Re: [Elecraft] KX3 Question on S-Meter Calibration
I thought I understood this but appears that I had it wrong. According to the SMTR calibration procedure, it is set with the PRE on and ATTN off. Calibration sets a 50uV signal to S9 and a 1uV to S2-S3. See this in the Calibration Procedures section of the manual (p51 in my 2009 version). I’ve been using the SMTR ABS mode ever since I discovered it. YMMV 73, Brian, K0DTJ > On Oct 10, 2022, at 14:05, D Remy wrote: > > Does that also apply to the K3? > > David R Hourdequin, PE > 828-421-6216 > >> On Oct 10, 2022, at 14:20, Don Wilhelm wrote: >> >> Greg, >> >> The KX3 is designed around having the preamp on most of the time. >> >> 73, >> Don W3FPR >> On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote: >>> I have noticed with my KX3 that the S-Meter is not calibrated that is 50 >>> microvolts (-73 dBm) at the antenna connector equals a S9 signal only when >>> the preamp is turned on. Is this normal and the way the KX3 is designed? >>> I thought it might be with the preamp off. >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to d...@w3fpr.com >> >> __ >> 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 >> Message delivered to d...@dremy.com > > > __ > 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 > Message delivered to huntin...@coastside.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Question on S-Meter Calibration
Thanks! David R. Hourdequin, PE Specialty Heavy Timber and Glulam Engineering Hayesville, NC 28904 828-421-6216 > On Oct 10, 2022, at 22:14, Walter Underwood wrote: > > I’m pretty sure the K3 has an S-meter absolute mode that adjusts the S-meter > reading when preamps and/or attenuators are turned on. > > The KX3 is supposed to have that mode, but it is not implemented. From the > manual errata: > > "Not implemented: S-meter absolute mode (MENU:SMTR MD); addressing of > multiple transverters (XVn ADR)." > > https://ftp.elecraft.com/KX3/Manuals%20Downloads/E740163E%20KX3%20Owner%27s%20Manual%20Errata%20C5-3.pdf > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Oct 10, 2022, at 2:04 PM, D Remy wrote: >> >> Does that also apply to the K3? >> >> David R Hourdequin, PE >> 828-421-6216 >> On Oct 10, 2022, at 14:20, Don Wilhelm wrote: >>> >>> Greg, >>> >>> The KX3 is designed around having the preamp on most of the time. >>> >>> 73, >>> Don W3FPR >>> On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote: I have noticed with my KX3 that the S-Meter is not calibrated that is 50 microvolts (-73 dBm) at the antenna connector equals a S9 signal only when the preamp is turned on. Is this normal and the way the KX3 is designed? I thought it might be with the preamp off. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@w3fpr.com >>> >>> __ >>> 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 >>> Message delivered to d...@dremy.com >> >> >> __ >> 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 >> Message delivered to wun...@wunderwood.org > > __ > 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 > Message delivered to d...@dremy.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Question on S-Meter Calibration
I’m pretty sure the K3 has an S-meter absolute mode that adjusts the S-meter reading when preamps and/or attenuators are turned on. The KX3 is supposed to have that mode, but it is not implemented. From the manual errata: "Not implemented: S-meter absolute mode (MENU:SMTR MD); addressing of multiple transverters (XVn ADR)." https://ftp.elecraft.com/KX3/Manuals%20Downloads/E740163E%20KX3%20Owner%27s%20Manual%20Errata%20C5-3.pdf wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Oct 10, 2022, at 2:04 PM, D Remy wrote: > > Does that also apply to the K3? > > David R Hourdequin, PE > 828-421-6216 > >> On Oct 10, 2022, at 14:20, Don Wilhelm wrote: >> >> Greg, >> >> The KX3 is designed around having the preamp on most of the time. >> >> 73, >> Don W3FPR >> >>> On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote: >>> I have noticed with my KX3 that the S-Meter is not calibrated that is 50 >>> microvolts (-73 dBm) at the antenna connector equals a S9 signal only when >>> the preamp is turned on. Is this normal and the way the KX3 is designed? >>> I thought it might be with the preamp off. >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to d...@w3fpr.com >> >> __ >> 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 >> Message delivered to d...@dremy.com > > > __ > 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 > Message delivered to wun...@wunderwood.org __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] communications on KX2 Mic's (MH3)
Mike ... The 5,000 or so of us who actually got microphones with our KX2s really do feel for you. Your point, stated ad infinitum, was well-taken the first time you made it. But your complaint is not with us who have had to delete your many posts. IT IS WITH ELECRAFT. We can't do one darn thing to help you. There is no question but that microphones paid-for should be microphones-delivered or else money refunded. If Elecraft refuses to issue a refund, then its a matter of fraud in which case you should seek an attorney. But don't keep railing on the reflector. We don't deserve it! 73, Kent K9ZTV On 10/8/2022 10:22 AM, Mike Smith VE9AA wrote: The point is, almost a year ago I purchased a KX2-shack-in-a-box kit and it came without a mic (it was purchased and paid for as part of that kit) and I had to inform Elecraft once it arrived that I was shorted a mic.) Nothing in the paperwork nor any communication before it arrived stated it would be arriving w/o a MH3 mic, so this was a surprise. -- This email has been checked for viruses by AVG antivirus software. www.avg.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Question on S-Meter Calibration
Does that also apply to the K3? David R Hourdequin, PE 828-421-6216 > On Oct 10, 2022, at 14:20, Don Wilhelm wrote: > > Greg, > > The KX3 is designed around having the preamp on most of the time. > > 73, > Don W3FPR > >> On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote: >> I have noticed with my KX3 that the S-Meter is not calibrated that is 50 >> microvolts (-73 dBm) at the antenna connector equals a S9 signal only when >> the preamp is turned on. Is this normal and the way the KX3 is designed? >> I thought it might be with the preamp off. >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to d...@w3fpr.com > > __ > 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 > Message delivered to d...@dremy.com __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Strange Selective Hearing in My K3
Sounds like a thermal problem, possibly with the 8v regulator. I have a problem with my K3 (S# 4K range). If the rig is cold ~60 F the 8v apparently goes out of regulation evidenced by the display illumination dimming on key down. The rig works normally otherwise. The problem goes away once the FP Temp warms a little - I wrote the number down somewhere but can’t find it now. Good luck & 73, Brian, K0DTJ > On Oct 10, 2022, at 09:49, Michael Carter wrote: > > Hi Eric, > > I'm voting with my friend Dave, K1WHS, > for looking first at the voltage regulators. > > The 8 volt regulator supplies the TC4427 > gate driver IC, which in turn provides 7R/7T voltages > separately to the Transmit and Receive switching circuits. > The loss of the 7R/7T voltages would disable the > PIN diode T/R switches and render the radio deaf > and unable to transmit. > > If the 8 volt regulator doesn't collapse after some > time observing its output voltage, I would check > the TC4427 (U11 on the RF Board) to be sure its > outputs are correct (the 7R/7T voltages). The > regulator is likely the first culprit - its '8A' output > pin provides power to a large number of circuits > in the radio. > > 73, > Mike, K8CN > __ > 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 > Message delivered to huntin...@coastside.net __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 Question on S-Meter Calibration
Greg, The KX3 is designed around having the preamp on most of the time. 73, Don W3FPR On 10/10/2022 1:58 PM, WA1JXR ALGIERI wrote: I have noticed with my KX3 that the S-Meter is not calibrated that is 50 microvolts (-73 dBm) at the antenna connector equals a S9 signal only when the preamp is turned on. Is this normal and the way the KX3 is designed? I thought it might be with the preamp off. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@w3fpr.com __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3 Question on S-Meter Calibration
I have noticed with my KX3 that the S-Meter is not calibrated that is 50 microvolts (-73 dBm) at the antenna connector equals a S9 signal only when the preamp is turned on. Is this normal and the way the KX3 is designed? I thought it might be with the preamp off. Greg WA1JXR __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Strange Selective Hearing in My K3
Hi Eric, I'm voting with my friend Dave, K1WHS, for looking first at the voltage regulators. The 8 volt regulator supplies the TC4427 gate driver IC, which in turn provides 7R/7T voltages separately to the Transmit and Receive switching circuits. The loss of the 7R/7T voltages would disable the PIN diode T/R switches and render the radio deaf and unable to transmit. If the 8 volt regulator doesn't collapse after some time observing its output voltage, I would check the TC4427 (U11 on the RF Board) to be sure its outputs are correct (the 7R/7T voltages). The regulator is likely the first culprit - its '8A' output pin provides power to a large number of circuits in the radio. 73, Mike, K8CN __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Faulty KDSP2 module
Chris, The KDSP2 consists of two boards: the factory-built DSPx module and the KDSP2 "carrier" board. When you say you swapped in a working DSP module, do you mean a working DSPx, or the entire KDSP2 assembly? 73, Lyle KK7P On Mon, Oct 10, 2022 at 8:22 AM Chris wrote: > Hello, > > I have a faulty KDSP2 module. The message that I get from DISPLAY button > press is in the attached picture. Normal state should show 'S1 nr nt' but > mine shows 'Sn G 7.0'. I have replaced it with a working DSP module, and it > works fine. Any ideas? > > Thanks, > > Chris KM1B > __ > 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 > Message delivered to kk7p4...@gmail.com __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Faulty KDSP2 module
Hello, I have a faulty KDSP2 module. The message that I get from DISPLAY button press is in the attached picture. Normal state should show 'S1 nr nt' but mine shows 'Sn G 7.0'. I have replaced it with a working DSP module, and it works fine. Any ideas? Thanks, Chris KM1B __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Strange Selective Hearing in My K3
When the signals disappear, can you transmit and see RF output? You might be losing one of the regulated DC voltages from the three terminal regulators mounted on the side wall. If you lose TX as well, check to make sure those regulators are working. It will affect all bands. Dave K1WHS On 10/9/2022 5:23 PM, Eric Fitzgerald wrote: I supposed in any lengthy marriage a selective ear or a biological mute button, so to speak, becomes inevitable ...or so it would appear with my aging K3, purchased in 2009. Here are the rather perplexing symptoms: After the K3 has been on a while all signals and noise disappear. The radios shows consistent s1 or 2 white noise. This is true on all bands, all modes and with the preamp, agc, noiseblanker, etc on or off. After turning the radio off for an hour or more, all signals return as normal - only to disappear again after an indeterminate period of time. I'm guessing that there is some failure that is affected by the component in question heating up. I use this radio in receive almost 24/7 monitoring the bands. Perhaps she is just tired of listening for me? ;-) Any ideas what this might be? Stupid operator error is never out of the question around here. I thought I would ask in here before bugging Elecraft service in case I'm missing something easy. TIA Eric KG6MZS www.kg6mzs.com I should add that when I transmit a tone from WJST-X, say, the red light comes on the K3, one bar lights up on the K3's RF meter but no power or SWR is registered on my external meter. So that would seem to eliminate anything disconnected from the rear panel connector via an intermittent connection. If that were the case, I would expect to see a "High SWR" reading before the power folded back. Eric __ 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 Message delivered to k1...@metrocast.net __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KXV3A For Sale
Unused KXV3, (K3 Xverter I/O, RX Ant I/O) accessory kit with install instructions FS for K3. $100ppd CONUS. Contact direct off list. Mike AC5P __ 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 Message delivered to arch...@mail-archive.com
