Well, I have never had my K3 hooked up to any amplifier other than the KPA500. Before I got the KPA500 I did have a PW-1 but I sold that. Which reminds me, I should buy the new brick amp for the KX3.
73, phil On Mar 26, 2014, at 10:00 AM, Toby Pennington <[email protected]> wrote: > > The only time I have experienced some amount of attenuation on receive is > when I was using some other amplifier besides the KPA 500. > > I found I had to totally disconnect all my cabling between the amplifier and > the rig. Since I am using the K line completely, trying to use an external > amp other than the KPA 500 can be done without disconnecting all the > cabling, but on receive you will experience attenuation of the receive > signals. To have full receive using another brand of amp, you will have to > remove the data transfer cabling between the rig and amp. I hope I have > this right, as it has been some time since I experimented with using an amp > with more output than the KPA 500. > > Toby K4NH > > > -------- Original Message -------- > Subject: Re: [Elecraft] T/R switching problem > Date: Wed, 26 Mar 2014 06:53:18 -0700 > From: Phil Hystad <[email protected]> > To: Mike K2MK <[email protected]> > CC: [email protected] > > > > I have a similar (close but not identical to symptoms below) problem with > K3 receive attenuation. I do not have a SteppIR and this same problem > occurred > on more than one antenna (80-meter dipole, Traffie Hex Beam). > > My symptoms were that when I turned on the radio in the morning, the band > per the display on the P3 was flat, virtually no "visible" signals. No matter > as I was doing my morning reading with my coffee. > > Later, I went to the radio and there should have been some good activity > on 20, 17, 15, 12, and 10. I did have signals but no where near as much > as I think there should have been. I thought maybe the KAT500 was out > of tune so I fooled with that, Xmitted tune and so on and no real change. > > I checked everything I could think of such as change in PRE setting (I was > on PRE), Attenuation (no, was not), and so on. > > Finally, I tried the old computer programming trick, turn it off and turn it > on again. > > When the K3 came back up the bands were crowded with signals. So, there > was some significant attenuation going on but turning off (front panel > switch only) the K3 and turning it back on fixed everything. > > Ideas, comments?? Oh, this has happened only that one time so far. > > 73, phil, K7PEH > > > On Mar 26, 2014, at 4:14 AM, Mike K2MK <[email protected]> wrote: > >> Hi Jan, >> >> What is your antenna. There has been an ongoing thread on the SteppIR site >> regarding this identical problem with many types of transceivers, not just >> the K3. If you have a SteppIR antenna (any model) you should take a look at >> their Yahoo site. >> >> 73, >> Mike K2MK >> >> >> Jan Ditzian wrote >>> I am having a problem with T/R switching in my K3. The symptom is that, >>> after I transmit, the receive signals are sometimes very attenuated. >>> This problem has gotten worse. At first, simply a quick tap on the PTT >>> switch fixed everything, but now, at least on phone, I must make a brief >>> additional transmission to get the receive to return. Today, the >>> problem got worse, and sometimes I have to really fuss with things to >>> get receive back. Here are some questions: >>> >>> 1. Is there a T/R relay in the K3, and does this sound like it is >>> sticking, at least to the extent that it does not make good contact >>> on receive? >>> 2. Has anyone had the similar problem, and what was the solution? >>> 3. If it is a relay, can it be replaced easily, or is this a return to >>> Elecraft situation? >>> 4. If it is simply a relay replacement, where is the relay located? >>> >>> Thank you, >>> >>> Jan, KX2A >> >> >> >> >> >> -- >> View this message in context: >> http://elecraft.365791.n2.nabble.com/T-R-switching-problem-tp7585979p7585987.html >> Sent from the Elecraft mailing list archive at Nabble.com. >> ______________________________________________________________ >> 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] > > ______________________________________________________________ > 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] > > > > ______________________________________________________________ > 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] ______________________________________________________________ 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]
