner starts to tune, then drops out, > displaying > > the > > message "ERROR" on the display. Now I'm back to 5 > > watts on the K3 again so after pressing the K3's TUNE > > > button again I must crank on the PWR knob again (which > > > is about 4 full revolutions). For as many times as I > try > > > > this, the K3 will not stay keyed up long enough for > the > > Quadra to tune the antenna. BTW - I don't see any > error > > messages from the K3 during this time. > > > > Using the same amplifier but with my IC-756PRO as a > > driver [in RTTY mode at about 70 watts -- with no > physical > > > > connections for band changing] it reads the > > frequency/band and automatically changes bands and I > > can press the Quadra's TUNE button and it tunes up > > perfectly. Quickly, painlessly and correctly -- one > easy > > operation which takes, at most, about 5 seconds. > > > > Realizing that all is normal with the Quadra, tuner > and > > antenna I switch the input of the Quadra back to the > K3 > > (which changes the PTT, ALC and RF input lines), then > I > > try the K3 TUNE again. I crank up the PWR knob from > 5 > > watts to 70-80 watts, press the Quadra's TUNE button > but > > I see the same thing: it trys to tune for about a > second, > > > > then drops back with the "ERROR" message. The K3 > just > > doesn't seem to want to stay in TUNE mode (which is > > displaying CW) until the amplifier tuner can complete > its > > job. [It's not because it got tuned up properly with > the > > PRO as the Quadra will always reinitiate a tune when > so > > instructed with the TUNE button] > > > > I've read everything I can find on hooking up the > Quadra, > > both to the K3 and to other transceivers. There's > LOTS of > > > > excellent documentation out there and I appreciate all > the > > > > work from those folks. I'm relatively sure that my > > hookup > > between the two is fine. > > > > I guess what I'm asking is -- What are the steps used > by > > other K3/Quadra users to change a band and make sure > > the Quadra's tuner is properly tuned. What am I > missing > > > > to keep the K3 transmitting until the Quadra can > complete > > its tune operation? It's just so easy with the PRO > and so > > > > hard with the K3, but perhaps it's something I'm > > overlooking or doing incorrectly (<-- major > > possibility) > > > > BTW - The Quadra will memorize the tuning positions > for > > various frequencies for different antennas so I guess > I > > could let the IC-756PRO to do all the set up but I'm > trying > > > > to wean myself away from the 756PRO and do everything > > > on my K3. The K3 shines in SO MANY places, it just > > should be able to be easy here too. > > > > Also, last week on the > > [email protected], > > a fellow presented > > a wonderful document listing, for someone else, on the > > > steps to tune up the Quadra to a couple of different > > transceivers. It looked so neat and I thought it was > > > exactly what I needed. Unfortunately, it did not > work for > > > > my K3/Quadra combination............. rats! > > > > Sorry for the long note but is there any hope for > me? > > ....... > > let me re-phrase that ---- is there any HELP for me? > > > > Thanks and 73, > > Jim - K5LAD > > > > > > > > > ------------------------------------------------------------- > > > > Growing old is like being increasingly > > penalized for a crime you haven't committed. > > -- Anthony Powell > > > ----------------------------------------------------------- > > Visit my web page at: > > www.hayseed.net/~jpk5lad/ > > ============================= > > > > > ______________________________________________________________ > > 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 > ______________________________________________________________ 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
